■ 著書・論文歴
1. |
著書 |
Advanced Computational Applications of Geometric Algebra Springer Proceedings in Mathematics & Statistics 445 (共著) 2024 |
言語種別 | 英語 | 発行・発表の年月 | 2024 | 形態種別 | 単行本(学術書) | 査読 | 査読あり | 標題 | Advanced Computational Applications of Geometric Algebra | 執筆形態 | 共編者 | 掲載誌名 | Springer Proceedings in Mathematics & Statistics | 掲載区分 | 国外 | 出版社・発行元 | Springer Nature Switzerland AG, Cham, Switzerland | 巻・号・頁 | 445 | 総ページ数 | 257 | 担当範囲 | Editorial work | 国際共著 | 国際共著 | 著者・共著者 | David W. H. A. Da Silva, Dietmar Hildenbrand, Eckhard Hitzer | 概要 | David W. H. A. Da Silva, Dietmar Hildenbrand, Eckhard Hitzer (eds.), Advanced Computational Applications of Geometric Algebra, Springer Proceedings in Mathematics & Statistics, Vol. 445, Springer Nature Switzerland AG, Cham, Switzerland, 257 pages, published: 04 June 2024. ISBN: 978-3-031-55984-6. DOI: https://doi.org/10.1007/978-3-031-55985-3. | researchmap用URL | https://link.springer.com/book/10.1007/978-3-031-55985-3 | |
2. |
著書 |
Advanced Computational Applications of Geometric Algebra - First International Conference, ICACGA 2022, Colorado Springs, CO, USA, October 2-5, 2022, Proceedings Lecture Notes in Computer Science 13771 (共著) 2023/12 |
言語種別 | 英語 | 発行・発表の年月 | 2023/12 | 形態種別 | 単行本(学術書) | 査読 | 査読あり | 標題 | Advanced Computational Applications of Geometric Algebra - First International Conference, ICACGA 2022, Colorado Springs, CO, USA, October 2-5, 2022, Proceedings | 執筆形態 | 共編者 | 掲載誌名 | Lecture Notes in Computer Science | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 13771 | 担当範囲 | Editing | 国際共著 | 国際共著 | 著者・共著者 | D. DaSilva, D. Hildenbrand, E. Hitzer | 概要 | D. DaSilva, D. Hildenbrand, E. Hitzer (eds.), Advanced Computational Applications of Geometric Algebra - First International Conference, ICACGA 2022, Colorado Springs, CO, USA, October 2-5, 2022, Proceedings, LNCS Vol. 13771, SpringerNature, Cham, Switzerland, 24 Dec. 2023, ISBN: 978-3-031-34030-7, URL: https://link.springer.com/book/9783031340307 | researchmap用URL | https://link.springer.com/book/9783031340307 | |
3. |
著書 |
Quaternionic Integral Transforms - A Machine-Generated Literature Overview Trends in Mathematics (Research Summaries) 1 (共著) 2023/08 |
言語種別 | 英語 | 発行・発表の年月 | 2023/08 | 形態種別 | 単行本(学術書) | 標題 | Quaternionic Integral Transforms - A Machine-Generated Literature Overview | 執筆形態 | 編者 | 掲載誌名 | Trends in Mathematics (Research Summaries) | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 1 | 総ページ数 | 177 | 担当範囲 | All editing, introduction, chapter introductions | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer (editor), S.J. Sangwine (foreword), Quaternionic Integral Transforms - A Machine-Generated Literature Overview, Trends in Mathematics (Research Summaries), Birkhauser, Cham, Switzerland, 177 pages, Aug. 2023. DOI: https://link.springer.com/book/10.1007/978-3-031-28375-8 | researchmap用URL | https://link.springer.com/book/10.1007/978-3-031-28375-8 | |
4. |
著書 |
Empowering Novel Geometric Algebra for Graphics and Engineering - 7th International Workshop, ENGAGE 2022, Virtual Event, September 12, 2022, Proceedings Lecture Notes in Computer Science 13862,pp.1-135 (共著) 2023/04 |
言語種別 | 英語 | 発行・発表の年月 | 2023/04 | 形態種別 | 単行本(学術書) | 査読 | 査読あり | 標題 | Empowering Novel Geometric Algebra for Graphics and Engineering - 7th International Workshop, ENGAGE 2022, Virtual Event, September 12, 2022, Proceedings | 執筆形態 | 共編者 | 掲載誌名 | Lecture Notes in Computer Science | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 13862,pp.1-135 | 総ページ数 | 135 | 担当範囲 | Editing | 国際共著 | 国際共著 | 著者・共著者 | Eckhard Hitzer, George Papagiannakis, Petr Vasik | 原著者 | Eckhard Hitzer, George Papagiannakis, Petr Vasik | 概要 | Eckhard Hitzer, George Papagiannakis, Petr Vasik (eds.), Empowering Novel Geometric Algebra for Graphics and Engineering - 7th International Workshop, ENGAGE 2022, Virtual Event, September 12, 2022, Proceedings, Springer, Cham, LNCS, Vol. 13862, 135 pages, April 2023, ISBN: 978-3-031-30922-9, DOI: https://doi.org/10.1007/978-3-031-30923-6 | researchmap用URL | https://doi.org/10.1007/978-3-031-30923-6 | |
5. |
著書 |
Quaternion and Clifford Fourier Transforms (単著) 2021/09 |
言語種別 | 英語 | 発行・発表の年月 | 2021/09 | 形態種別 | 単行本(学術書) | 標題 | Quaternion and Clifford Fourier Transforms | 執筆形態 | 単著 | 掲載区分 | 国外 | 出版社・発行元 | Chapman and Hall/CRC | 総ページ数 | 472 | 担当範囲 | Evertything | 著者・共著者 | Eckhard Hitzer, Foreword by S.J. Sangwine, | 概要 | Quaternion and Clifford Fourier Transforms describes the development of quaternion and Clifford Fourier transforms in Clifford (geometric) algebra over the last 30 years. It is the first comprehensive, self-contained book covering this vibrant new area of pure and applied mathematics in depth.
The book begins with a historic overview, followed by chapters on Clifford and quaternion algebra and geometric (vector) differential calculus (part of Clifford analysis). The core of the book consists of one chapter on quaternion Fourier transforms and one on Clifford Fourier transforms. | researchmap用URL | https://www.routledge.com/Quaternion-and-Clifford-Fourier-Transforms/Hitzer/p/book/9780367774660 | |
6. |
著書 |
ebook: 持続可能な 世界のために ebook publication (共著) 2021/08 |
|
7. |
著書 |
持続可能な 世界のために (共著) 2021/08 |
言語種別 | English and Japanese | 発行・発表の年月 | 2021/08 | 形態種別 | 単行本(学術書) | 標題 | 持続可能な 世界のために | 執筆形態 | 共編者 | 掲載区分 | 国外 | 出版社・発行元 | Bookmundo Osiander, Tuebingen, Germany | 総ページ数 | 286 | 担当範囲 | Coordinating Editor | 著者・共著者 | E. Hitzer, G.C. Kimura, M. Shukuya, A. Takeuchi (eds.), Foreword by P. Hastings | 概要 | 第一回目は再生可能エネルギー、2018年の第二回は省エネルギー、2020年の第三回は大学の運営と教育がテーマであった。国際基督教大学、上智大学、立命館大学、東京都市大学、東京家政大学、東邦大学、千葉商科大学からの教職員学生が企画・運営に加わった。ワークショップはニューヨークのICU財団およびドイツ語圏日本学術振興会研究者同窓会から助成を受けて行われた。 これらのワークショップを企画する動機となったのは、日本が持続可能な社会となるためには、原子力や化石燃料の輸入に頼らないエネルギー供給を実現する必要があるという認識であった。そのためには、省エネルギーと再生可能エネルギーを活用することが前提となる。若い世代を社会に送り出す任務を負う大学は、これらの可能性について教えるとともに、大学自体が学生や社会にとって、信頼に足るモデルを提供しなければならない。 | researchmap用URL | https://publish.bookmundo.de/site/?r=userwebsite/index&id=eckhardhitzer/bookdetails/270157 | |
8. |
著書 |
Christ Centered Stewardship for the Environment – Responsibility, Energy, Care and Architecture (単著) 2021/03 |
言語種別 | 英語 | 発行・発表の年月 | 2021/03 | 形態種別 | 単行本(学術書) | 標題 | Christ Centered Stewardship for the Environment – Responsibility, Energy, Care and Architecture | 執筆形態 | 単著 | 掲載区分 | 国外 | 出版社・発行元 | Bookmundo Osiander, Tuebingen, Germany | 総ページ数 | 72 | 担当範囲 | The whole book. | 著者・共著者 | Author: Eckhard Hitzer
Foreword: Prof. Dr. Goro C. Kimura | 概要 | Post Fukushima, there are rich opportunities in Japan for renewable energy and energy efficiency, yet without proper ethics humanity may stumble again. The book begins with Christ Centered Stewardship for the Environment. Then it shows the great opportunities particularly in Japan regarding full renewable energy supply. To begin sweeping in front of his own door, the author presents a feasibility study for wood gas co-generation at his university in suburban Tokyo. As for sustainable energy efficient architecture, Kaufmann Bausysteme GmbH (KBS) equipped a Social Center in Austria with cross laminated timber (CLT) modules. ... Foreword by Prof. Goro C. Kimura. | researchmap用URL | https://osiander.bookmundo.de/site/index.php?r=userwebsite/index&id=eckhardhitzer/ | |
9. |
著書 |
Space Group Visualizer (共著) 2021/03 |
言語種別 | 英語 | 発行・発表の年月 | 2021/03 | 形態種別 | 単行本(学術書) | 標題 | Space Group Visualizer | 執筆形態 | 共著 | 掲載区分 | 国外 | 出版社・発行元 | Independently published – KDP, Seattle (US) | 総ページ数 | 162 | 担当範囲 | Most of the text and graphics. | 著者・共著者 | Eckhard Hitzer, Christian Perwass | 概要 | Prof. Dr. Davide M. Proserpio (foreword): "This 'great software project', as it was called by Prof. Frank Hoffmann in his recent book [F. Hoffman, Introduction to Crystallography (2020) Springer Nature Switzerland AG], is very powerful and is an ideal support to teach how to read the International Tables in a more interactive way than usually taught. This collection of papers allows to follow the many possibility of the program to explore the richness of the space group symmetries and for the more math oriented may suggest further reading in geometric algebra, as pointed out recently in Acta Crystallographica." Inspired by the work of David Hestenes and his student Jeremy Holt representing point groups and space groups byway of conformal geometric algebra as learned in a lecture from David Hestenes at the international conference Applied Geometric Algebra in Computer Science and Engineering (AGACSE 2001) held in Trinity College of Cambridge, UK, ... | researchmap用URL | https://www.amazon.com/dp/B08YRYMPR5 | |
10. |
著書 |
Advances in Computer Graphics, Proceedings of 36th Computer Graphics International Conference, CGI 2019, Calgary, AB, Canada, June 17–20, 2019 Lecture Notes in Computer Science 11542 (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 単行本(学術書) | 招待論文 | 招待あり | 標題 | Advances in Computer Graphics, Proceedings of 36th Computer Graphics International Conference, CGI 2019, Calgary, AB, Canada, June 17–20, 2019 | 執筆形態 | 共編者 | 掲載誌名 | Lecture Notes in Computer Science | 掲載区分 | 国外 | 出版社・発行元 | Springer, New York | 巻・号・頁 | 11542 | 総ページ数 | 587 | 担当範囲 | Editing part of this conference proceedings. | 著者・共著者 | Gavrilova, M., Chang, J., Magnenat-Thalmann, N., Hitzer, E., Ishikawa, H. (eds.) | |
11. |
著書 |
Quaternion and Clifford Fourier Transforms and Wavelets (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 単行本(学術書) | 標題 | Quaternion and Clifford Fourier Transforms and Wavelets | 執筆形態 | 共編者 | 出版社・発行元 | Springer/Birkhauser | 著者・共著者 | Eckhard Hitzer and Stephen Sangwine | 概要 | Trends in Mathematics, Vol. 27 | |
12. |
著書 |
Proc. of the Symposium Innovative Teaching of Mathematics with Geometric Algebra 2003, Nov. 20-22, 2003, RIMS, University of Kyoto, Japan. Proc. of the Symposium Innovative Teaching of Mathematics with Geometric Algebra 2003 1378 (共著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | その他の書籍等出版物 | 標題 | Proc. of the Symposium Innovative Teaching of Mathematics with Geometric Algebra 2003, Nov. 20-22, 2003, RIMS, University of Kyoto, Japan. | 執筆形態 | 共編者 | 掲載誌名 | Proc. of the Symposium Innovative Teaching of Mathematics with Geometric Algebra 2003 | 掲載区分 | 国内 | 出版社・発行元 | Kyoto University RIMS. | 巻・号・頁 | 1378 | 担当範囲 | Part of editorial work. | 著者・共著者 | E. Hitzer, R. Nagaoka, H. Ishi | 概要 | E. Hitzer, R. Nagaoka, H. Ishi (work as editors), Proc. of the Symposium Innovative Teaching of Mathematics with Geometric Algebra 2003, Nov. 20-22, 2003, RIMS, University of Kyoto, Japan. Online edition: http://www.kurims.kyoto-u.ac.jp/~kyodo/kokyuroku/contents/1378.html . | |
13. |
論文 |
On Clifford Geometric Space-Time Algebras and Symmetries Trends in Mathematics, Research Perspectives Ghent Analysis and PDE Center 9 9 (単著) 2025/04 |
言語種別 | 英語 | 発行・発表の年月 | 2025/04 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | On Clifford Geometric Space-Time Algebras and Symmetries | 執筆形態 | 単著 | 掲載誌名 | Trends in Mathematics, Research Perspectives Ghent Analysis and PDE Center 9 | 掲載区分 | 国外 | 出版社・発行元 | SpringerNature/Birkhaeuser, Berlin | 巻・号・頁 | 9 | 総ページ数 | 8 | 担当範囲 | all | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | Eckhard Hitzer, On Clifford Geometric Space-Time Algebras and Symmetries, in N. Faustino, M. dos Santos Ferreira, U. Kaehler, N. Vieira (eds.), Hypercomplex Analysis and Its Applications - Extended Abstracts of the International Conference Celebrating Paula Cerejeiras 60th Birthday, Trends in Mathematics, Research Perspectives Ghent Analysis and PDE Center 9, SpringerNature/Birkhaeuser, Berlin, Chapter 9, 8 pages, April 2025. URL: https://link.springer.com/book/9783031868573, ISBN: 978-3-031-86857-3
Abstract: From viewpoints of crystallography and of elementary particles, we explore
symmetries of multivectors in the Clifford geometric algebras Cl(3,1) and
Cl(1,3) that can both be used to describe space-time. | researchmap用URL | https://link.springer.com/book/9783031868573 | |
14. |
論文 |
Properties of the Geometric Product of Two Oriented Points in Conformal Geometric Algebra Lecture Notes in Computer Science 15340,pp.1-13 (単著) 2025/04 |
言語種別 | 英語 | 発行・発表の年月 | 2025/04 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Properties of the Geometric Product of Two Oriented Points in Conformal Geometric Algebra | 執筆形態 | 単著 | 掲載誌名 | Lecture Notes in Computer Science | 掲載区分 | 国外 | 出版社・発行元 | Springer Nature Switzerland AG | 巻・号・頁 | 15340,pp.1-13 | 総ページ数 | 13 | 担当範囲 | all | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | Eckhard Hitzer, Properties of the Geometric Product of Two Oriented Points in Conformal Geometric Algebra, in N. Magnenat-Thalmann et al. (Eds.): Advances in Computer Graphics, CGI2024 Proceedings Part III, LNCS, Vol. 15340, pp.1–13 (4 April 2025), Chapter 29. Article DOI: https://doi.org/10.1007/978-3-031-82024-3_29
Abstract: In this work we report recently obtained results on the full
geometric product of two oriented points in conformal geometric algebra
Cl(4, 1) that models Euclidean space.We analyze its Cl(3, 0) multivector
coecients and their relationships. Moreover, we derive explicit formulas
for extracting from the geometric product of two oriented points both
the center position of the point pair and the radius vector of the point
pair (half of the point to point distance vector). Finally, we introduce a
simple direct method to obtain the two standard conformal points from
the geometric product of two oriented points. | researchmap用URL | https://doi.org/10.1007/978-3-031-82024-3_29 | |
15. |
論文 |
Geometric product of two oriented points in conformal geometric algebra Adv. Appl. Clifford Algebras 35,pp.1-16 (単著) 2024/11 |
言語種別 | 英語 | 発行・発表の年月 | 2024/11 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Geometric product of two oriented points in conformal geometric algebra | 執筆形態 | 単著 | 掲載誌名 | Adv. Appl. Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Springer Nature Switzerland AG | 巻・号・頁 | 35,pp.1-16 | 総ページ数 | 16 | 担当範囲 | all | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | Eckhard Hitzer, Geometric product of two oriented points in conformal geometric algebra, Adv. Appl. Clifford Algebras, 35:3, pp. 1-16 (15 Nov. 2024). DOI: https://doi.org/10.1007/s00006-024-01363-6 , Preprint: https://vixra.org/abs/2401.0058
Abstract: We compute and explore the full geometric product of two oriented points in conformal geometric algebra Cl(4, 1) of three-dimensional Euclidean space. We comment on the symmetry of the various components, and state for all expressions also a representation in terms of point pair center and radius vectors. | researchmap用URL | https://link.springer.com/article/10.1007/s00006-024-01363-6 | |
16. |
論文 |
On Symmetries of Geometric Algebra Cl(3,1) for Space-Time Adv. Appl. Clifford Algebras 34,pp.1-14 (単著) 2024/06 |
言語種別 | 英語 | 発行・発表の年月 | 2024/06 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | On Symmetries of Geometric Algebra Cl(3,1) for Space-Time | 執筆形態 | 単著 | 掲載誌名 | Adv. Appl. Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Springer Nature Switzerland AG | 巻・号・頁 | 34,pp.1-14 | 総ページ数 | 14 | 担当範囲 | all | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | Eckhard Hitzer, On Symmetries of Geometric Algebra Cl(3,1) for Space-Time, Adv. Appl. Clifford Algebras 34:30, 14 pages (20 June 2024). DOI: https://doi.org/10.1007/s00006-024-01331-0, Preprint: https://vixra.org/abs/2401.0125
Abstract: From viewpoints of crystallography and of elementary particles, we explore symmetries of multivectors in the geometric algebra Cl(3, 1) that can be used to describe space-time. | researchmap用URL | https://link.springer.com/article/10.1007/s00006-024-01331-0 | |
17. |
論文 |
Inner product of two oriented points in conformal geometric algebra in Detail Springer Proceedings in Mathematics & Statistics (単著) 2024 |
言語種別 | 英語 | 発行・発表の年月 | 2024 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Inner product of two oriented points in conformal geometric algebra in Detail | 執筆形態 | 単著 | 掲載誌名 | Springer Proceedings in Mathematics & Statistics | 掲載区分 | 国外 | 出版社・発行元 | Springer | 総ページ数 | 18 | 担当範囲 | all | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer, Inner product of two oriented points in conformal geometric algebra in Detail, accepted for D. DaSilva, D. Hildenbrand, E. Hitzer (eds.), Proceedings of ICACGA 2022, Springer Proceedings in Mathematics & Statistics, Springer, Heidelberg, 18 pages, expected 2024. Preprint: https://vixra.org/abs/2308.0129 | researchmap用URL | https://vixra.org/abs/2308.0129 | |
18. |
論文 |
Introduction to Geometric Algebra Springer Proceedings in Mathematics & Statistics (共著) 2024 |
言語種別 | 英語 | 発行・発表の年月 | 2024 | 形態種別 | 研究論文 | 標題 | Introduction to Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Springer Proceedings in Mathematics & Statistics | 掲載区分 | 国外 | 出版社・発行元 | Springer | 総ページ数 | 30 | 担当範囲 | Concept and most of the text | 担当区分 | 筆頭著者,責任著者 | 国際共著 | 国際共著 | 著者・共著者 | E. Hitzer, D. Hildenbrand | 原著者 | E. Hitzer, D. Hildenbrand | 概要 | E. Hitzer, D. Hildenbrand, Introduction to Geometric Algebra, accepted for D. DaSilva, D. Hildenbrand, E. Hitzer (eds.), Proceedings of ICACGA 2022, Springer Proceedings in Mathematics & Statistics, Springer, Heidelberg, 30 pages, publication expected 2024. | |
19. |
論文 |
Quadratic Phase Quaternion Domain Fourier Transform Lecture Notes in Computer Science, Vols. 14495-14498 (単著) 2024 |
言語種別 | 英語 | 発行・発表の年月 | 2024 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Quadratic Phase Quaternion Domain Fourier Transform | 執筆形態 | 単著 | 掲載誌名 | Lecture Notes in Computer Science, Vols. 14495-14498 | 掲載区分 | 国外 | 出版社・発行元 | Springer | 総ページ数 | 12 | 担当範囲 | all | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer, Quadratic Phase Quaternion Domain Fourier Transform, accepted for Proceedings of ENGAGE 2023, in Bin Sheng, Lei Bi, Jinman Kim, Nadia Magnenat Thalmann, Daniel Thalmann (eds.), Advances in Computer Graphics, 40th Computer Graphics International Conference, CGI 2023, Shanghai, China, August 28–September 1, 2023, Proceedings, Parts I-IV, Lecture Notes in Computer Science, Vols. 14495-14498, 12 pages, publication due Feb. 2024. | |
20. |
論文 |
Report on First Symposium of European Researchers in Japan Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. (共著) 2024 |
言語種別 | 英語 | 発行・発表の年月 | 2024 | 形態種別 | 会議報告等 | 招待論文 | 招待あり | 標題 | Report on First Symposium of European Researchers in Japan | 執筆形態 | 共著 | 掲載誌名 | Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 掲載区分 | 国外 | 出版社・発行元 | Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 総ページ数 | 4 | 担当範囲 | Most of the text | 担当区分 | 責任著者 | 著者・共著者 | W. Wunderlich, E. Hitzer | 原著者 | W. Wunderlich, E. Hitzer | 概要 | W. Wunderlich, E. Hitzer, Report on First Symposium of European Researchers in Japan, 4 pages, accepted for Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V., 2023 or 2024. | |
21. |
論文 |
Inner product of two oriented points in conformal geometric algebra Proceedings of ICACGA 2022, LNCS, SpringerNature 13771 (単著) 2023/12 |
言語種別 | 英語 | 発行・発表の年月 | 2023/12 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Inner product of two oriented points in conformal geometric algebra | 執筆形態 | 単著 | 掲載誌名 | Proceedings of ICACGA 2022, LNCS, SpringerNature | 掲載区分 | 国外 | 出版社・発行元 | SpringerNature | 巻・号・頁 | 13771 | 総ページ数 | 11 | 担当範囲 | all | 担当区分 | 筆頭著者,責任著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | Inner product of two oriented points in conformal geometric algebra, in D. DaSilva, D. Hildenbrand, E. Hitzer (eds.), Advanced Computational Applications of Geometric Algebra - First International Conference, ICACGA 2022, Colorado Springs, CO, USA, October 2-5, 2022, Proceedings, LNCS, SpringerNature, Vol. 13771, ISBN 978-3-031-34030-7, 11 pages, Springer, Cham, 24 Dec. 2023, Chapter 5. DOI: https://doi.org/10.1007/978-3-031-34031-4_5 | |
22. |
論文 |
Scientific Research – Opportunities and Pitfalls Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. (ドイツ語圏日本学術振興会研究者同窓会) 91(3),pp.9-12 (単著) 2023/12 |
言語種別 | 英語 | 発行・発表の年月 | 2023/12 | 形態種別 | 総説・解説(大学・研究所紀要) | 標題 | Scientific Research – Opportunities and Pitfalls | 執筆形態 | 単著 | 掲載誌名 | Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. (ドイツ語圏日本学術振興会研究者同窓会) | 掲載区分 | 国外 | 出版社・発行元 | Deutsche Gesellschaft der JSPS Stipendiaten e.V. (ドイツ語圏日本学術振興会研究者同窓会) | 巻・号・頁 | 91(3),pp.9-12 | 総ページ数 | 4 | 担当範囲 | all | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | Eckhard Hitzer, Scientific Research – Opportunities and Pitfalls, Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. (ドイツ語圏日本学術振興会研究者同窓会), Edition 91, No. 3, pp. 9-12, Dec. 2023. URL: https://www.jsps-club.de/en/publications/neues-vom-club/2023/03#c7561 | researchmap用URL | https://www.jsps-club.de/en/publications/neues-vom-club/2023/03#c7561 | |
23. |
論文 |
Special affine quaternion domain Fourier transform Proceedings of "GOL 2021: International Conference “Applied Category Theory Graph-Operad-Logic”, Professor Zbigniew Oziewicz in memoriam", 12 pp., in Book Series: Series on Knots and Everything (SKAE), World Scientific, Singapore 75,pp.537-552 (単著) 2023/10 |
言語種別 | 英語 | 発行・発表の年月 | 2023/10 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Special affine quaternion domain Fourier transform | 執筆形態 | 単著 | 掲載誌名 | Proceedings of "GOL 2021: International Conference “Applied Category Theory Graph-Operad-Logic”, Professor Zbigniew Oziewicz in memoriam", 12 pp., in Book Series: Series on Knots and Everything (SKAE), World Scientific, Singapore | 掲載区分 | 国外 | 出版社・発行元 | World Scientific, Singapore | 巻・号・頁 | 75,pp.537-552 | 総ページ数 | 16 | 担当範囲 | all | 担当区分 | 筆頭著者,責任著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer, Special affine quaternion domain Fourier transform, Hilda María Colín García, José de Jesús Cruz Guzmán, Louis H Kauffman, and Hanna Makaruk (eds.), Scientific Legacy of Professor Zbigniew Oziewicz, Series on Knots and Everything (SKAE), Vol. 75. World Scientific, Singapore, October 2023. pages 537–552, DOI: https://doi.org/10.1142/13275 | researchmap用URL | https://doi.org/10.1142/13275 | |
24. |
論文 |
Embedding of Octonion Fourier Transform in Geometric Algebra of R^3 and Polar Representations of Octonion Analytic Signals in Detail Mathematical Methods in the Applied Sciences (単著) 2023/09 |
言語種別 | 英語 | 発行・発表の年月 | 2023/09 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Embedding of Octonion Fourier Transform in Geometric Algebra of R^3 and Polar Representations of Octonion Analytic Signals in Detail | 執筆形態 | 単著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 総ページ数 | 17 | 担当範囲 | all | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | Embedding of Octonion Fourier Transform in Geometric Algebra of R^3 and Polar Representations of Octonion Analytic Signals in Detail, Mathematical Methods in the Applied Sciences, pp. 1-17, First published: 04 September 2023. DOI: 10.1002/mma.9639, URL: https://onlinelibrary.wiley.com/doi/10.1002/mma.9639 Preprint: https://vixra.org/abs/2308.0124 | researchmap用URL | https://vixra.org/abs/2308.0124 | |
25. |
論文 |
Survey of New Applications of Geometric Algebra Mathematical Methods in the Applied Sciences (共著) 2023/07 |
言語種別 | 英語 | 発行・発表の年月 | 2023/07 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Survey of New Applications of Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 総ページ数 | 21 | 担当範囲 | Conception, most writing and final editing | 担当区分 | 筆頭著者,責任著者 | 国際共著 | 国際共著 | 著者・共著者 | E. Hitzer, M. Kamarianakis, G. Papagiannakis, P. Vašík | 原著者 | E. Hitzer, M. Kamarianakis, G. Papagiannakis, P. Vašík | 概要 | E. Hitzer, M. Kamarianakis, G. Papagiannakis, P. Vašík, Survey of New Applications of Geometric Algebra, Mathematical Methods in the Applied Sciences/Early View, 21 pages, First published: 31 July 2023. DOI: https://doi.org/10.1002/mma.9575, Preprint: https://doi.org/10.22541/au.167687105.52780013/v1 , Full text share link: https://onlinelibrary.wiley.com/share/author/TNRNPQREN45UUXBVWDM5?target=10.1002/mma.9575 | researchmap用URL | https://onlinelibrary.wiley.com/share/author/TNRNPQREN45UUXBVWDM5?target=10.1002/mma.9575 | |
26. |
論文 |
Embedding of Octonion Fourier Transform in Geometric Algebra of R^3 and Polar Representations of Octonion Analytic Signals Lecture Notes in Computer Science 13862,pp.123-134 (単著) 2023/04 |
言語種別 | 英語 | 発行・発表の年月 | 2023/04 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Embedding of Octonion Fourier Transform in Geometric Algebra of R^3 and Polar Representations of Octonion Analytic Signals | 執筆形態 | 単著 | 掲載誌名 | Lecture Notes in Computer Science | 掲載区分 | 国外 | 出版社・発行元 | SpringerNatur | 巻・号・頁 | 13862,pp.123-134 | 総ページ数 | 12 | 担当範囲 | all | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer.,Embedding of Octonion Fourier Transform in Geometric Algebra of R3 and Polar Representations of Octonion Analytic Signals. In: Hitzer, E., Papagiannakis, G., Vasik, P. (eds) Empowering Novel Geometric Algebra for Graphics and Engineering. ENGAGE 2022. Lecture Notes in Computer Science, Vol. 13862, pp 123–134, Springer, Cham, 2023. DOI: https://doi.org/10.1007/978-3-031-30923-6_10 | researchmap用URL | https://doi.org/10.1007/978-3-031-30923-6_10 | |
27. |
論文 |
Special affine Fourier transform for space-time algebra signals in detail Advances in Applied Clifford Algebras 32:60(5),pp.1-18 (単著) 2022/10 |
言語種別 | 英語 | 発行・発表の年月 | 2022/10 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Special affine Fourier transform for space-time algebra signals in detail | 執筆形態 | 単著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhauser/SpringerNature | 巻・号・頁 | 32:60(5),pp.1-18 | 総ページ数 | 18 | 担当範囲 | all | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer, Special affine Fourier transform for space-time algebra signals in detail, Adv. Appl. Clifford Algebras, Vol. 32:60, Iss. 5, 18 pages (October 2022). DOI: https://doi.org/10.1007/s00006-022-01228-w, Preprint: https://vixra.org/pdf/2206.0072v1.pdf | researchmap用URL | https://doi.org/10.1007/s00006-022-01228-w | |
28. |
論文 |
Extending Lasenby's embedding of octonions in space-time algebra Cl(1,3), to all three- and four dimensional Clifford geometric algebras Cl(p,q), n=p+q=3,4 Mathematical Methods in the Applied Sciences Special Issue (単著) 2022/08 |
言語種別 | 英語 | 発行・発表の年月 | 2022/08 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Extending Lasenby's embedding of octonions in space-time algebra Cl(1,3), to all three- and four dimensional Clifford geometric algebras Cl(p,q), n=p+q=3,4 | 執筆形態 | 単著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | Special Issue | 総ページ数 | 24 | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. H.itzer Extending Lasenby's embedding of octonions in space-time algebra Cl(1,3), to all three- and four dimensional Clifford geometric algebras Cl(p,q), n=p+q=3,4, Mathematical Methods in the Applied Sciences, pp. 1-24 (Early View: 04 Aug. 2022), DOI: http://doi.org/10.1002/mma.8577, Preprint: https://vixra.org/abs/2202.0109 | researchmap用URL | http://doi.org/10.1002/mma.8577 | |
29. |
論文 |
Current Survey of Clifford Geometric Algebra Applications Mathematical Methods in the Applied Sciences Special Issue (共著) 2022/04 |
言語種別 | 英語 | 発行・発表の年月 | 2022/04 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Current Survey of Clifford Geometric Algebra Applications | 執筆形態 | 共著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | Special Issue | 総ページ数 | 31 | 担当範囲 | Most of the text | 担当区分 | 筆頭著者 | 国際共著 | 国際共著 | 著者・共著者 | Eckhard Hitzer, Carlile Lavor, Dietmar Hildenbrand | 原著者 | Eckhard Hitzer, Carlile Lavor, Dietmar Hildenbrand | 概要 | E. H.itzer, C. Lavor, D. Hildenbrand, Current Survey of Clifford Geometric Algebra Applications, Mathematical Methods in the Applied Sciences, 31 pages, (2022), DOI: https://onlinelibrary.wiley.com/doi/10.1002/mma.8316, Preprint: https://vixra.org/abs/2204.0062 | researchmap用URL | https://onlinelibrary.wiley.com/doi/10.1002/mma.8316 | |
30. |
論文 |
On Factorization of Multivectors in Cl(2,1), by Exponentials and Idempotents Mathematical Methods in the Applied Sciences 45(16),pp.9504-9519 (単著) 2022/04 |
言語種別 | 英語 | 発行・発表の年月 | 2022/04 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | On Factorization of Multivectors in Cl(2,1), by Exponentials and Idempotents | 執筆形態 | 単著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | 45(16),pp.9504-9519 | 総ページ数 | 16 | 担当範囲 | Everything | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | Eckhard Hitzer, On Factorization of Multivectors in Cl(2,1), by Exponentials and Idempotents, Mathematical Methods in the Applied Sciences, Vol. 45, Iss. 16, pp. 9504-9519, First published 24 April 2022, DOI: http://doi.org/10.1002/mma.8320, Preprint: https://vixra.org/abs/2204.0073
Abstract: In this paper, we consider general multivector elements of the Clifford algebra Cl(2,1) and look for possibilities to factorize multivectors into products of blades, idempotents, and exponentials, where the exponents are frequently blades of grades zero (scalar) to (pseudoscalar). We will succeed mostly, with a minor open case remaining. | researchmap用URL | https://onlinelibrary.wiley.com/doi/10.1002/mma.8320 | |
31. |
論文 |
New Applications of Clifford’s Geometric Algebra Adv. Appl. Clifford Algebras 32:17,pp.1-39 (共著) 2022/02 |
言語種別 | 英語 | 発行・発表の年月 | 2022/02 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | New Applications of Clifford’s Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Adv. Appl. Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | SpringerNature | 巻・号・頁 | 32:17,pp.1-39 | 総ページ数 | 39 | 担当範囲 | Most of the text | 担当区分 | 責任著者 | 国際共著 | 国際共著 | 著者・共著者 | S. Breuils, K. Tachibana, E. Hitzer | 原著者 | S. Breuils, K. Tachibana, E. Hitzer | 概要 | The new applications of Clifford’s geometric algebra surveyed in this paper include kinematics and robotics, computer graphics and animation, neural networks and pattern recognition, signal and image processing, applications of versors and orthogonal transformations, spinors and matrices, applied geometric calculus, physics, geometric algebra software and implementations, applications to discrete mathematics and topology, geometry and geographic information systems, encryption, and the representation of higher order curves and surfaces. | researchmap用URL | https://link.springer.com/article/10.1007/s00006-021-01196-7 | |
32. |
論文 |
On Factorization of Multivectors in Cl(3,0), Cl(1,2) and Cl(0,3), by Exponentials and Idempotents Complex Variables and Elliptic Equations (単著) 2021/12 |
言語種別 | 英語 | 発行・発表の年月 | 2021/12 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | On Factorization of Multivectors in Cl(3,0), Cl(1,2) and Cl(0,3), by Exponentials and Idempotents | 執筆形態 | 単著 | 掲載誌名 | Complex Variables and Elliptic Equations | 掲載区分 | 国外 | 出版社・発行元 | Taylor and Francis | 総ページ数 | 25 | 担当範囲 | Everything | 著者・共著者 | E. Hitzer | 概要 | In this paper we consider general multivector elements of Clifford algebras Cl(3,0), Cl(1,2) and Cl(0,3), and look for possibilities to factorize multivectors into products of blades, idempotents and exponentials, where the exponents are frequently blades of grades zero (scalar) to n (pseudoscalar). | researchmap用URL | https://www.tandfonline.com/doi/full/10.1080/17476933.2021.2001462 | |
33. |
論文 |
Foundations for strip adjustment of airborne laserscanning data with conformal geometric algebra Adv. Appl. Clifford Algebras 32(1),pp.1-34 (共著) 2021/11 |
言語種別 | 英語 | 発行・発表の年月 | 2021/11 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Foundations for strip adjustment of airborne laserscanning data with conformal geometric algebra | 執筆形態 | 共著 | 掲載誌名 | Adv. Appl. Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | SpringerNature | 巻・号・頁 | 32(1),pp.1-34 | 総ページ数 | 34 | 担当範囲 | Most of text and computations | 担当区分 | 筆頭著者 | 国際共著 | 国際共著 | 著者・共著者 | E. H.itzer, W. Benger, M. Niederwieser, R. Baran and F. Steinbacher | 原著者 | E. H.itzer, W. Benger, M. Niederwieser, R. Baran and F. Steinbacher | 概要 | Typically, airborne laserscanning includes a laser mounted on an airplane or drone (its pulsed beam direction can scan in flight direction and perpendicular to it) an intertial positioning system of gyroscopes, and a global navigation satellite system. The data, relative orientation and relative distance of these three systems are combined in computing strips of ground surface point locations in an earth fixed coordinate system. Finally, all laserscanning strips are combined via iterative closes point methods to an interactive three-dimensional terrain map. In this work we describe the mathematical framework for how to use the iterative closest point method for the adjustment of the airborne laserscanning data strips in the framework of conformal geometric algebra. | researchmap用URL | https://link.springer.com/article/10.1007/s00006-021-01184-x | |
34. |
論文 |
Special affine Fourier transform for space-time algebra signals Lecture Notes in Computer Science 13002,pp.658-669 (単著) 2021/10 |
言語種別 | 英語 | 発行・発表の年月 | 2021/10 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Special affine Fourier transform for space-time algebra signals | 執筆形態 | 単著 | 掲載誌名 | Lecture Notes in Computer Science | 掲載区分 | 国外 | 出版社・発行元 | SpringerNature | 巻・号・頁 | 13002,pp.658-669 | 総ページ数 | 12 | 担当範囲 | Everything | 著者・共著者 | E. Hitzer | 概要 | We generalize the space-time Fourier transform (SFT) [9] to a special affine Fourier transform (SASFT, also known as offset linear canonical transform) for 16-dimensional space-time multivector Cl(3, 1)-valued signals over the domain of space-time (Minkowski space) R3,1. We establish how it can be computed in terms of the SFT, and introduce its properties of multivector coefficient linearity, shift and modulation, inversion, Rayleigh (Parseval) energy theorem, partial derivative identities, a directional uncertainty principle and its specialization to coordinates. | researchmap用URL | https://link.springer.com/chapter/10.1007%2F978-3-030-89029-2_49 | |
35. |
論文 |
Introduction to Clifford’s Geometric Algebra Vixra.org preprint archive 2021 (共著) 2021/08 |
言語種別 | 英語 | 発行・発表の年月 | 2021/08 | 形態種別 | 研究論文 | 標題 | Introduction to Clifford’s Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Vixra.org preprint archive | 掲載区分 | 国外 | 出版社・発行元 | vixra.org | 巻・号・頁 | 2021 | 総ページ数 | 10 | 担当範囲 | Part of text and equations | 担当区分 | 最終著者,責任著者 | 国際共著 | 国際共著 | 著者・共著者 | S. Breuils, K. Tachibana, E. Hitzer | 原著者 | S. Breuils, K. Tachibana, E. Hitzer | 概要 | S. Breuils, K. Tachibana, E. Hitzer, Introduction to Clifford’s Geometric Algebra, 10 pp., 2021. Preprint URL: https://vixra.org/abs/2108.0145, last accessed: 27 Aug. 2021.
Abstract: A brief application-oriented introduction to W.K. Clifford's geometric algebras, including conformal geometric algebra (CGA). | researchmap用URL | https://vixra.org/abs/2108.0145 | |
36. |
論文 |
Generalized Uncertainty Principles associated with the Quaternionic Offset Linear Canonical Transform Complex Variables and Elliptic Equations (共著) 2021/04 |
言語種別 | 英語 | 発行・発表の年月 | 2021/04 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Generalized Uncertainty Principles associated with the Quaternionic Offset Linear Canonical Transform | 執筆形態 | 共著 | 掲載誌名 | Complex Variables and Elliptic Equations | 掲載区分 | 国外 | 出版社・発行元 | Taylor and Francis | 総ページ数 | 20 | 担当範囲 | part of computation, part of text | 著者・共著者 | Y. El Haoui, E.H.itzer | 概要 | The quaternionic offset linear canonical transform (QOLCT) can be defined as a generalization of the quaternionic linear canonical transform (QLCT). In this paper, we define the QOLCT, we derive the relationship between the QOLCT and the quaternion Fourier transform (QFT). Based on this fact, we prove the Rayleigh formula and some properties related to the QOLCT. Then, we generalize some different uncertainty principles (UPs), including Heisenberg-Weyl's UP, Hardy's UP, Beurling's UP, and logarithmic UP to the QOLCT domain. | researchmap用URL | https://www.tandfonline.com/doi/full/10.1080/17476933.2021.1916919 | |
37. |
論文 |
Report on 3rd Workshop on Sustainable University Development with Focus on Education and Management 22nd Feb. 2020, ICU Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. 2021(85/4),pp.3-6 (単著) 2021/04 |
言語種別 | 英語 | 発行・発表の年月 | 2021/04 | 形態種別 | 会議報告等 | 標題 | Report on 3rd Workshop on Sustainable University Development with Focus on Education and Management 22nd Feb. 2020, ICU | 執筆形態 | 単著 | 掲載誌名 | Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 掲載区分 | 国外 | 出版社・発行元 | JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 巻・号・頁 | 2021(85/4),pp.3-6 | 総ページ数 | 4 | 担当範囲 | All | 担当区分 | 筆頭著者,責任著者 | 国際共著 | 国際共著 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer, Report on 3rd Workshop on Sustainable University Development with Focus on Education and Management 22nd Feb. 2020, ICU, 4 pages. Also available as Preprint: https://vixra.org/pdf/2004.0183v1.pdf | researchmap用URL | https://www.jsps-club.de/veroeffentlichungen/neues-vom-club/2021/04#c6036 | |
38. |
論文 |
Strip adjustment of airborne laserscanning data with conformal geometric algebra Joint 11th Int. Conf. on Soft Comp. & Intell. Systems & 21st Int.Symp. on Adv. Intell.Sys SCIS-ISIS pp.1-6 (共著) 2020/12 |
言語種別 | 英語 | 発行・発表の年月 | 2020/12 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Strip adjustment of airborne laserscanning data with conformal geometric algebra | 執筆形態 | 共著 | 掲載誌名 | Joint 11th Int. Conf. on Soft Comp. & Intell. Systems & 21st Int.Symp. on Adv. Intell.Sys SCIS-ISIS | 掲載区分 | 国外 | 出版社・発行元 | IEEE | 巻・号・頁 | pp.1-6 | 総ページ数 | 6 | 担当範囲 | Computations and text | 著者・共著者 | E. Hitzer, W. Benger, M. Niederwieser, R. Baran and F. Steinbacher | 概要 | In this work we describe how to use the iterative closest point method for the adjustment of airborne laser scanning data strips in the framework of conformal geometric algebra, using rotors, translators, motors and differentiating w.r.t. bivector angles and translation vectors. | researchmap用URL | https://ieeexplore.ieee.org/document/9322694 | |
39. |
論文 |
Heisenberg's and Hardy's uncertainty principles for special relativistic Space-Time Fourier transformation Adv. Appl. Clifford Algebras 30(69),pp.1-29 (共著) 2020/09 |
言語種別 | 英語 | 発行・発表の年月 | 2020/09 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Heisenberg's and Hardy's uncertainty principles for special relativistic Space-Time Fourier transformation | 執筆形態 | 共著 | 掲載誌名 | Adv. Appl. Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | SpringerNature | 巻・号・頁 | 30(69),pp.1-29 | 総ページ数 | 29 | 担当範囲 | part of computations and text | 著者・共著者 | Youssef El Haoui, E. H.itzer, Said Fahlaoui | 概要 | The special relativistic (space-time) Fourier transform (SFT) in Clifford algebra Cl_{(3,1)} of space-time, first introduced from a mathematical point of view in Hitzer (Adv Appl Clifford Algebras 17:497–517, 2007), extends the quaternionic Fourier transform to functions, fields and signals in space-time. The purpose of this paper is to advance the study of the SFT and investigate important properties such as continuity, Plancherel identity, Riemann–Lebesgue lemma, and to establish the associated Hausdorff–Young inequality. Moreover, using the observer related space-time split several uncertainty inequalities are established, including Heisenberg’s uncertainty principle and Hardy’s theorem. | researchmap用URL | https://doi.org/10.1007/s00006-020-01093-5 | |
40. |
論文 |
Exponential Factorization of Multivectors in Cl(p,q), p+q < 3 Mathematical Methods in the Applied Sciences Early View,pp.1-15 (単著) 2020/07 |
言語種別 | 英語 | 発行・発表の年月 | 2020/07 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Exponential Factorization of Multivectors in Cl(p,q), p+q < 3 | 執筆形態 | 単著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | Early View,pp.1-15 | 総ページ数 | 15 | 担当範囲 | All | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer, Exponential Factorization of Multivectors in Cl(p,q), p+q < 3, Mathematical Methods in the Applied Sciences, pp. 1-15, First published: 15 July 2020. DOI: https://doi.org/10.1002/mma.6629. Preprint: https://vixra.org/pdf/2004.0408v2.pdf
Abstract: In this paper, we consider general multivector elements of Clifford algebras Cl(p,q), p+q<3, and study multivector factorization into products of exponentials and idempotents, where the exponents are blades of grades zero (scalar) to n (pseudoscalar). | researchmap用URL | https://onlinelibrary.wiley.com/doi/10.1002/mma.6629 | |
41. |
論文 |
First Steps of Vector Differential Calculus rxiv.org preprint archive (単著) 2020/06 |
言語種別 | 英語 | 発行・発表の年月 | 2020/06 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | First Steps of Vector Differential Calculus | 執筆形態 | 単著 | 掲載誌名 | rxiv.org preprint archive | 掲載区分 | 国外 | 出版社・発行元 | rxiv.org | 総ページ数 | 31 | 担当範囲 | Everything | 著者・共著者 | Eckhard Hitzer | 概要 | This pap er treats the fundamentals of the vector dierential calcu-
lus part of universal geometric calculus. Geometric calculus simplies
and unies the structure and notation of mathematics for all of science
and engineering, and for technological applications. In order to make the
treatment self-contained, I rst compile all imp ortant geometric algebra
relationships, which are necessary for vector dierential calculus. Then
dierentiation by vectors is intro duced and a host of ma jor vector dif-
ferential and vector derivative relationships is proven explicitly in a very
elementary step by step approach. The pap er is thus intended to serve
as reference material, giving details, which are usually skipp ed in more
advanced discussions of the sub ject matter. | researchmap用URL | https://rxiv.org/pdf/2006.0105v1.pdf | |
42. |
論文 |
Bericht über 3. Workshop zu Nachhaltiger Universitätsentwicklung mit Schwerpunkt auf Bildung und Verwaltung (SUDem2020) 22nd Feb. 2020, ICU Preprint archive vixra.org 2020 (単著) 2020/04 |
言語種別 | 英語 | 発行・発表の年月 | 2020/04 | 形態種別 | 会議報告等 | 標題 | Bericht über 3. Workshop zu Nachhaltiger Universitätsentwicklung mit Schwerpunkt auf Bildung und Verwaltung (SUDem2020) 22nd Feb. 2020, ICU | 執筆形態 | 単著 | 掲載誌名 | Preprint archive vixra.org | 掲載区分 | 国外 | 出版社・発行元 | vixra.org | 巻・号・頁 | 2020 | 総ページ数 | 4 | 担当範囲 | All | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer, Bericht über 3. Workshop zu Nachhaltiger Universitätsentwicklung mit Schwerpunkt auf Bildung und Verwaltung (SUDem2020) 22nd Feb. 2020, ICU, 4 pages, Language: German. Preprint: https://vixra.org/pdf/2004.0182v1.pdf | researchmap用URL | https://vixra.org/pdf/2004.0182v1.pdf | |
43. |
論文 |
第 3 回持続可能な大学の発展 「教育とマネージメント」 ( ワークショップ報告 2020 年 2 月 22 日 ), Vixra preprint server vixra.org 2020 (単著) 2020/04 |
言語種別 | 英語 | 発行・発表の年月 | 2020/04 | 形態種別 | 総説・解説(国際会議プロシーディングズ) | 標題 | 第 3 回持続可能な大学の発展 「教育とマネージメント」 ( ワークショップ報告 2020 年 2 月 22 日 ), | 執筆形態 | 単著 | 掲載誌名 | Vixra preprint server vixra.org | 掲載区分 | 国外 | 出版社・発行元 | Vixra.org | 巻・号・頁 | 2020 | 総ページ数 | 4 | 担当範囲 | All content | 担当区分 | 筆頭著者 | 国際共著 | 国際共著 | 著者・共著者 | Author: Eckhard Hitzer
Translators: 本報告の翻訳:萩原義久 、木村護郎クリストフ | 原著者 | Eckhard Hitzer | 概要 | E. Hitzer, 第 3 回持続可能な大学の発展 「教育とマネージメント」 ( ワークショップ報告 2020 年 2 月 22 日 ), 本報告の翻訳:萩原義久 、木村護郎クリストフ。4 pages, Japanese translation of report preprint submitted to Neues vom JSPS Club (German JSPS Alumni Association), March 2020, 9 images. Preprint (Japanese): https://vixra.org/pdf/2004.0180v1.pdf | researchmap用URL | https://www.vixra.org/pdf/2004.0180v1.pdf | |
44. |
論文 |
Invited review of “An Introduction to Clifford Algebras and Spinors. By Jayme Vaz, Jr. and Roldã o da Rocha, Jr. Oxford University Press, 2019. pp 256. Paperback, ISBN 9780198836285 price GBP 34.99.” Acta Crystallographica Section A: Foundations and Advances (ISSN 2053-2733) 76(2),pp.269-272 (単著) 2020 |
言語種別 | 英語 | 発行・発表の年月 | 2020 | 形態種別 | 総説・解説(学術雑誌) | 査読 | 査読あり | 標題 | Invited review of “An Introduction to Clifford Algebras and Spinors. By Jayme Vaz, Jr. and Roldã o da Rocha, Jr. Oxford University Press, 2019. pp 256. Paperback, ISBN 9780198836285 price GBP 34.99.” | 執筆形態 | 単著 | 掲載誌名 | Acta Crystallographica Section A: Foundations and Advances (ISSN 2053-2733) | 掲載区分 | 国外 | 出版社・発行元 | International Union of Crystallography | 巻・号・頁 | 76(2),pp.269-272 | 総ページ数 | 4 | 著者・共著者 | Eckhard Hitzer | 概要 | Invited review of “An Introduction to Clifford Algebras and Spinors. By Jayme Vaz, Jr. and Roldã o da Rocha, Jr. Oxford University Press, 2019. pp 256. Paperback, ISBN 9780198836285 price GBP 34.99.”, Acta Crystallographica Section A: Foundations and Advances (ISSN 2053-2733), Volume 76, Part 2, pages 269-272. URL: http://journals.iucr.org/a/issues/2020/02/00/xo0142/index.html, DOI: https://doi.org/10.1107/S2053273319017030 | researchmap用URL | https://journals.iucr.org/a/issues/2020/02/00/xo0142/index.html | |
45. |
論文 |
Polar decomposition of complexified quaternions and octonions Adv. Appl. Clifford Algebras 30(2:23),pp.1-12 (共著) 2020 |
言語種別 | 英語 | 発行・発表の年月 | 2020 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Polar decomposition of complexified quaternions and octonions | 執筆形態 | 共著 | 掲載誌名 | Adv. Appl. Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhauser | 巻・号・頁 | 30(2:23),pp.1-12 | 総ページ数 | 12 | 担当範囲 | Part of computations, part of text | 著者・共著者 | S. J. Sangwine, E. Hitzer | 概要 | S. J. Sangwine, E. Hitzer, Polar decomposition of complexified quaternions and octonions, Adv. Appl. Clifford Algebras 30(2):23 (2020), 12 pages. DOI: 10.1007/s00006-020-1048-y. Preprint: http://repository.essex.ac.uk/24443/ | researchmap用URL | https://link.springer.com/article/10.1007%2Fs00006-020-1048-y | |
46. |
論文 |
第 3 回持続可能な大学の発展 「教育とマネージメント」 ( ワークショップ報告 2020 年 2 月 22 日 ), 本報告の翻訳:萩原義久 、木村護郎クリストフ Preprint archive vixra.org (単著) 2020 |
言語種別 | 日本語 | 発行・発表の年月 | 2020 | 形態種別 | 会議報告等 | 標題 | 第 3 回持続可能な大学の発展 「教育とマネージメント」 ( ワークショップ報告 2020 年 2 月 22 日 ), 本報告の翻訳:萩原義久 、木村護郎クリストフ | 執筆形態 | 単著 | 掲載誌名 | Preprint archive vixra.org | 掲載区分 | 国外 | 出版社・発行元 | vixra.org | 総ページ数 | 4 | 著者・共著者 | Eckhard Hitzer | 概要 | 第 3 回持続可能な大学の発展 「教育とマネージメント」 ( ワークショップ報告 2020 年 2 月 22 日 ), 本報告の翻訳:萩原義久 、木村護郎クリストフ。4 pages, Japanese translation of report preprint submitted to Neues vom JSPS Club (German JSPS Alumni Association), March 2020, 9 images. Preprint (Japanese): https://vixra.org/pdf/2004.0180v1.pdf | researchmap用URL | https://vixra.org/pdf/2004.0180v1.pdf | |
47. |
論文 |
Book review of: Real spinorial groups - A short mathematical introduction Mathematical Reviews 2019 (単著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 書評,文献紹介等 | 招待論文 | 招待あり | 標題 | Book review of: Real spinorial groups - A short mathematical introduction | 執筆形態 | 単著 | 掲載誌名 | Mathematical Reviews | 掲載区分 | 国外 | 出版社・発行元 | American Mathematical Society | 巻・号・頁 | 2019 | 総ページ数 | 3 | 担当範囲 | all | 担当区分 | 筆頭著者,責任著者 | 著者・共著者 | Eckhard Hitzer | 概要 | E. Hitzer, book review of: Xambó-Descamps, Sebastià, Real spinorial groups - A short mathematical introduction, Springer Briefs in Mathematics, SBMAC SpringerBriefs, Springer, Cham, 2018, 161 pages. Mathematical Reviews, MR3839319 (https://mathscinet.ams.org/mathscinet/). | researchmap用URL | https://mathscinet.ams.org/mathscinet/ | |
48. |
論文 |
Book review. G. Kuby, R. Spaemann (forword), J. P. Kirchner (translation), The Global Sexual Revolution: Destruction of Freedom in the Name of Freedom, Angelico Press, Kettering, USA, 2015 Sophia Journal of European Studies 11,pp.125-135 (単著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 書評,文献紹介等 | 査読 | 査読あり | 標題 | Book review. G. Kuby, R. Spaemann (forword), J. P. Kirchner (translation), The Global Sexual Revolution: Destruction of Freedom in the Name of Freedom, Angelico Press, Kettering, USA, 2015 | 執筆形態 | 単著 | 掲載誌名 | Sophia Journal of European Studies | 掲載区分 | 国内 | 出版社・発行元 | Sophia University, Tokyo, Japan. | 巻・号・頁 | 11,pp.125-135 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | Open Access | |
49. |
論文 |
Conic and Cyclidic Sections in Double Conformal Geometric Algebra G_{8,2} with Computing and Visualization using Gaalop Mathematical Methods in the Applied Sciences 43(1),pp.334-357 (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Conic and Cyclidic Sections in Double Conformal Geometric Algebra G_{8,2} with Computing and Visualization using Gaalop | 執筆形態 | 共著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | 43(1),pp.334-357 | 総ページ数 | 24 | 担当範囲 | Part of text and part of computations. | 著者・共著者 | Robert B. Easter, Eckhard Hitzer | 概要 | R.B. Easter, E. Hitzer, Conic and Cyclidic Sections in Double Conformal Geometric Algebra G_{8,2} with Computing and Visualization using Gaalop, Mathematical Methods in the Applied Sciences, 43(1), pp. 334-357, 2020. DOI: 10.1002/mma.5887. | researchmap用URL | https://onlinelibrary.wiley.com/doi/pdf/10.1002/mma.5887 | |
50. |
論文 |
Conic and Cyclidic Sections in Double Conformal Geometric Algebra G_{8,2} with Computing and Visualization using Gaalop, Mathematical Methods in the Applied Sciences Mathematical Methods in the Applied Sciences (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Conic and Cyclidic Sections in Double Conformal Geometric Algebra G_{8,2} with Computing and Visualization using Gaalop, Mathematical Methods in the Applied Sciences | 執筆形態 | 共著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 担当範囲 | Part of text and computations. | 著者・共著者 | Robert B. Easter, Eckhard Hitzer | 概要 | DOI: 10.1002/mma.5887 | |
51. |
論文 |
Conic Conformal Geometric Algebra and Simplified Versors for Rotation, Translation and Scaling Adv. of App. Cliff. Algs. 29(5),pp.96:1-96:16 (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Conic Conformal Geometric Algebra and Simplified Versors for Rotation, Translation and Scaling | 執筆形態 | 共著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 29(5),pp.96:1-96:16 | 担当範囲 | Most of text and computations. | 著者・共著者 | Eckhard Hitzer, Stephen J. Sangwine | |
52. |
論文 |
Construction of multivector inverse for Clifford algebras over $2m+1$-dimensional vector spaces from multivector inverse for Clifford algebras over $2m$-dimensional vector spaces Adv. of App. Cliff. Algs. 29(2),pp.29:1-29:22 (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Construction of multivector inverse for Clifford algebras over $2m+1$-dimensional vector spaces from multivector inverse for Clifford algebras over $2m$-dimensional vector spaces | 執筆形態 | 共著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 29(2),pp.29:1-29:22 | 担当範囲 | Symbolic algebraic computations and part of text. | 著者・共著者 | Eckhard Hitzer, Stephen J. Sangwine | |
53. |
論文 |
Cubic Curves and Cubic Surfaces from Contact Points in Conformal Geometric Algebra Proceedings of Workshop ENGAGE 2019 at CGI 2019 with Springer LNCS, April 2019 11542,pp.535-545 (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Cubic Curves and Cubic Surfaces from Contact Points in Conformal Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Proceedings of Workshop ENGAGE 2019 at CGI 2019 with Springer LNCS, April 2019 | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 11542,pp.535-545 | 担当範囲 | Most of computations and text. | 著者・共著者 | Eckhard Hitzer, Dietmar Hildenbrand | 概要 | in M. Gavrilova et al (eds.), Proceedings of Workshop ENGAGE 2019 at CGI 2019 with Springer LNCS, volume 11542, April 2019. In: Advances in Computer Graphics - 36th Computer Graphics International Conference, CGI 2019, Calgary, AB, Canada, June 17-20, 2019, Proceedings. 2019, pp. 535–545. DOI: 10.1007/978-3-030-22514-8\_53 | |
54. |
論文 |
Exponential Factorization and Polar Decomposition of Multivectors in Cl(p,q), p+q <= 3 Preprint archive vixra.org (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | Exponential Factorization and Polar Decomposition of Multivectors in Cl(p,q), p+q <= 3 | 執筆形態 | 共著 | 掲載誌名 | Preprint archive vixra.org | 掲載区分 | 国外 | 出版社・発行元 | vixra.org | 総ページ数 | 18 | 担当範囲 | Part of computations, part of text | 著者・共著者 | Eckhard Hitzer, Stephen J. Sangwine | 概要 | E. Hitzer, S.J. Sangwine, Exponential Factorization and Polar Decomposition of Multivectors in Cl(p,q), p+q <= 3, 18 pages, Nov. 2019. Preprint: https://vixra.org/pdf/1911.0275v2.pdf | researchmap用URL | https://vixra.org/pdf/1911.0275v2.pdf | |
55. |
論文 |
Feature Extraction using Conformal Geometric Algebra for AdaBoost Algorithm based In-plane Rotated Face Detection Adv. of App. Cliff. Algs. 29(4),pp.61:1-61:19 (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Feature Extraction using Conformal Geometric Algebra for AdaBoost Algorithm based In-plane Rotated Face Detection | 執筆形態 | 共著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 29(4),pp.61:1-61:19 | 担当範囲 | Part of text. | 著者・共著者 | Tuan M. Pham, Danh C. Doan & Eckhard Hitzer | 概要 | Adv. of App. Cliff. Algs. 29(4):61 (First Online: 02 July 2019), 19 pages, DOI: 10.1007/s00006-019-0976-x | |
56. |
論文 |
Foundations of Conic Conformal Geometric Algebra and Compact Versors for Rotation, Translation and Scaling Adv. of App. Cliff. Algs. 29(5:96),pp.1-16 (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Foundations of Conic Conformal Geometric Algebra and Compact Versors for Rotation, Translation and Scaling | 執筆形態 | 共著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhauser | 巻・号・頁 | 29(5:96),pp.1-16 | 総ページ数 | 16 | 担当範囲 | Theory, equations, text | 著者・共著者 | Eckhard Hitzer, Stephen J. Sangwine | 概要 | E. Hitzer, S.J. Sangwine, Foundations of Conic Conformal Geometric Algebra and Compact Versors for Rotation, Translation and Scaling, Adv. of App. Cliff. Algs., (2019) 29(5):96 (First Online: 04 October 2019), 16 pages, DOI: 10.1007/s00006-019-1016-6. Preprint: http://vixra.org/pdf/1905.0030v2.pdf | researchmap用URL | https://link.springer.com/article/10.1007%2Fs00006-019-1016-6 | |
57. |
論文 |
Generalized Uncertainty Principles associated with the Quaternionic Offset Linear CanonicalTransform Preprint archive arxiv.org (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | Generalized Uncertainty Principles associated with the Quaternionic Offset Linear CanonicalTransform | 執筆形態 | 共著 | 掲載誌名 | Preprint archive arxiv.org | 掲載区分 | 国外 | 出版社・発行元 | Cornell University | 総ページ数 | 15 | 担当範囲 | Part of computation, part of text | 著者・共著者 | Youssef El Haoui, Said Fahlaoui, Eckhard Hitzer | 概要 | Youssef El Haoui, Said Fahlaoui, Eckhard Hitzer, Generalized Uncertainty Principles associated with the Quaternionic Offset Linear CanonicalTransform, 15 pages, Sep. 2019. Preprint: https://arxiv.org/pdf/1807.04068.pdf | researchmap用URL | https://arxiv.org/pdf/1807.04068.pdf | |
58. |
論文 |
Polar decomposition of complexified quaternions and octonions Technical Report, University of Essex, UK (CES-535),pp.1-8 (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | Polar decomposition of complexified quaternions and octonions | 執筆形態 | 共著 | 掲載誌名 | Technical Report, University of Essex, UK | 掲載区分 | 国外 | 出版社・発行元 | University of Essex, UK | 巻・号・頁 | (CES-535),pp.1-8 | 担当範囲 | Part of text and computations. | 著者・共著者 | Stephen J. Sangwine, Eckhard Hitzer | 概要 | We present a hitherto unknown polar representation of complexified quaternions (also known asbiquaternions), also applicable to complexified octonions. The complexified quaternion is factored intothe product of two exponentials, one trigonometric or circular, and one hyperbolic. The trigonometricexponential is a real quaternion, the hyperbolic exponential has a real scalar part and imaginary vectorpart. This factorisation is shown to be isomorphic to the polar decomposition of linear algebra. | |
59. |
論文 |
Report on Visit of Architects Sitka and Kaserer in Saalfelden, and Social Center Pillertal in Fieberbrunn Near St. Johann, in Tyrol, Austria, We. 13 Mar. 2019 Preprint server Vixra.org, category Social Science pp.1-6 (単著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | Report on Visit of Architects Sitka and Kaserer in Saalfelden, and Social Center Pillertal in Fieberbrunn Near St. Johann, in Tyrol, Austria, We. 13 Mar. 2019 | 執筆形態 | 単著 | 掲載誌名 | Preprint server Vixra.org, category Social Science | 掲載区分 | 国外 | 出版社・発行元 | Vixra.org | 巻・号・頁 | pp.1-6 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | Part I. At the architect’s office Sitka and Kaserer, describes a meeting with Mr. A. Planegger, the architect of the Social Center Pillerseetal in Fieberbrunn, which is constructed with prefabricated modern cross laminated timber (CLT) modules, sustainable, cost efficient, and highly energy efficient. Part II: Visit of the Social Center Pillerseetal, describes a tour through the Social Center, guided by Director of Care Mr. Herbert Breitmayer. The biggest discovery is the unbelievable success of consequently putting Dr. Maria Riedl's "Integrative Care Concept" into practice. | |
60. |
論文 |
Special relativistic Fourier transformation and convolutions Mathematical Methods in the Applied Sciences 42(7),pp.2244-2255 (単著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Special relativistic Fourier transformation and convolutions | 執筆形態 | 単著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | 42(7),pp.2244-2255 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | Mathematical Methods in the Applied Sciences, First published: 04 Mar. 2019, Vol. 42, Issue 7, pp. 2244–2255, 2019, DOI: 10.1002/mma.5502 | |
61. |
論文 |
Three-dimensional quadrics in conformal geometric algebras and their versor transformations Adv. of App. Cliff. Algs. 29(3:46),pp.1-16 (単著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Three-dimensional quadrics in conformal geometric algebras and their versor transformations | 執筆形態 | 単著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhauser | 巻・号・頁 | 29(3:46),pp.1-16 | 総ページ数 | 16 | 担当範囲 | Whole work. | 著者・共著者 | Eckhard Hitzer | 概要 | [8] E. H. Three-dimensional quadrics in conformal geometric algebras and their versor transformations, Adv. of App. Cliff. Algs., 29(3):46, pp. 1-16, 2019. DOI: 10.1007/s00006-019-0964-1, preprint: http://vixra.org/pdf/1902.0401v4.pdf | researchmap用URL | http://vixra.org/pdf/1902.0401v4.pdf | |
62. |
論文 |
Three-dimensional quadrics in extended conformal geometric algebras of higher dimensions from control points, implicit equations and axis alignment Adv. of App. Cliff. Algs. 29(3),pp.57:1-57:22 (共著) 2019 |
言語種別 | 英語 | 発行・発表の年月 | 2019 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Three-dimensional quadrics in extended conformal geometric algebras of higher dimensions from control points, implicit equations and axis alignment | 執筆形態 | 共著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 29(3),pp.57:1-57:22 | 担当範囲 | Part of computations and part of text. | 著者・共著者 | S. Breuils, L. Fuchs, E. Hitzer, V. Nozick and A. Sugimoto | 概要 | DOI: 10.1007/s00006-019-0974-z | |
63. |
論文 |
Offene Vorlesung am 4. Juni 2018 an der International Christian University in Tokyo zu „Building Energy Efficiency, Frameworks in Germany and Europe, Progress in Germany since 1970ies (oil crisis)“ und Executive Luncheon unterstützt vom JSPS-Club Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. 2018(72/3),pp.8-9 (単著) 2018/03 |
言語種別 | 英語 | 発行・発表の年月 | 2018/03 | 形態種別 | 総説・解説(商業誌) | 標題 | Offene Vorlesung am 4. Juni 2018 an der International Christian University in Tokyo zu „Building Energy Efficiency, Frameworks in Germany and Europe, Progress in Germany since 1970ies (oil crisis)“ und Executive Luncheon unterstützt vom JSPS-Club | 執筆形態 | 単著 | 掲載誌名 | Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 掲載区分 | 国外 | 出版社・発行元 | Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 巻・号・頁 | 2018(72/3),pp.8-9 | 総ページ数 | 2 | 担当範囲 | Everything. | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | 概要 | Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V., Nr. 03 / 2018, Ausgabe 72, pp. 8-9. Open Access: https://www.jsps-club.de/veroeffentlichungen/neues-vom-club/2018/03/ , PDF: https://www.jsps-club.de/fileadmin/veroeffentlichungen/2018_NvC/2018_03_NvC.pdf | researchmap用URL | https://www.jsps-club.de/fileadmin/veroeffentlichungen/2018_NvC/2018_03_NvC.pdf | |
64. |
論文 |
Application of Conformal Geometric Algebra to In-plane Rotated Face Detection by AdaBoost-based Algorithm Early Proceedings of the AGACSE 2018 Conference pp.117-126 (共著) 2018 |
言語種別 | 英語 | 発行・発表の年月 | 2018 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Application of Conformal Geometric Algebra to In-plane Rotated Face Detection by AdaBoost-based Algorithm | 執筆形態 | 共著 | 掲載誌名 | Early Proceedings of the AGACSE 2018 Conference | 掲載区分 | 国外 | 出版社・発行元 | ISBN: 978-84-9880-703-5, Printed in Barcelona (Spain), 2018 | 巻・号・頁 | pp.117-126 | 担当範囲 | Part of text and structure. | 著者・共著者 | [11] T. M. Pham. D. C. Doan, E. Hitzer | 概要 | in Early Proceedings of the AGACSE 2018 Conference, Edt. by S. XAMBÓ-DESCAMPS, C. LAVOR, L. A. FERNANDES, M. JARDIM, ISBN: 978-84-9880-703-5, Printed in Barcelona (Spain), 2018, pp. 117-126. Open Access | |
65. |
論文 |
European Trends in Wood Biomass Energy Cogeneration Sophia Journal of European Studies 10,pp.191-205 (単著) 2018 |
言語種別 | 英語 | 発行・発表の年月 | 2018 | 形態種別 | 研究論文(大学,研究機関紀要) | 査読 | 査読あり | 標題 | European Trends in Wood Biomass Energy Cogeneration | 執筆形態 | 単著 | 掲載誌名 | Sophia Journal of European Studies | 掲載区分 | 国内 | 出版社・発行元 | Sophia University, Tokyo, Japan | 巻・号・頁 | 10,pp.191-205 | 担当範囲 | Everything | 著者・共著者 | Eckhard Hitzer | |
66. |
論文 |
Quadric Conformal Geometric Algebra of R^{9,6} Adv. of App. Cliff. Algs. 28(2),pp.35:1-35:16 (共著) 2018 |
言語種別 | 英語 | 発行・発表の年月 | 2018 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Quadric Conformal Geometric Algebra of R^{9,6} | 執筆形態 | 共著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 28(2),pp.35:1-35:16 | 担当範囲 | Algebraic framework, part of text | 著者・共著者 | [14] S. Breuils, V. Nozick, A. Sugimoto, E.Hitzer | 概要 | DOI: https://doi.org/10.1007/s00006-018-0851-1 | |
67. |
論文 |
Renewable Energy and Energy Efficiency for Japanese RE100 Universities program of 3rd Japanese-German Workshop on Renewable Energies, Tokyo, Japan, 17-19 Oct. 2018. (単著) 2018 |
言語種別 | 英語 | 発行・発表の年月 | 2018 | 形態種別 | 研究発表要旨(国際会議) | 標題 | Renewable Energy and Energy Efficiency for Japanese RE100 Universities | 執筆形態 | 単著 | 掲載誌名 | program of 3rd Japanese-German Workshop on Renewable Energies, Tokyo, Japan, 17-19 Oct. 2018. | 掲載区分 | 国内 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | Abstract No. 1-20 in program of 3rd Japanese-German Workshop on Renewable Energies, Tokyo, Japan, 17-19 Oct. 2018. | |
68. |
論文 |
Three-dimensional quadrics in hybrid conformal geometric algebra of higher dimensions Early Proceedings of the AGACSE 2018 Conference (単著) 2018 |
言語種別 | 英語 | 発行・発表の年月 | 2018 | 形態種別 | 研究論文 | 査読 | 査読あり | 招待論文 | 招待あり | 標題 | Three-dimensional quadrics in hybrid conformal geometric algebra of higher dimensions | 執筆形態 | 単著 | 掲載誌名 | Early Proceedings of the AGACSE 2018 Conference | 掲載区分 | 国外 | 出版社・発行元 | ISBN: 978-84-9880-703-5, Printed in Barcelona (Spain), 2018 | 担当範囲 | Everything | 著者・共著者 | Eckhard Hitzer | 概要 | in Early Proceedings of the AGACSE 2018 Conference, Edt. by S. XAMBÓ-DESCAMPS, C. LAVOR, L. A. FERNANDES, M. JARDIM, ISBN: 978-84-9880-703-5, Printed in Barcelona (Spain), 2018, pp. 17-26. Open Access | |
69. |
論文 |
Triple Conformal Geometric Algebra for Cubic Plane Curves Mathematical Methods in the Applied Sciences 41(11),pp.4088-4105 (共著) 2018 |
言語種別 | 英語 | 発行・発表の年月 | 2018 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Triple Conformal Geometric Algebra for Cubic Plane Curves | 執筆形態 | 共著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | 41(11),pp.4088-4105 | 担当範囲 | Part of: computations and text. | 著者・共著者 | Robert Benjamin Easter, Eckhard Hitzer | 概要 | DOI: 10.1002/mma.4597 | |
70. |
論文 |
Workshop Sustainable University Development mit Fokus auf Energieeffizienz (SUDee2018) an der International Christian University Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. 72(3),pp.10-11 (単著) 2018 |
言語種別 | 英語 | 発行・発表の年月 | 2018 | 形態種別 | 会議報告等 | 標題 | Workshop Sustainable University Development mit Fokus auf Energieeffizienz (SUDee2018) an der International Christian University | 執筆形態 | 単著 | 掲載誌名 | Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 掲載区分 | 国外 | 出版社・発行元 | Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 巻・号・頁 | 72(3),pp.10-11 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
71. |
論文 |
SUDre - Workshop über nachhaltige universitäre Energieversorgung in Mitaka/Tōkyō (German) Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. 2017(68/3),pp.3-5 (共著) 2017/03 |
言語種別 | 英語 | 発行・発表の年月 | 2017/03 | 形態種別 | 総説・解説(国際会議プロシーディングズ) | 標題 | SUDre - Workshop über nachhaltige universitäre Energieversorgung in Mitaka/Tōkyō (German) | 執筆形態 | 共著 | 掲載誌名 | Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 掲載区分 | 国外 | 出版社・発行元 | Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 巻・号・頁 | 2017(68/3),pp.3-5 | 総ページ数 | 3 | 担当範囲 | Most part of text. | 担当区分 | 最終著者 | 国際共著 | 国際共著 | 著者・共著者 | O. Karthaus, W. Wunderlich, E. Hitzer | 原著者 | O. Karthaus, W. Wunderlich, E. Hitzer | 概要 | O. Karthaus, W. Wunderlich, E. Hitzer, SUDre - Workshop über nachhaltige universitäre Energieversorgung in Mitaka/Tōkyō (German), Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V., Nr. 03 / 2017, Ausgabe 68, pp. 3-5. Open Access: https://www.jsps-club.de/veroeffentlichungen/neues-vom-club/2017/03/ , PDF: https://www.jsps-club.de/fileadmin/veroeffentlichungen/2017_NvC/2017_03_NvC.pdf | researchmap用URL | https://www.jsps-club.de/fileadmin/veroeffentlichungen/2017_NvC/2017_03_NvC.pdf | |
72. |
論文 |
Double Conformal Geometric Algebra Adv. of App. Cliff. Algs. 27(3),pp.2175-2199 (共著) 2017 |
言語種別 | 英語 | 発行・発表の年月 | 2017 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Double Conformal Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 巻・号・頁 | 27(3),pp.2175-2199 | 担当範囲 | Part of: computations and text. | 著者・共著者 | Robert Benjamin Easter, Eckhard Hitzer | 概要 | DOI: 10.1007/s00006-017-0784-0 | |
73. |
論文 |
Double Conformal Space-Time Algebra AIP Conf. Proc. 1798(020066),pp.1-10 (共著) 2017 |
言語種別 | 英語 | 発行・発表の年月 | 2017 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Double Conformal Space-Time Algebra | 執筆形態 | 共著 | 掲載誌名 | AIP Conf. Proc. | 掲載区分 | 国外 | 出版社・発行元 | American Institute of Physics Publishing | 巻・号・頁 | 1798(020066),pp.1-10 | 担当範囲 | Algebraic computations and text (shared). | 著者・共著者 | Robert Benjamin Easter, Eckhard Hitzer | 概要 | S. Sivasundaram (ed.), International Conference in Nonlinear Problems in Aviation and Aerospace ICNPAA 2016,
DOI: 10.1063/1.4972658 | |
74. |
論文 |
General one-sided Clifford Fourier transform, convolution products in the spatial and frequency domains, and auto-correlation theorems Proceedings of the 17th International Conference on Computational and Math. Methods in Sci. and Eng. pp.1042-1053 (単著) 2017 |
言語種別 | 英語 | 発行・発表の年月 | 2017 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | General one-sided Clifford Fourier transform, convolution products in the spatial and frequency domains, and auto-correlation theorems | 執筆形態 | 単著 | 掲載誌名 | Proceedings of the 17th International Conference on Computational and Math. Methods in Sci. and Eng. | 掲載区分 | 国外 | 巻・号・頁 | pp.1042-1053 | 著者・共著者 | Eckhard Hitzer | |
75. |
論文 |
General steerable two-sided Clifford Fourier transform, convolution and Mustard convolution Adv. of App. Cliff. Algs. 27(1),pp.2215-2234 (単著) 2017 |
言語種別 | 英語 | 発行・発表の年月 | 2017 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | General steerable two-sided Clifford Fourier transform, convolution and Mustard convolution | 執筆形態 | 単著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland | 巻・号・頁 | 27(1),pp.2215-2234 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
76. |
論文 |
General two-sided quaternion Fourier transform, convolution and Mustard convolution Adv. of App. Cliff. Algs. 27(1),pp.381-395 (単著) 2017 |
言語種別 | 英語 | 発行・発表の年月 | 2017 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | General two-sided quaternion Fourier transform, convolution and Mustard convolution | 執筆形態 | 単著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland | 巻・号・頁 | 27(1),pp.381-395 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | DOI: 10.1007/s00006-016-0684-8 | |
77. |
論文 |
Multivector and multivector matrix inverses in real Clifford algebras Appl. Math. and Comp. 311(C),pp.375-389 (共著) 2017 |
言語種別 | 英語 | 発行・発表の年月 | 2017 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Multivector and multivector matrix inverses in real Clifford algebras | 執筆形態 | 共著 | 掲載誌名 | Appl. Math. and Comp. | 掲載区分 | 国外 | 出版社・発行元 | Elsevier | 巻・号・頁 | 311(C),pp.375-389 | 担当範囲 | Algebraic computations and text. | 著者・共著者 | Eckhard Hitzer, Stephen J. Sangwine | 概要 | DOI: 10.1016/j.amc.2017.05.027 | |
78. |
論文 |
Quaternionic Wiener-Khinchine theorems and spectral representation of convolution with steerable two-sided quaternion Fourier transform Adv. of App. Cliff. Algs. 27(2),pp.1313-1328 (単著) 2017 |
言語種別 | 英語 | 発行・発表の年月 | 2017 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Quaternionic Wiener-Khinchine theorems and spectral representation of convolution with steerable two-sided quaternion Fourier transform | 執筆形態 | 単著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland | 巻・号・頁 | 27(2),pp.1313-1328 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | DOI: 10.1007/s00006-016-0744-0 | |
79. |
論文 |
SUDre - Workshop über nachhaltige universitäre Energieversorgung in Mitaka/Tōkyō (German) Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. 68(3),3-5頁 (共著) 2017 |
言語種別 | ドイツ語 | 発行・発表の年月 | 2017 | 形態種別 | 会議報告等 | 標題 | SUDre - Workshop über nachhaltige universitäre Energieversorgung in Mitaka/Tōkyō (German) | 執筆形態 | 共著 | 掲載誌名 | Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 掲載区分 | 国外 | 出版社・発行元 | Deutsche Gesellschaft der JSPS Stipendiaten e.V. | 巻・号・頁 | 68(3),3-5頁 | 著者・共著者 | [107] O. Karthaus, W. Wunderlich, E. Hitzer | 概要 | Neues vom JSPS-Club, Deutsche Gesellschaft der JSPS Stipendiaten e.V., Nr. 03 / 2017, Ausgabe 68, pp. 3-5. Open Access: https://www.jsps-club.de/veroeffentlichungen/neues-vom-club/2017/03/ , PDF: https://www.jsps-club.de/fileadmin/veroeffentlichungen/2017_NvC/2017_03_NvC.pdf | |
80. |
論文 |
Christ Centered Stewardship for the Environment Vixra Preprint Server, General Science and Philosophy. (単著) 2016 |
言語種別 | 英語 | 発行・発表の年月 | 2016 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 査読 | 査読あり | 標題 | Christ Centered Stewardship for the Environment | 執筆形態 | 単著 | 掲載誌名 | Vixra Preprint Server, General Science and Philosophy. | 掲載区分 | 国外 | 出版社・発行元 | Vixra Preprint Server. | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | The recent Encyclical Laudato Si by Pope Francis also highlights environmental stewardship in broad terms. In contrast to this generality, our reflections particularly advance with a fresh look at the person of Christ, his role in the creation of our world as portrayed in the Bible, the origin and commission of man, and the relation of man and Christ. In this triangle of Christ, world and man, all three are appear related in the principle of Christ centered stewardship (of man) for the (created) environment. To gain insight we review some essential Biblical passage from both the Old and New Testaments. The second half of this work endeavors initial application in the fields of purchasing, building, energy, policy and education. Our approach is that of a natural scientist (of theoretical physics) and convinced Christian with interest in environmental questions. | |
81. |
論文 |
Clifford Multivector Toolbox (for MATLAB) Adv. of App. Cliff. Algs. (共著) 2016 |
言語種別 | 英語 | 発行・発表の年月 | 2016 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Clifford Multivector Toolbox (for MATLAB) | 執筆形態 | 共著 | 掲載誌名 | Adv. of App. Cliff. Algs. | 掲載区分 | 国外 | 出版社・発行元 | Birkhauser / Springer | |
82. |
論文 |
Conic and Cyclidic Sections in Double Conformal Geometric Algebra G8,2 Proceedings of 計測自動制御学会システム・情報部門学術講演会2016 (SSI 2016), Session SS11 pp.866-871 (共著) 2016 |
言語種別 | 英語 | 発行・発表の年月 | 2016 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 標題 | Conic and Cyclidic Sections in Double Conformal Geometric Algebra G8,2 | 執筆形態 | 共著 | 掲載誌名 | Proceedings of 計測自動制御学会システム・情報部門学術講演会2016 (SSI 2016), Session SS11 | 掲載区分 | 国内 | 出版社・発行元 | The Society of Instrument and Control Engineers, Japan | 巻・号・頁 | pp.866-871 | 担当範囲 | Part of computations and text. | 著者・共著者 | Robert B. Easter, Eckhard Hitzer | 概要 | Proceedings of 計測自動制御学会システム・情報部門学術講演会2016 (SSI 2016), Session SS11, pp. 866-871, 6-8 Dec. 2016, Otsu, Shiga, Japan. | |
83. |
論文 |
Double Conformal Geometric Algebra for Quadrics and Darboux Cyclides Association for Computing Machinery Digital Library pp.93-96 (共著) 2016 |
言語種別 | 英語 | 発行・発表の年月 | 2016 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Double Conformal Geometric Algebra for Quadrics and Darboux Cyclides | 執筆形態 | 共著 | 掲載誌名 | Association for Computing Machinery Digital Library | 掲載区分 | 国外 | 出版社・発行元 | Association for Computing Machinery | 巻・号・頁 | pp.93-96 | 担当範囲 | Algebraic computations. | 著者・共著者 | Robert Benjamin Easter, Eckhard Hitzer | 概要 | CGI '16, Proceedings of the 33rd Computer Graphics International,
DOI: 10.1145/2949035.2949059 | |
84. |
論文 |
Operator Exponentials for the Clifford Fourier Transform on Multivector Fields in Detail 26(3),953-968頁 (共著) 2016 |
言語種別 | 日本語 | 発行・発表の年月 | 2016 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Operator Exponentials for the Clifford Fourier Transform on Multivector Fields in Detail | 執筆形態 | 共著 | 掲載区分 | 国外 | 出版社・発行元 | Birkhauser / Springer | 巻・号・頁 | 26(3),953-968頁 | |
85. |
論文 |
The Quaternion Domain Fourier Transform and its Properties 26(3),969-984頁 (単著) 2016 |
言語種別 | 日本語 | 発行・発表の年月 | 2016 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | The Quaternion Domain Fourier Transform and its Properties | 執筆形態 | 単著 | 掲載区分 | 国外 | 巻・号・頁 | 26(3),969-984頁 | |
86. |
論文 |
Demystification of the Geometric Fourier Transforms and resulting Convolution Theorems Mathematical Methods in the Applied Sciences (共著) 2015/09 |
言語種別 | 英語 | 発行・発表の年月 | 2015/09 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Demystification of the Geometric Fourier Transforms and resulting Convolution Theorems | 執筆形態 | 共著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 著者・共著者 | R. Bujack, E. Hitzer, G. Scheuermann | |
87. |
論文 |
Moment Invariants for 3D Flow Fields via Normalization Proc The 8th IEEE Pacific Vis Symp (PacificVis 2015), Zhejiang Univ, Hangzhou, China, April 2015 pp.9-16 (共著) 2015/04 |
言語種別 | 英語 | 発行・発表の年月 | 2015/04 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Moment Invariants for 3D Flow Fields via Normalization | 執筆形態 | 共著 | 掲載誌名 | Proc The 8th IEEE Pacific Vis Symp (PacificVis 2015), Zhejiang Univ, Hangzhou, China, April 2015 | 掲載区分 | 国外 | 出版社・発行元 | IEEE | 巻・号・頁 | pp.9-16 | 著者・共著者 | R. Bujack, I. Hotz, G. Scheuermann, E. Hitzer | 概要 | Journal Name: Proceedings of The 8th IEEE Pacific Visualization Symposium (PacificVis 2015), Zhejiang University, Hangzhou, China, 14-17 April 2015 | DOI | 10.1109/PACIFICVIS.2015.7156350 | |
88. |
論文 |
Prospects of Modern Wood Gas Cogeneration Renewable Energy Supply in Japan − Case Study of ICU Vixra preprint server, Economics and Finance. (共著) 2015 |
言語種別 | 英語 | 発行・発表の年月 | 2015 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | Prospects of Modern Wood Gas Cogeneration Renewable Energy Supply in Japan − Case Study of ICU | 執筆形態 | 共著 | 掲載誌名 | Vixra preprint server, Economics and Finance. | 掲載区分 | 国外 | 出版社・発行元 | Vixra preprint server. | 担当範囲 | Most of text. | 著者・共著者 | E. Hitzer, N. Miyazaki, M. Langager, T. Kibe | 概要 | In this article we introduce scalable modern commercial wood gas cogeneration technology of micro scale, beginning at 35-45 kW electric power, scalable up to 800kW electric power, as offered by several international companies. Cogeneration means to use both electricity and heat, which leads to an overall efficiency of converting the chemical energy in wood of up to 90%. We discuss aspects of technology, sustainability, forest ecology, local and international fuel quality standards, long term cost efficiency, potential for attracting various forms of official financial support and potential risks involved. | |
89. |
論文 |
The orthogonal planes split of quaternions and its relation to quaternion geometry of rotations Proc 30th Int Coll on Gr Th Met i Phys, 14-18 Jul 2014, Ghent, Belgium, IOP J Phys: Conf Ser (JPCS) 597 (単著) 2015 |
言語種別 | 英語 | 発行・発表の年月 | 2015 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | The orthogonal planes split of quaternions and its relation to quaternion geometry of rotations | 執筆形態 | 単著 | 掲載誌名 | Proc 30th Int Coll on Gr Th Met i Phys, 14-18 Jul 2014, Ghent, Belgium, IOP J Phys: Conf Ser (JPCS) | 掲載区分 | 国外 | 巻・号・頁 | 597 | 著者・共著者 | E. Hitzer | DOI | 10.1088/1742-6596/597/1/012042 | |
90. |
論文 |
The true riches of Japan: High tech and natural energy can secure Japan’s peace and prosperity, and give a new sustainable peace and prosperity dimension to its overseas development aid Peace Reports of the International Christian University Peace Research Institute 10(2),pp.9-11 (単著) 2015 |
言語種別 | 英語 | 発行・発表の年月 | 2015 | 形態種別 | 研究論文 | 標題 | The true riches of Japan: High tech and natural energy can secure Japan’s peace and prosperity, and give a new sustainable peace and prosperity dimension to its overseas development aid | 執筆形態 | 単著 | 掲載誌名 | Peace Reports of the International Christian University Peace Research Institute | 掲載区分 | 国内 | 出版社・発行元 | International Christian University Peace Research Institute, Mitaka, Japan. | 巻・号・頁 | 10(2),pp.9-11 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
91. |
論文 |
Moment Invariants for 2D Flow Fields via Normalization in Detail pp.916-929 (共著) 2014/11 |
言語種別 | 英語 | 発行・発表の年月 | 2014/11 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Moment Invariants for 2D Flow Fields via Normalization in Detail | 執筆形態 | 共著 | 掲載区分 | 国外 | 巻・号・頁 | pp.916-929 | 概要 | DOI 10.1109/TVCG.2014.2369036 | |
92. |
論文 |
Book review of: Foundations of Geometric Algebra Computing Mathematical Reviews 2014 (単著) 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 書評,文献紹介等 | 招待論文 | 招待あり | 標題 | Book review of: Foundations of Geometric Algebra Computing | 執筆形態 | 単著 | 掲載誌名 | Mathematical Reviews | 掲載区分 | 国外 | 出版社・発行元 | American Mathematical Society | 巻・号・頁 | 2014 | 総ページ数 | 2 | 担当範囲 | all | 担当区分 | 筆頭著者,責任著者 | 著者・共著者 | Eckhard Hitzer | 概要 | E. Hitzer, book review of: Hildenbrand, D., Foundations of Geometric Algebra Computing, Springer, Berlin, 2013, 196 pages. Mathematical Reviews, MR 3013683 (https://mathscinet.ams.org/mathscinet/). | researchmap用URL | https://mathscinet.ams.org/mathscinet/ | |
93. |
論文 |
Book review of: New foundations in mathematics. The geometric concept of number Mathematical Reviews (単著) 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 書評,文献紹介等 | 招待論文 | 招待あり | 標題 | Book review of: New foundations in mathematics. The geometric concept of number | 執筆形態 | 単著 | 掲載誌名 | Mathematical Reviews | 掲載区分 | 国外 | 出版社・発行元 | American Mathematical Society | 総ページ数 | 2 | 担当範囲 | all | 担当区分 | 筆頭著者,責任著者 | 著者・共著者 | Eckhard Hitzer | 概要 | E. Hitzer, book review of: Sobczyk, G., New foundations in mathematics. The geometric concept of number, Birkhaeuser/Springer, New York, 2013, 384 pages. Mathematical Reviews, MR 3014720 (mathscinet.ams.org/mathscinet/). | researchmap用URL | https://mathscinet.ams.org/mathscinet/ | |
94. |
論文 |
Customized TRS Invariants for 2D Vector Fields via Moment Normalization Pattern Recognition Letters 46,pp.46-59 (共著) 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Customized TRS Invariants for 2D Vector Fields via Moment Normalization | 執筆形態 | 共著 | 掲載誌名 | Pattern Recognition Letters | 巻・号・頁 | 46,pp.46-59 | 著者・共著者 | R. Bujack, M. Hlawitschka, G. Scheuermann, E. Hitzer | DOI | 10.1016/j.patrec.2014.05.005 | |
95. |
論文 |
Detection of Outer Rotations on 3D-Vector Fields with Iterative Geometric Correlation and its Efficiency Adv. Appl. Clifford Alg. 24(2),pp.403-421 (共著) 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Detection of Outer Rotations on 3D-Vector Fields with Iterative Geometric Correlation and its Efficiency | 執筆形態 | 共著 | 掲載誌名 | Adv. Appl. Clifford Alg. | 出版社・発行元 | Springer/Birkhauser | 巻・号・頁 | 24(2),pp.403-421 | 著者・共著者 | R. Bujack, G. Scheuermann, E. Hitzer | DOI | 10.1007/s00006-013-0411-7 | |
96. |
論文 |
Moment Invariants for 2D Flow Fields Using Normalization Proceedings of IEEE Pacific Visualization Symposium (PacificVis) 2014 pp.41-48 (共著) 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Moment Invariants for 2D Flow Fields Using Normalization | 執筆形態 | 共著 | 掲載誌名 | Proceedings of IEEE Pacific Visualization Symposium (PacificVis) 2014 | 掲載区分 | 国外 | 巻・号・頁 | pp.41-48 | 著者・共著者 | R. Bujack, I. Holz, G. Scheuermann, E. Hitzer | DOI | 10.1109/PacificVis.2014.16 | |
97. |
論文 |
New Developments in Clifford Fourier Transforms Advances in Applied and Pure Mathematics, Proceedings of the 2014 International Conference on Pure M 29,pp.19-25 (単著) 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | New Developments in Clifford Fourier Transforms | 執筆形態 | 単著 | 掲載誌名 | Advances in Applied and Pure Mathematics, Proceedings of the 2014 International Conference on Pure M | 掲載区分 | 国外 | 巻・号・頁 | 29,pp.19-25 | 概要 | N. E. Mastorakis, P. M. Pardalos, R. P. Agarwal, L. Kocinac (eds.), Advances in Applied and Pure Mathematics, Proceedings of the 2014 International Conference on Pure Mathematics, Applied Mathematics, Computational Methods (PMAMCM 2014), Santorini Island, Greece, July 17-21, 2014, Mathematics and Computers in Science and Engineering Series, | |
98. |
論文 |
Operator Exponentials for the Clifford Fourier Transform on Multivector Fields Electronic proceedings of ICCA10, Tartu, Estonia, Aug. 2014. 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Operator Exponentials for the Clifford Fourier Transform on Multivector Fields | 執筆形態 | - | 掲載誌名 | Electronic proceedings of ICCA10, Tartu, Estonia, Aug. 2014. | 著者・共著者 | D. Eelbode, E. Hitzer | |
99. |
論文 |
Preprocessing quaternion data in quaternion spaces using the quaternion domain Fourier transform Proceedings of SICE Symposium on Systems and Information 2014 (SSI 2014), Session SS13-6, catalog No pp.834-839 (単著) 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 標題 | Preprocessing quaternion data in quaternion spaces using the quaternion domain Fourier transform | 執筆形態 | 単著 | 掲載誌名 | Proceedings of SICE Symposium on Systems and Information 2014 (SSI 2014), Session SS13-6, catalog No | 掲載区分 | 国内 | 巻・号・頁 | pp.834-839 | 著者・共著者 | E. Hitzer | 概要 | Proceedings of SICE Symposium on Systems and Information 2014 (SSI 2014), Session SS13-6, catalog No. SY0009/14/0000-0834©2014 SICE, Okayama University, Okayama, Japan, 21-23 Nov. 2014, pp. 834-839. | |
100. |
論文 |
Quaternion Domain Fourier Transform Electronic proceedings of ICCA10, Tartu, Estonia, Aug. 2014 (単著) 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Quaternion Domain Fourier Transform | 執筆形態 | 単著 | 掲載誌名 | Electronic proceedings of ICCA10, Tartu, Estonia, Aug. 2014 | 掲載区分 | 国外 | 著者・共著者 | E. Hitzer | |
101. |
論文 |
Two-sided Clifford Fourier transform with two square roots of −1 in Cl(p,q) Advances in Applied Clifford Algebras 24(2),pp.313-332 (単著) 2014 |
言語種別 | 英語 | 発行・発表の年月 | 2014 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | Two-sided Clifford Fourier transform with two square roots of −1 in Cl(p,q) | 執筆形態 | 単著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 24(2),pp.313-332 | 著者・共著者 | HITZER Eckhard | DOI | 10.1007/s00006-014-0441-9 | |
102. |
論文 |
A General Geometric Fourier Transform Trends in Mathematics 27, Birkhauser, Basel, 2013, pp. 155-176. pp.155-176 (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | A General Geometric Fourier Transform | 執筆形態 | 共著 | 掲載誌名 | Trends in Mathematics 27, Birkhauser, Basel, 2013, pp. 155-176. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland | 巻・号・頁 | pp.155-176 | 著者・共著者 | HITZER Eckhard, R. Bujack, G. Scheuermann | 概要 | in E. Hitzer, S.J. Sangwine (eds.), "Quaternion and Clifford Fourier transforms and wavelets", Trends in Mathematics 27, Birkhauser, Basel, 2013, pp. 155-176. DOI: 10.1007/978-3-0348-0603-9_8 , Preprint: http://arxiv.org/abs/1306.2184 . First published in K. Guerlebeck (ed.), electronic Proc. of The 9th Int. Conf. on Clifford Algebras and their Applications, (2011). | DOI | 10.1007/978-3-0348-0603-9_8 | |
103. |
論文 |
A General Geometric Fourier Transform Convolution Theorem Adv. Appl. Clifford Alg. 23(1),pp.15-38 (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | A General Geometric Fourier Transform Convolution Theorem | 執筆形態 | 共著 | 掲載誌名 | Adv. Appl. Clifford Alg. | 掲載区分 | 国外 | 巻・号・頁 | 23(1),pp.15-38 | 著者・共著者 | HITZER Eckhard, R. Bujack, G. Scheuerma | 概要 | The large variety of Fourier transforms in geometric algebras inspired the straight forward definition of “A General Geometric Fourier Transform” in Bujack et al., Proc. of ICCA9, covering most versions in the literature. We showed which constraints are additionally necessary to obtain certain features like linearity, a scaling, or a shift theorem. In this paper we extend the former results by a convolution theorem. | DOI | 10.1007/s00006-012-0338-4 | |
104. |
論文 |
Algebraic foundations of split hypercomplex nonlinear adaptive filtering Mathematical Methods in the Applied Sciences 36(9),pp.1042-1055 (単著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Algebraic foundations of split hypercomplex nonlinear adaptive filtering | 執筆形態 | 単著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 出版社・発行元 | Wiley | 巻・号・頁 | 36(9),pp.1042-1055 | 著者・共著者 | HITZER Eckhard | 概要 | A split hypercomplex learning algorithm for the training of nonlinear finite impulse response adaptive filters for the processing of hypercomplex signals of any dimension is proposed. The derivation strictly takes into account the laws of hypercomplex algebra and hypercomplex calculus, some of which have been neglected in existing learning approaches (e.g., for quaternions). Already in the case of quaternions, we can predict improvements in performance of hypercomplex processes. The convergence of the proposed algorithms is rigorously analyzed. | DOI | 10.1002/mma.2660 | |
105. |
論文 |
Applications of Clifford's Geometric Algebra Adv. Appl. Clifford Alg. 23,pp.377-404 (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Applications of Clifford's Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Adv. Appl. Clifford Alg. | 巻・号・頁 | 23,pp.377-404 | 著者・共著者 | HITZER Eckhard | 概要 | We survey the development of Clifford's geometric algebra and some of its engineering applications during the last 15 years. Several recently developed applications and their merits are discussed in some detail. We thus hope to clearly demonstrate the benefit of developing problem solutions in a unified framework for algebra and geometry with the widest possible scope: from quantum computing and electromagnetism to satellite navigation, from neural computing to camera geometry, image processing, robotics and beyond. | DOI | 10.1007/s00006-013-0378-4 | |
106. |
論文 |
Demystification of the Geometric Fourier Transforms AIP Conf. Proc. 1558,pp.525-528 (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Demystification of the Geometric Fourier Transforms | 執筆形態 | 共著 | 掲載誌名 | AIP Conf. Proc. | 巻・号・頁 | 1558,pp.525-528 | 著者・共著者 | R. Bujack, G. Scheuermann, E. Hitzer | DOI | 10.1063/1.4825543 | |
107. |
論文 |
Extending Fourier transformations to Hamilton’s quaternions and Clifford’s geometric algebras AIP Conf. Proc. 1558,pp.529-532 (単著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Extending Fourier transformations to Hamilton’s quaternions and Clifford’s geometric algebras | 執筆形態 | 単著 | 掲載誌名 | AIP Conf. Proc. | 巻・号・頁 | 1558,pp.529-532 | 概要 | In T. Simos, G. Psihoyios and C. Tsitouras (eds.), Numerical Analysis and Applied Mathematics ICNAAM 2013, AIP Conf. Proc. 1558, pp. 529 -532 (2013). DOI: 10.1063/1.4825544 | DOI | 10.1063/1.4825544 | |
108. |
論文 |
History of Quaternion and Clifford-Fourier Transforms "Quaternion and Clifford Fourier Transforms and Wavelets", Trends in Mathematics (TIM) 27,pp.xi-xxvii (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | History of Quaternion and Clifford-Fourier Transforms | 執筆形態 | 共著 | 掲載誌名 | "Quaternion and Clifford Fourier Transforms and Wavelets", Trends in Mathematics (TIM) | 出版社・発行元 | Springer/Birkhauser | 巻・号・頁 | 27,pp.xi-xxvii | 著者・共著者 | F. Brackx, E. Hitzer, S. Sangwine | |
109. |
論文 |
Quaternionic Fourier-Mellin Transform Proceedings of 19th ICFIDCAA pp.123-131 (単著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Quaternionic Fourier-Mellin Transform | 執筆形態 | 単著 | 掲載誌名 | Proceedings of 19th ICFIDCAA | 出版社・発行元 | Tohoku University Press, Sendai | 巻・号・頁 | pp.123-131 | 著者・共著者 | HITZER Eckhard | 概要 | in T. Sugawa (ed.), Proceedings of the The 19th International Conference on Finite or Infinite Dimensional Complex Analysis and Applications (ICFIDCAA), 11-15 December 2011, Hiroshima, Japan, Tohoku University Press, Sendai (2013), pp. ii, 123-131. Preprint: http://arxiv.org/abs/1306.1669 . | |
110. |
論文 |
Representation of Crystallographic Subperiodic Groups in Clifford's Geometric Algebra Adv. Appl. Clifford Alg. 23(4),pp.887-906 (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Representation of Crystallographic Subperiodic Groups in Clifford's Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Adv. Appl. Clifford Alg. | 掲載区分 | 国外 | 出版社・発行元 | Springer/Birkhauser | 巻・号・頁 | 23(4),pp.887-906 | 著者・共著者 | E. Hitzer, D. Ichikawa | DOI | 10.1063/1.4825543 | |
111. |
論文 |
Square roots of -1 in real Clifford algebras Trends in Mathematics, Vol 27, Birkhauser, Basel, 2013. pp.123-153 (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Square roots of -1 in real Clifford algebras | 執筆形態 | 共著 | 掲載誌名 | Trends in Mathematics, Vol 27, Birkhauser, Basel, 2013. | 巻・号・頁 | pp.123-153 | 著者・共著者 | HITZER Eckhard, J. Helmstetter, R. Ablamowicz | 概要 | Let Cl(p,q) be the universal Clifford algebra (associative with unit) generated over R by p + q elements e_k (with k = 1, 2, ... , p + q) with the relations e^2_k = 1 if k <= p, e^2_k = -1 if k > p and e_he_k + e_ke_h = 0 whenever h not equal k, see [6]. We set n = p + q and s = p - q. This algebra has dimension 2^n, and its even subalgebra Cl_0(p,q) has dimension 2^{n-1} (if n > 0). We are concerned with square roots of -1 contained in Cl(p,q) or Cl_0(p,q). If the dimension of Cl(p,q) or C_0(p,q) is less or equal 2, it is isomorphic to R or R^2 or C, and it is clear that there is no square root of -1 in R and R2 = R x R, and that there are two squares roots i and -i in C. Therefore we only consider algebras of dimension greater or equal 4. Square roots of -1 have been computed in [4] for algebras of dimension less or equal 16, and for Cl(3,0) in [7]. | DOI | 10.1007/978-3-0348-0603-9_7 | |
112. |
論文 |
The Clifford Fourier transform in real Clifford algebras Clifford Analysis, Clifford Algebras and their Applications 2(3),pp.227-240 (単著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文 | 査読 | 査読あり | 標題 | The Clifford Fourier transform in real Clifford algebras | 執筆形態 | 単著 | 掲載誌名 | Clifford Analysis, Clifford Algebras and their Applications | 掲載区分 | 国外 | 出版社・発行元 | Cambridge Scientiic Publishers | 巻・号・頁 | 2(3),pp.227-240 | 担当範囲 | Everything | 著者・共著者 | HITZER Eckhard | 概要 | in E. H., K. Tachibana (eds.), "Session on Geometric Algebra and Applications, IKM 2012", Special Issue of Clifford Analysis, Clifford Algebras and their Applications, Vol. 2, No. 3, pp. 223-235, (2013). First published in K. Guerlebeck, T. Lahmer and F. Werner (eds.), electronic Proc. of 19th International Conference on the Application of Computer Science and Mathematics in Architecture and Civil Engineering, IKM 2012, Weimar, Germany, 04–06 July 2012. | |
113. |
論文 |
The orthogonal planes split of quaternions Trends in Mathematics 27, Birkhauser, Basel, 2013, pp. 15-39. DOI: 10.1007/978-3-0348-0603-9_2 pp.15-39 (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 会議報告等 | 査読 | 査読あり | 標題 | The orthogonal planes split of quaternions | 執筆形態 | 共著 | 掲載誌名 | Trends in Mathematics 27, Birkhauser, Basel, 2013, pp. 15-39. DOI: 10.1007/978-3-0348-0603-9_2 | 掲載区分 | 国外 | 出版社・発行元 | Birkhauser, Basel, Switzerland. | 巻・号・頁 | pp.15-39 | 担当範囲 | Symbolic algebraic computations and part of text. | 著者・共著者 | HITZER Eckhard, S. J. Sangwine | 概要 | The two-sided quaternionic Fourier transformation (QFT) was introduced in [2] for the analysis of 2D linear time-invariant partial-differential systems. In further theoretical investigations [3, 4] a special split of quaternions was introduced, then called plus minus split. In the current paper we analyze this split further, interpret it geometrically as orthogonal planes split (OPS), and generalize it. The new general form of the OPS split allows us to find new geometric interpretations for the action of the QFT on the signal. The second major result of this work is a variety of new forms of the QFT, their geometric interpretation, and for each form OPS split theorems, which allow fast and efficient numerical implementation with standard FFT software. | DOI | 10.1007/978-3-0348-0603-9_2 | |
114. |
論文 |
The quest for conformal geometric algebra Fourier transformations AIP Conf. Proc. 1558,pp.30-33 (単著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | The quest for conformal geometric algebra Fourier transformations | 執筆形態 | 単著 | 掲載誌名 | AIP Conf. Proc. | 掲載区分 | 国外 | 出版社・発行元 | American Institute of Physics | 巻・号・頁 | 1558,pp.30-33 | 担当範囲 | Everything | DOI | 10.1063/1.4825413 | |
115. |
論文 |
Vector field computations in Clifford's geometric algebra Proc. of the Third SICE Symposium on Computational Intelligence, August 30, 2013, Osaka University, Osaka pp.91-95 (共著) 2013 |
言語種別 | 英語 | 発行・発表の年月 | 2013 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 標題 | Vector field computations in Clifford's geometric algebra | 執筆形態 | 共著 | 掲載誌名 | Proc. of the Third SICE Symposium on Computational Intelligence, August 30, 2013, Osaka University, Osaka | 巻・号・頁 | pp.91-95 | 著者・共著者 | E. Hitzer, R. Bujack, G. Scheuerma | |
116. |
論文 |
Clifford Fourier-Mellin transform with two real square roots of -1 in Cl(p,q), p+q = 2 AIP Conf. Proc. 1493,pp.480-485 (単著) 2012 |
言語種別 | 英語 | 発行・発表の年月 | 2012 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Clifford Fourier-Mellin transform with two real square roots of -1 in Cl(p,q), p+q = 2 | 執筆形態 | 単著 | 掲載誌名 | AIP Conf. Proc. | 掲載区分 | 国外 | 出版社・発行元 | American Institute of Physics | 巻・号・頁 | 1493,pp.480-485 | 担当範囲 | Everything | 著者・共著者 | HITZER Eckhard | 概要 | We describe a non-commutative generalization of the complex Fourier-Mellin transform to Clifford algebra valued signal functions over the domain mathp,q taking values in Cl(p,q),p+q = 2. | DOI | 10.1063/1.4765531 | |
117. |
論文 |
Detection of Outer Rotations on 3D-Vector Fields with Iterative Geometric Correlation electronic Proceedings of AGACSE 2012, La Rochelle, France, 2-4 July 2012. (共著) 2012 |
言語種別 | 英語 | 発行・発表の年月 | 2012 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Detection of Outer Rotations on 3D-Vector Fields with Iterative Geometric Correlation | 執筆形態 | 共著 | 掲載誌名 | electronic Proceedings of AGACSE 2012, La Rochelle, France, 2-4 July 2012. | 著者・共著者 | HITZER Eckhard, R. Bujack, G. Scheuermann | |
118. |
論文 |
Detection of Total Rotations on linear 2D-Vector Fields with Iterative Geometric Correlation AIP Conf. Proc. 1493,pp.190-199 (共著) 2012 |
言語種別 | 英語 | 発行・発表の年月 | 2012 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Detection of Total Rotations on linear 2D-Vector Fields with Iterative Geometric Correlation | 執筆形態 | 共著 | 掲載誌名 | AIP Conf. Proc. | 掲載区分 | 国外 | 出版社・発行元 | American Institute of Physics | 巻・号・頁 | 1493,pp.190-199 | 著者・共著者 | HITZER Eckhard | 概要 | Correlation is a common technique for the detection of shifts. Its generalization to the multidimensional geometric correlation in Clifford algebras additionally contains information with respect to rotational misalignment. It has been proven a useful tool for the registration of vector fields that differ by an outer rotation. In this paper we proof that applying the geometric correlation iteratively has the potential to detect the total rotational misalignment for linear two-dimensional vector fields. We further analyze its effect on general analytic vector fields and show how the rotation can be calculated from their power series expansions. | DOI | 10.1063/1.4765489 | |
119. |
論文 |
Introduction to Clifford's Geometric Algebra SICE Journal of Control, Measurement, and System Integration 51(4) (単著) 2012 |
言語種別 | 英語 | 発行・発表の年月 | 2012 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Introduction to Clifford's Geometric Algebra | 執筆形態 | 単著 | 掲載誌名 | SICE Journal of Control, Measurement, and System Integration | 掲載区分 | 国内 | 巻・号・頁 | 51(4) | 著者・共著者 | HITZER Eckhard | 概要 | Geometric algebra was initiated byW.K. Clifford over 130 years ago. It unifies all branches of physics, and has found rich applications in robotics, signal processing, ray tracing, virtual reality, computer vision, vector field processing, tracking, geographic information systems and neural computing. This tutorial explains the basics of geometric algebra, with concrete examples of the plane, of 3D space, of spacetime, and the popular conformal model. Geometric algebras are ideal to represent geometric transformations in the general framework of Clifford groups (also called versor or Lipschitz groups). Geometric (algebra based) calculus allows e.g. to optimize learning algorithms of Clifford neurons, etc. | |
120. |
論文 |
Natural Science Education in Germany in 2012 after the 1999 European Bologna Reforms Proceedings of the Meiji University Symposium on Mathematical Education 2012, Meiji University, Toky pp.51-54 (単著) 2012 |
言語種別 | 英語 | 発行・発表の年月 | 2012 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | Natural Science Education in Germany in 2012 after the 1999 European Bologna Reforms | 執筆形態 | 単著 | 掲載誌名 | Proceedings of the Meiji University Symposium on Mathematical Education 2012, Meiji University, Toky | 掲載区分 | 国内 | 出版社・発行元 | Meiji University, Tokyo | 巻・号・頁 | pp.51-54 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | High school teacher education - Education of University Teachers - Research at German Universities - The new structure of university degrees in Germany after the Bologna reforms - The new Bachelor degree - The new Master degree - Acknowledgments - Further literature. | |
121. |
論文 |
Survey of Applications of Clifford Algebra SICE Journal of Control, Measurement, and System Integration 51(4) (共著) 2012 |
言語種別 | 日本語 | 発行・発表の年月 | 2012 | 形態種別 | 研究論文(学術雑誌) | 標題 | Survey of Applications of Clifford Algebra | 執筆形態 | 共著 | 掲載誌名 | SICE Journal of Control, Measurement, and System Integration | 掲載区分 | 国内 | 巻・号・頁 | 51(4) | 著者・共著者 | HITZER Eckhard | 概要 | We survey the development of Cliord's geometric algebra and some of its engineering applications during the last 15 years. Several recently developed applications and their merits are discussed in some detail. We thus hope to clearly demonstrate the benefit of developing problem solutions in a unified framework for algebra and geometry with the widest possible scope: from quantum computing and electromagnetism to satellite navigation, from neural computing to camera geometry, image processing, robotics and beyond. | |
122. |
論文 |
Crystal planes and reciprocal space in Clifford geometric algebra Math. Methods in the Applied Sciences 34(12),pp.1421-1429 (単著) 2011 |
言語種別 | 英語 | 発行・発表の年月 | 2011 | 形態種別 | 研究論文(学術雑誌) | 標題 | Crystal planes and reciprocal space in Clifford geometric algebra | 執筆形態 | 単著 | 掲載誌名 | Math. Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | 34(12),pp.1421-1429 | 担当範囲 | Everything | 著者・共著者 | HITZER Eckhard | 概要 | This paper discusses the geometry of kD crystal cells given by (k+ 1) points in a projective space ℝn+ 1. We show how the concepts of barycentric and fractional (crystallographic) coordinates, reciprocal vectors and dual representation are related (and geometrically interpreted) in the projective geometric algebra Cl(ℝn+ 1) (see (Die Ausdehnungslehre von 1844 und die Geom. Anal. Teubner: Leipzig, 1894)) and in the conformal algebra Cl(ℝn+ 1, 1). The crystallographic notions of d-spacing, phase angle, structure factors, conditions for Bragg reflections, and the interfacial angles of crystal planes are obtained in the same context. | DOI | 10.1002/mma.1442 | |
123. |
論文 |
Geometric Roots of –1 in Clifford Algebras Cl(p,q) with p+q <= 4 Adv. In Appl. Cliff. Algebras 21(1),pp.121-144 (共著) 2011 |
言語種別 | 英語 | 発行・発表の年月 | 2011 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Geometric Roots of –1 in Clifford Algebras Cl(p,q) with p+q <= 4 | 執筆形態 | 共著 | 掲載誌名 | Adv. In Appl. Cliff. Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 21(1),pp.121-144 | 担当範囲 | Symbolic computations and most of text. | 著者・共著者 | HITZER Eckhard, R. Abłamowicz | 概要 | It is known that Clifford (geometric) algebra offers a geometric interpretation for square roots of -1 in the form of blades that square to minus 1. This extends to a geometric interpretation of quaternions as the side face bivectors of a unit cube. Research has been done [S. J. Sangwine, Biquaternion (Complexified Quaternion) Roots of -1, Adv. Appl. Cliford Alg. 16(1), pp. 63-68, 2006.] on the biquaternion roots of -1, abandoning the restriction to blades. Biquaternions are isomorphic to the Clifford (geometric) algebra C(3,0) of R^3. All these roots of -1 find immediate applications in the construction of new types of geometric Clifford Fourier transformations. We now extend this research to general algebras C(p,q). We fully derive the geometric roots of -1 for the Clifford (geometric) algebras with p+q <= 4. | DOI | 10.1007/s00006-010-0240-x | |
124. |
論文 |
Non-constant bounded holomorphic functions of hyperbolic numbers - Candidates for hyperbolic activation functions Proceedings of the First SICE Symposium on Computational Intelligence pp.23-28 (単著) 2011 |
言語種別 | 英語 | 発行・発表の年月 | 2011 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 査読 | 査読あり | 標題 | Non-constant bounded holomorphic functions of hyperbolic numbers - Candidates for hyperbolic activation functions | 執筆形態 | 単著 | 掲載誌名 | Proceedings of the First SICE Symposium on Computational Intelligence | 掲載区分 | 国内 | 巻・号・頁 | pp.23-28 | 担当範囲 | Everything. | 著者・共著者 | HITZER Eckhard | 概要 | The Liouville theorem states that bounded holomorphic complex functions are necessarily constant. Holomorphic functions fulfill the socalled Cauchy-Riemann (CR) conditions. The CR conditions mean that a complex z-derivative is independent of the direction. Holomorphic functions are ideal for activation functions of complex neural networks, but the Liouville theorem makes them useless. Yet recently the use of hyperbolic numbers, lead to the construction of hyperbolic number neural networks. We will describe the Cauchy-Riemann conditions for hyperbolic numbers and show that there exists a new interesting type of bounded holomorphic functions of hyperbolic numbers, which are not constant. We give examples of such functions. They therefore substantially expand the available candidates for holomorphic activation functions for hyperbolic number neural networks. | |
125. |
論文 |
OPS-QFTs: A new type of quaternion Fourier transforms based on the orthogonal planes split with one or two general pure quaternions AIP Conf. Proc. 1389,pp.280-283 (単著) 2011 |
言語種別 | 英語 | 発行・発表の年月 | 2011 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | OPS-QFTs: A new type of quaternion Fourier transforms based on the orthogonal planes split with one or two general pure quaternions | 執筆形態 | 単著 | 掲載誌名 | AIP Conf. Proc. | 掲載区分 | 国外 | 出版社・発行元 | American Institute of Physics | 巻・号・頁 | 1389,pp.280-283 | 著者・共著者 | HITZER Eckhard | 概要 | We explain the orthogonal planes split (OPS) of quaternions based on the arbitrary choice of one or two linearly independent pure unit quaternions f,g. Next we systematically generalize the quaternionic Fourier transform (QFT) applied to quaternion fields to conform with the OPS determined by f,g, or by only one pure unit quaternion f, comment on their geometric meaning, and establish inverse transformations. | DOI | 10.1063/1.3636721 | |
126. |
論文 |
A Note on Geometric Algebra and Neural Networks Proc. of 20th Intelligent Systems Symposium (FAN 2010), 25-26 Sep. 2010, Tokyo, Japan pp.116-117 (共著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 標題 | A Note on Geometric Algebra and Neural Networks | 執筆形態 | 共著 | 掲載誌名 | Proc. of 20th Intelligent Systems Symposium (FAN 2010), 25-26 Sep. 2010, Tokyo, Japan | 掲載区分 | 国内 | 巻・号・頁 | pp.116-117 | 著者・共著者 | K. Tachibana, E. Hitzer, M. T. Pham, T. Yoshikawa, T. Furuhashi | |
127. |
論文 |
Angles between subspaces Workshop Proceedings: Computer Graphics, Computer Vision and Mathematics 2010, Sep. 07-10 (単著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Angles between subspaces | 執筆形態 | 単著 | 掲載誌名 | Workshop Proceedings: Computer Graphics, Computer Vision and Mathematics 2010, Sep. 07-10 | 出版社・発行元 | UNION Agency, Plzen | 著者・共著者 | HITZER Eckhard | 概要 | We first review the denition of the angle between subspaces and how it is computed using matrix algebra. Then we introduce the Grassmann and Clifford algebra description of subspaces. The geometric product of two subspaces yields the full relative angular information in an explicit manner. We explain and interpret the result of the geometric product of subspaces gaining thus full access to the relative orientation information. | |
128. |
論文 |
Angles Between Subspaces Computed in Clifford Algebra AIP Conf. Proc. 1281,pp.1476-1479 (単著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Angles Between Subspaces Computed in Clifford Algebra | 執筆形態 | 単著 | 掲載誌名 | AIP Conf. Proc. | 掲載区分 | 国外 | 出版社・発行元 | American Institute of Physics | 巻・号・頁 | 1281,pp.1476-1479 | 著者・共著者 | HITZER Eckhard | 概要 | We first review the definition of the angle between subspaces and how it is computed using matrix algebra. Then we introduce the Grassmann and Clifford algebra description of subspaces. The geometric product of two subspaces yields the full relative angular information in an explicit manner. We explain and interpret the result of the geometric product of subspaces gaining thus full practical access to the relative orientation information. | DOI | 10.1063/1.3498043 | |
129. |
論文 |
Classification and Clustering of Spatial Patterns with Geometric Algebra Geometric Algebra Computing, Springer, New York, 2010 pp.231-247 (共著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Classification and Clustering of Spatial Patterns with Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Geometric Algebra Computing, Springer, New York, 2010 | 掲載区分 | 国外 | 出版社・発行元 | Spriner | 巻・号・頁 | pp.231-247 | 著者・共著者 | M. T. Pham, K. Tachibana, E. Hitzer, T. Yoshikawa, T. Furuhashi | |
130. |
論文 |
Directional Uncertainty Principle for Quaternion Fourier Transforms Advances in Applied Clifford Algebras 20(2),pp.271-284 (単著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Directional Uncertainty Principle for Quaternion Fourier Transforms | 執筆形態 | 単著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland | 巻・号・頁 | 20(2),pp.271-284 | 担当範囲 | Everything. | 著者・共著者 | HITZER Eckhard | 概要 | This paper derives a new directional uncertainty principle for quaternion valued functions subject to the quaternion Fourier transformation. This can be generalized to establish directional uncertainty principles in Clifford geometric algebras with quaternion subalgebras. We demonstrate this with the example of a directional spacetime algebra function uncertainty principle related to multivector wave packets. | DOI | 10.1007/s00006-009-0175-2 | |
131. |
論文 |
Interactive 3D Space Group Visualization with CLUCalc and Crystallographic Subperiodic Groups in Geometric Algebra Geometric Algebra Computing, Springer, New York, 2010 pp.385-400 (共著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Interactive 3D Space Group Visualization with CLUCalc and Crystallographic Subperiodic Groups in Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Geometric Algebra Computing, Springer, New York, 2010 | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | pp.385-400 | 担当範囲 | Most of text and computations | 著者・共著者 | HITZER Eckhard, C. Perwass, D. Ichikawa | 概要 | The Space Group Visualizer (SGV) for all 230 3D space groups is a standalone PC application based on the visualization software CLUCalc. We first explain the unique geometric algebra structure behind the SGV. In the second part we review the main features of the SGV: The GUI, group and symmetry selection, mouse pointer interactivity, and visualization options.We further introduce the joint use with the International Tables of Crystallography, Vol. A [7]. In the third part we explain how to represent the 162 socalled subperiodic groups of crystallography in geometric algebra. We construct a new compact geometric algebra group representation symbol, which allows to read off the complete set of geometric algebra generators. For clarity we moreover state explicitly what generators are chosen. The group symbols are based on the representation of point groups in geometric algebra by versors. | |
132. |
論文 |
Interactive 3D Space Group Visualization with CLUCalc and the Clifford Geometric Algebra Description of Space Groups Adv. Appl. Clifford Alg. 20(3-4),pp.631-658 (共著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(学術雑誌) | 標題 | Interactive 3D Space Group Visualization with CLUCalc and the Clifford Geometric Algebra Description of Space Groups | 執筆形態 | 共著 | 掲載誌名 | Adv. Appl. Clifford Alg. | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 20(3-4),pp.631-658 | 担当範囲 | Most of text and computations. | 著者・共著者 | HITZER Eckhard, C. Perwass | 概要 | A new interactive software tool is described, that visualizes 3D space group symmetries. The software computes with Clifford (geometric) algebra. The space group visualizer (SGV) is a script for the open source visual CLUCalc, which fully supports geometric algebra computation. Selected generators (Hestenes and Holt, JMP, 2007) form a multivector generator basis of each space group. The approach corresponds to an algebraic implementation of groups generated by reflections (Coxeter and Moser, 4th ed., 1980). | |
133. |
論文 |
Interactive visualization of plane groups The Journal of the Int. Soc. For the Interdisc. Study of Symmetry (ISIS) 2010(1-4),pp.80-83 (単著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Interactive visualization of plane groups | 執筆形態 | 単著 | 掲載誌名 | The Journal of the Int. Soc. For the Interdisc. Study of Symmetry (ISIS) | 掲載区分 | 国外 | 巻・号・頁 | 2010(1-4),pp.80-83 | 著者・共著者 | HITZER Eckhard | 概要 | This contribution shows how to successfully display the 17 two-dimensional space groups (wallpaper groups) in the interactive crystal symmetry software Space Group Visualizer (SGV) (Perwass & Hitzer, 2005). We show examples of four wallpaper groups that contain (as sub patterns, i.e as subgroups) all other 13 wallpaper groups. The SGV is described in (Hitzer & Perwass, 2010). It is based on a new type of powerful geometric algebra visualization platform (Perwass, 2000). | |
134. |
論文 |
Interactive Visualization of Plane Space Groups with the Space Group Visualizer Vixra Preprint Server, Condensed Matter. pp.1-36 (単著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文 | 標題 | Interactive Visualization of Plane Space Groups with the Space Group Visualizer | 執筆形態 | 単著 | 掲載誌名 | Vixra Preprint Server, Condensed Matter. | 掲載区分 | 国外 | 出版社・発行元 | Vixra Preprint Server. | 巻・号・頁 | pp.1-36 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | This set of instructions shows how to successfully display the 17 two-dimensional (2D) space groups in the interactive crystal symmetry software Space Group Visualizer (SGV) [6]. The SGV is described in [4]. It is based on a new type of powerful geometric algebra visualization platform [5]. The principle is to select in the SGV a three-dimensional super space group and by orthogonal projection produce a view of the desired plane 2D space group. The choice of 3D super space group is summarized in the lookup table Table 1. | |
135. |
論文 |
New views of crystal symmetry guided by profound admiration of the extraordinary works of Grassmann and Clifford From Past to Future: Graßmann's Work in Context, Graßmann Bicentennial Conference, September 2009 pp.413-422 (単著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | New views of crystal symmetry guided by profound admiration of the extraordinary works of Grassmann and Clifford | 執筆形態 | 単著 | 掲載誌名 | From Past to Future: Graßmann's Work in Context, Graßmann Bicentennial Conference, September 2009 | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland | 巻・号・頁 | pp.413-422 | 著者・共著者 | HITZER Eckhard | 概要 | This paper shows how beginning with Justus Grassmann's work, Hermann Grassmann was influenced in his mathematical thinking by crystal- lography. H. Grassmann's Ausdehnungslehre in turn had a decisive influence on W.K. Clifford in the genesis of geometric algebras. Geometric algebras have been expanded to conformal geometric algebras, which provide an ideal framework for modern computer graphics. Within this framework a new visualization of three-dimensional crystallographic space groups has been created. The complex beauty of this new visualization is shown by a range of images of a diamond cell. Mathematical details are given in an appendix. | |
136. |
論文 |
Reciprocal space and crystal planes in geometric algebra electronic conf. proc. of AGACSE 2010, Amsterdam, The Netherlands, 14-16 June 2010. (単著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Reciprocal space and crystal planes in geometric algebra | 執筆形態 | 単著 | 掲載誌名 | electronic conf. proc. of AGACSE 2010, Amsterdam, The Netherlands, 14-16 June 2010. | 掲載区分 | 国外 | 著者・共著者 | HITZER Eckhard | 概要 | This contribution discusses the geometry of kD crystal cells given by (k + 1) points in a projective space R^{n+1}. We show how the concepts of barycentric and fractional (crystallographic) coordinates, reciprocal vectors and dual representation are related (and geometrically interpreted) in the projective geometric algebra R_{n+1} (see [2]) and in the conformal algebra R_{n+1,1}. The crystallographic notions of d-spacing, phase angle (in structure factors), extinction of Bragg re ections, and the interfacial angles of crystal planes are obtained in the same context.
[2] H. Grassmann, edited by F. Engel, Die Ausdehnungslehre von 1844 und die Geometrische Analysis, Vol. 1, Part 1, Teubner, Leipzig, 1894. | |
137. |
論文 |
Two-Dimensional Clifford Windowed Fourier Transform Geometric Algebra Computing, Springer, New York, 2010 pp.93-106 (共著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Two-Dimensional Clifford Windowed Fourier Transform | 執筆形態 | 共著 | 掲載誌名 | Geometric Algebra Computing, Springer, New York, 2010 | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | pp.93-106 | 著者・共著者 | B. Mawardi, E. Hitzer, S. Adji | 概要 | Recently several generalizations to higher dimension of the classical Fourier transform (FT) using Clifford geometric algebra have been introduced, including the two-dimensional (2D) Clifford Fourier transform (CFT). Based on the 2D CFT, we establish the two-dimensional Clifford windowed Fourier transform (CWFT). Using the spectral representation of the CFT, we derive several important properties such as shift, modulation, a reproducing kernel, isometry and an orthogonality relation. Finally, we discuss examples of the CWFT and compare the CFT and the CWFT. | |
138. |
論文 |
Windowed Fourier transform of two-dimensional quaternionic signals Appl. Math. and Computation 216(8),pp.2366-2379 (共著) 2010 |
言語種別 | 英語 | 発行・発表の年月 | 2010 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Windowed Fourier transform of two-dimensional quaternionic signals | 執筆形態 | 共著 | 掲載誌名 | Appl. Math. and Computation | 掲載区分 | 国外 | 出版社・発行元 | Elsevier | 巻・号・頁 | 216(8),pp.2366-2379 | 著者・共著者 | HITZER Eckhard, B. Mawardi, R. Ashino, R. Vaillancourt | 概要 | In this paper, we generalize the classical windowed Fourier transform (WFT) to quaternion-valued signals, called the quaternionic windowed Fourier transform (QWFT). Using the spectral representation of the quaternionic Fourier transform (QFT), we derive several important prop- erties such as reconstruction formula, reproducing kernel, isometry, and orthogonality relation. Taking the Gaussian function as window function we obtain quaternionic Gabor filters which play the role of coefficient functions when decomposing the signal in the quaternionic Gabor basis. We apply the QWFT properties and the (right-sided) QFT to establish a Heisenberg type uncertainty principle for the QWFT. Finally, we briefly introduce an application of the QWFT to a linear time-varying system. | DOI | 10.1016/j.amc.2010.03.082 | |
139. |
論文 |
Algorithm for conversion between geometric algebra versor notation and conventional crystallographic symmetry-operation symbols Vixra Preprint Server, Condensed Matter. pp.1-14 (共著) 2009 |
言語種別 | 英語 | 発行・発表の年月 | 2009 | 形態種別 | 研究論文 | 標題 | Algorithm for conversion between geometric algebra versor notation and conventional crystallographic symmetry-operation symbols | 執筆形態 | 共著 | 掲載誌名 | Vixra Preprint Server, Condensed Matter. | 掲載区分 | 国外 | 出版社・発行元 | Vixra Preprint Server | 巻・号・頁 | pp.1-14 | 担当範囲 | Most of text and tables. | 著者・共著者 | E. Hitzer, C. Perwass | |
140. |
論文 |
Analysis of Point Clouds - Using conformal geometric algebra GRAPP 2008, 3rd Int. Conf. on Computer Graphics Theory and Applications. Proc. pp.99-106 (共著) 2009 |
言語種別 | 英語 | 発行・発表の年月 | 2009 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Analysis of Point Clouds - Using conformal geometric algebra | 執筆形態 | 共著 | 掲載誌名 | GRAPP 2008, 3rd Int. Conf. on Computer Graphics Theory and Applications. Proc. | 掲載区分 | 国外 | 巻・号・頁 | pp.99-106 | 著者・共著者 | HITZER Eckhard, D. Hildenbrand | 概要 | This paper presents some basics for the analysis of point clouds using the geometrically intuitive mathematical framework of conformal geometric algebra. In this framework it is easy to compute with osculating circles for the description of local curvature. Also methods for the fitting of spheres as well as bounding spheres are presented. In a nutshell, this paper provides a starting point for shape analysis based on this new, geometrically intuitive and promising technology. | |
141. |
論文 |
Carrier method for the general evaluation and control of pose, molecular conformation, tracking, and the like Advances in Applied Clifford Algebras 19(2),pp.339-364 (共著) 2009 |
言語種別 | 英語 | 発行・発表の年月 | 2009 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Carrier method for the general evaluation and control of pose, molecular conformation, tracking, and the like | 執筆形態 | 共著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland | 巻・号・頁 | 19(2),pp.339-364 | 著者・共著者 | HITZER Eckhard, Kanta Tachibana, Sven Buchholz, Isseki Yu | 概要 | The four basic geometric objects of points, point pairs, circles and spheres correspond to outer product null-spaces constructed by conformal points in conformal geometric algebra. Wedging with the infinity point we get four flat objects: finite-infinity point pairs, lines, planes and the whole 5D space. We show that all these basic geometric objects have the same algebraic structure. We then develop a single general algebraic method to quantify and interpolate the relative pose of the eight different classes of objects. As an explicit example we finally apply our framework to the conformation of organic macromolecules. | DOI | 10.1007/s00006-009-0160-9 | |
142. |
論文 |
Clifford (Geometric) Algebra Wavelet Transform Proc. of GraVisMa 2009, 02-04 Sep. 2009, Plzen, Czech Republic pp.94-101 (単著) 2009 |
言語種別 | 英語 | 発行・発表の年月 | 2009 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Clifford (Geometric) Algebra Wavelet Transform | 執筆形態 | 単著 | 掲載誌名 | Proc. of GraVisMa 2009, 02-04 Sep. 2009, Plzen, Czech Republic | 掲載区分 | 国外 | 巻・号・頁 | pp.94-101 | 著者・共著者 | HITZER Eckhard | 概要 | While the Clifford (geometric) algebra Fourier Transform (CFT) is global, we introduce here the local Clifford (geometric) algebra (GA) wavelet concept. We show how for n = 2,3(mod 4) continuous Cl_n-valued admissible wavelets can be constructed using the similitude group SIM(n). We strictly aim for real geometric interpretation, and replace the imaginary unit i element of C (complex numbers) therefore with a GA blade squaring to -1. Consequences due to non-commutativity arise. We express the admissibility condition in terms of a Cl_n CFT and then derive a set of important properties such as dilation, translation and rotation covariance, a reproducing kernel, and show how to invert the CliRord wavelet transform. As an explicit example, we introduce Clifford Gabor wavelets. We further invent a generalized Clifford wavelet uncertainty principle. Extensions of CFTs and Clifford wavelets to Cl(0,n') ; n' = 1,2(mod 4) appear straight forward. | |
143. |
論文 |
New views of crystal symmetry The Journal of the Int. Soc. For the Interdisciplinary Study of Symmetry (Special),pp.112-115 (単著) 2009 |
言語種別 | 英語 | 発行・発表の年月 | 2009 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | New views of crystal symmetry | 執筆形態 | 単著 | 掲載誌名 | The Journal of the Int. Soc. For the Interdisciplinary Study of Symmetry | 掲載区分 | 国外 | 巻・号・頁 | (Special),pp.112-115 | 著者・共著者 | HITZER Eckhard | 概要 | Already Hermann Grassmann's father Justus (1829, 1830) published two works on the geometrical description of crystals, influenced by the earlier works of C.S. Weiss (1780-1856) on three main crystal forces governing crystal formation. In his 1840 essay on the derivation of crystal shapes from the general law of crystal formation Hermann established the notion of a three-dimensional vectorial system of forces with rational coefficients, that represent the interior crystal structure, regulate its formation, its shape and physical behavior. | |
144. |
論文 |
Real Clifford Algebra Cl(n,0), n = 2,3(mod 4) Wavelet Transform AIP Conf. Proceedings 1168,pp.781-784 (単著) 2009 |
言語種別 | 英語 | 発行・発表の年月 | 2009 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Real Clifford Algebra Cl(n,0), n = 2,3(mod 4) Wavelet Transform | 執筆形態 | 単著 | 掲載誌名 | AIP Conf. Proceedings | 掲載区分 | 国外 | 出版社・発行元 | American Institute of Physics | 巻・号・頁 | 1168,pp.781-784 | 著者・共著者 | HITZER Eckhard | 概要 | We show how for n = 2, 3(mod 4) continuous Clifford (geometric) algebra (GA) Cln‐valued admissible wavelets can be constructed using the similitude group SIM(n). We strictly aim for real geometric interpretation, and replace the imaginary unit i ∊ therefore with a GA blade squaring to −1. Consequences due to non‐commutativity arise. We express the admissibility condition in terms of a Cln Clifford Fourier Transform and then derive a set of important properties such as dilation, translation and rotation covariance, a reproducing kernel, and show how to invert the Clifford wavelet transform. As an example, we introduce Clifford Gabor wavelets. We further invent a generalized Clifford wavelet uncertainty principle. | |
145. |
論文 |
Visualization of fundamental symmetries in nature Proceedings of Fuzzy System Symposium (FSS 2009), Tsukuba, Japan, 14-16 Jul. 2009 (共著) 2009 |
言語種別 | 英語 | 発行・発表の年月 | 2009 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Visualization of fundamental symmetries in nature | 執筆形態 | 共著 | 掲載誌名 | Proceedings of Fuzzy System Symposium (FSS 2009), Tsukuba, Japan, 14-16 Jul. 2009 | 掲載区分 | 国内 | 担当範囲 | Text (most) and graphics. | 著者・共著者 | HITZER Eckhard, C. Perwass | 概要 | Most matter in nature and technology is composed of crystals and crystal grains. A full understanding of the inherent symmetry is vital. A new interactive software tool is demonstrated, that visualizes 3D space group symmetries. The software computes with Clifford (geometric) algebra. The space group visualizer (SGV) is a script for the open source visual CLUCalc, which fully supports geometric algebra computation. In our presentation we will first give some insights into the geometric algebra description of space groups. The symmetry generation data are stored in an XML file, which is read by a special CLUScript in order to generate the visualization. Then we will use the Space Group Visualizer to demonstrate space group selection and give a short interactive computer graphics presentation on how reflections combine to generate all 230 three-dimensional space groups. | |
146. |
論文 |
An Uncertainty Principle for Quaternion Fourier Transform Computer & Mathematics with Applications 56,pp.2398-2410 (共著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | An Uncertainty Principle for Quaternion Fourier Transform | 執筆形態 | 共著 | 掲載誌名 | Computer & Mathematics with Applications | 掲載区分 | 国外 | 出版社・発行元 | Elsevier | 巻・号・頁 | 56,pp.2398-2410 | 著者・共著者 | HITZER Eckhard, B. Mawardi, A. Hayashi, R. Ashino | 概要 | We review the quaternionic Fourier transform (QFT). Using the properties of the QFT we establish an uncertainty principle for the right-sided QFT. This uncertainty principle prescribes a lower bound on the product of the effective widths of quaternion-valued signals in the spatial and frequency domains. It is shown that only a Gaussian quaternion signal minimizes the uncertainty. | DOI | 10.1016/j.camwa.2008.05.032 . | |
147. |
論文 |
Basic Multivector Calculus Proc. of 18th Intelligent Systems Symposium (FAN 2008), 23-24 Oct. 2008, Hiroshima, Japan pp.185-190 (単著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 標題 | Basic Multivector Calculus | 執筆形態 | 単著 | 掲載誌名 | Proc. of 18th Intelligent Systems Symposium (FAN 2008), 23-24 Oct. 2008, Hiroshima, Japan | 巻・号・頁 | pp.185-190 | 著者・共著者 | E. Hitzer | |
148. |
論文 |
Clifford Fourier Transform on Multivector Fields and Uncertainty Principles for Dimensions n = 2 (mod 4) and n = 3 (mod 4) Adv. App. Cliff. Alg. 18(S 3,4),pp.715-736 (共著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Clifford Fourier Transform on Multivector Fields and Uncertainty Principles for Dimensions n = 2 (mod 4) and n = 3 (mod 4) | 執筆形態 | 共著 | 掲載誌名 | Adv. App. Cliff. Alg. | 巻・号・頁 | 18(S 3,4),pp.715-736 | 担当範囲 | Main part of text and computations. | 著者・共著者 | HITZER Eckhard, B. Mawardi | 概要 | First, the basic concepts of the multivector functions, vector differential and vector derivative in geometric algebra are introduced. Second, we define a generalized real Fourier transform on Clifford multivector-valued functions ( f:Rn→Cln,0,n=2,3 (mod 4)). Third, we show a set of important properties of the Clifford Fourier transform on Cl n,0, n = 2, 3 (mod 4) such as differentiation properties, and the Plancherel theorem, independent of special commutation properties. Fourth, we develop and utilize commutation properties for giving explicit formulas for fx m , f ∇ m and for the Clifford convolution. Finally, we apply Clifford Fourier transform properties for proving an uncertainty principle for Cl n,0, n = 2, 3 (mod 4) multivector functions. | DOI | 10.1007/s00006-008-0098-3 | |
149. |
論文 |
Clustering of Questionnaire Based on Features Extracted by Geometric Algebra Proc. Joint 4th Int. Conf. on Soft Comp. and Intel. Sys., and 9th Int. Symp. on Adv. Intel. Sys. pp.798-803 (共著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Clustering of Questionnaire Based on Features Extracted by Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Proc. Joint 4th Int. Conf. on Soft Comp. and Intel. Sys., and 9th Int. Symp. on Adv. Intel. Sys. | 掲載区分 | 国内 | 巻・号・頁 | pp.798-803 | 著者・共著者 | HITZER Eckhard, M. T. Pham, K. Tachibana, T. Yoshikawa, T. Furuhashi | 概要 | Clustering is one of the most useful methods to understand similarity among data. However, most conventional clustering methods do not pay sufficient attention to geometric properties of data. Geometric algebra (GA) is a generalization of complex numbers and of quaternions, and it is able to describe spatial objects and relations between them. In this study we introduce GA to systematically extract geometric features from data. We propose a new clustering method by using various geometric features extracted with GA. We apply the proposed method to clarification of human impressions of a product. In the field of marketing, companies often carry out a questionnaire on consumers for grasping their impressions. Analyzing consumers through the obtained evaluation data enables us to know the tendency of the market and to find problems and/or to make hypotheses that are useful for the development of products. Finally, we discuss clustering results of a questionnaire with/without GA. | |
150. |
論文 |
Coordinate independent update formulas for versor Clifford neurons Proc. Joint 4th Int. Conf. on Soft Comp. and Intel. Sys., and 9th Int. Symp. on Adv. Intel. Sys. pp.814-819 (共著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Coordinate independent update formulas for versor Clifford neurons | 執筆形態 | 共著 | 掲載誌名 | Proc. Joint 4th Int. Conf. on Soft Comp. and Intel. Sys., and 9th Int. Symp. on Adv. Intel. Sys. | 掲載区分 | 国内 | 巻・号・頁 | pp.814-819 | 著者・共著者 | S. Buchholz, HITZER Eckhard, K. Tachibana | 概要 | We study the optimization of neural networks with Clifford geometric algebra versor and spinor nodes. For that purpose important multivector calculus results are introduced. Such nodes are generalizations of real, complex and quaternion spinor nodes. In particular we consider nodes that can learn all proper and improper Euclidean transformations with so-called conformal versors. Thus a single node can correctly compute full 3D screws and rotoinversions with off-origin axis and offorigin points of inversion. The latter is a unique property of our proposed versor neuron. Computing inversions by ordinary real-valued networks is not easily possible due to its nonlinear nature. Simulation on learning inversions illustrating these facts are provided in the paper. | |
151. |
論文 |
Feature Extractions with Geometric Algebra for Classification of Objects Proc. of Int. Joint Conf. on Neural Networks (IJCNN/WCCI2008) Hong Kong, China, 1-4 Jun. 2008 pp.4069-4073 (共著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Feature Extractions with Geometric Algebra for Classification of Objects | 執筆形態 | 共著 | 掲載誌名 | Proc. of Int. Joint Conf. on Neural Networks (IJCNN/WCCI2008) Hong Kong, China, 1-4 Jun. 2008 | 掲載区分 | 国外 | 出版社・発行元 | IEEE | 巻・号・頁 | pp.4069-4073 | 著者・共著者 | M. T. Pham, K. Tachibana, HITZER Eckhard, S. Buchholz, T. Yoshikawa, T. Furuhashi | 概要 | Most conventional methods of feature extraction do not pay much attention to the geometric properties of data, even in cases where the data have spatial features. In this study we introduce geometric algebra to undertake various kinds of feature extraction from spatial data. Geometric algebra is a generalization of complex numbers and of quaternions, and it is able to describe spatial objects and relations between them. This paper proposes to use geometric algebra to systematically extract geometric features from data given in a vector space. We show the results of classification of hand-written digits, which were classified by feature extraction with the proposed method. | |
152. |
論文 |
Geometric operations implemented by conformal geometric algebra neural nodes Proc. SICE Symposium on Systems and Information 2008, 26-28 Nov. 2008, Himeji, Japan pp.357 – 362 (単著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 査読 | 査読あり | 標題 | Geometric operations implemented by conformal geometric algebra neural nodes | 執筆形態 | 単著 | 掲載誌名 | Proc. SICE Symposium on Systems and Information 2008, 26-28 Nov. 2008, Himeji, Japan | 掲載区分 | 国内 | 巻・号・頁 | pp.357 – 362 | 著者・共著者 | HITZER Eckhard | 概要 | Geometric algebra is an optimal frame work for calculating with vectors. The geometric algebra of a space includes elements that represent all the its subspaces (lines, planes, volumes, ...). Conformal geometric algebra expands this approach to elementary representations of arbitrary points, point pairs, lines, circles, planes and spheres. Apart from including curved objects, conformal geometric algebra has an elegant unified quaternion like representation for all proper and improper Euclidean transformations, including reflections at spheres, general screw transformations and scaling. Expanding the concepts of real and complex neuronswe arrive at the new powerful concept of conformal geometric algebra neurons. These neurons can easily take the above mentioned geometric objects or sets of these objects as inputs and apply a wide range of geometric transformations via the geometric algebra valued weights. | |
153. |
論文 |
Representation of crystallographic subperiodic groups by geometric algebra in E. Bayro-Corrochano, G. Scheuermann (eds.), Electronic Proc. of AGACSE 3, Leipzig, Germany, 17-19 (共著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Representation of crystallographic subperiodic groups by geometric algebra | 執筆形態 | 共著 | 掲載誌名 | in E. Bayro-Corrochano, G. Scheuermann (eds.), Electronic Proc. of AGACSE 3, Leipzig, Germany, 17-19 | 掲載区分 | 国外 | 著者・共著者 | HITZER Eckhard, D. Ichikawa | 概要 | We explain how following the representation of 3D crystallographic space groups in geometric algebra it is further possible to similarly represent the 162 socalled subperiodic groups of crystallography in geometric algebra. We construct a new compact geometric algebra group representation symbol, which allows to read off the complete set of geometric algebra generators. For clarity we moreover state explicitly what generators are chosen. The group symbols are based on the representation of point groups in geometric algebra by versors (Clifford group, Lipschitz elements). | |
154. |
論文 |
Robust geometric feature extraction and classification Proceedings of ISAMPE 2008, Busan, South Korea, 9-11 Oct. 2008 pp.175-182 (共著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Robust geometric feature extraction and classification | 執筆形態 | 共著 | 掲載誌名 | Proceedings of ISAMPE 2008, Busan, South Korea, 9-11 Oct. 2008 | 巻・号・頁 | pp.175-182 | 著者・共著者 | M. T. Pham, K. Tachibana, E. Hitzer, S. Buchholz, T. Yoshikawa, T. Furuhashi | |
155. |
論文 |
Tutorial Note on Geometric Algebra Neural Networks pp.1-20 (共著) 2008 |
言語種別 | 英語 | 発行・発表の年月 | 2008 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | Tutorial Note on Geometric Algebra Neural Networks | 執筆形態 | 共著 | 掲載区分 | 国外 | 出版社・発行元 | AGACSE 3, Leipzig, Germany | 巻・号・頁 | pp.1-20 | 著者・共著者 | K. Tachibana, E. Hitzer | 概要 | AGACSE 3, Leipzig, Germany, 17-19. Aug. 2008, 20 pages. | |
156. |
論文 |
幾何データからのGeometric Algebra を用いた特徴抽出 統計数理 特集「データマイニングと統計数理」[研究ノート] 56(2),185-198頁 (共著) 2008 |
言語種別 | 日本語 | 発行・発表の年月 | 2008 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | 幾何データからのGeometric Algebra を用いた特徴抽出 | 執筆形態 | 共著 | 掲載誌名 | 統計数理 特集「データマイニングと統計数理」[研究ノート] | 掲載区分 | 国内 | 巻・号・頁 | 56(2),185-198頁 | 著者・共著者 | HITZER Eckhard、Pham Minh Tuan1 ・橘完太 ・Eckhard Hitzer ・Sven Buchholz ・
吉川大弘 ・古橋武 | 概要 | 従来のデータマイニングにおけるパターン認識では,空間的な特徴を含むデータに対して
も幾何的な性質を考慮せずに特徴を抽出する.本研究では,複素数や四元数の一般形である
Geometric Algebra が持つ,空間的な物体や物体間の関係を簡潔に記述できるという長所を活か
して,データの空間的な特徴を抽出する.本稿では,空間ベクトルの系列で与えられるデータ
からの特徴抽出について,Geometric Algebra を用いる系統的な手法を提案する.そして,デー
タが幾何的な特徴を持つ手書き文字の分類問題について,提案手法により従来は偶然または経
験的にしか発見・注目できなかった特徴を抽出でき,分類精度および頑健性が向上することを
示す. | |
157. |
論文 |
Clifford Algebra Cl(3,0)-valued Wavelet Transformation, Clifford Wavelet Uncertainty Inequality and Clifford Gabor Wavelets International Journal of Wavelets, Multiresolution and Information Processing 5(6),pp.997-1019 (共著) 2007 |
言語種別 | 英語 | 発行・発表の年月 | 2007 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Clifford Algebra Cl(3,0)-valued Wavelet Transformation, Clifford Wavelet Uncertainty Inequality and Clifford Gabor Wavelets | 執筆形態 | 共著 | 掲載誌名 | International Journal of Wavelets, Multiresolution and Information Processing | 掲載区分 | 国外 | 出版社・発行元 | World Scientific Singapore | 巻・号・頁 | 5(6),pp.997-1019 | 著者・共著者 | HITZER Eckhard, B. Mawardi | 概要 | In this paper, it is shown how continuous Clifford Cl3,0-valued admissible wavelets can be constructed using the similitude group SIM(3), a subgroup of the affine group of ℝ3. We express the admissibility condition in terms of a Cl3,0 Clifford Fourier transform and then derive a set of important properties such as dilation, translation and rotation covariance, a reproducing kernel, and show how to invert the Clifford wavelet transform of multivector functions. We invent a generalized Clifford wavelet uncertainty principle. For scalar admissibility constant, it sets bounds of accuracy in multivector wavelet signal and image processing. As concrete example, we introduce multivector Clifford Gabor wavelets, and describe important properties such as the Clifford Gabor transform isometry, a reconstruction formula, and an uncertainty principle for Clifford Gabor wavelets. | DOI | 10.1142/S0219691307002166 | |
158. |
論文 |
Introduction to Theory, Construction and Application of Clifford Neural Networks pp.1-14 (共著) 2007 |
言語種別 | 英語 | 発行・発表の年月 | 2007 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | Introduction to Theory, Construction and Application of Clifford Neural Networks | 執筆形態 | 共著 | 掲載区分 | 国内 | 巻・号・頁 | pp.1-14 | 著者・共著者 | S. Buchholz, K. Tachibana, E. Hitzer | 概要 | ICONIP 2007, 14th International Conf. on Neural Information Processing, Japan, 13 Nov. 2007, 14 pp. | |
159. |
論文 |
Optimal Learning Rates for Clifford Neurons International Conference on Artificial Neural Networks, Springer, New York, LNCS 4668,pp.864-873 (共著) 2007 |
言語種別 | 英語 | 発行・発表の年月 | 2007 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Optimal Learning Rates for Clifford Neurons | 執筆形態 | 共著 | 掲載誌名 | International Conference on Artificial Neural Networks, Springer, New York, LNCS | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 4668,pp.864-873 | 著者・共著者 | S. Buchholz, K. Tachibana, HITZER Eckhard | 概要 | Neural computation in Clifford algebras, which include familiar complex numbers and quaternions as special cases, has recently become an active research field. As always, neurons are the atoms of computation. The paper provides a general notion for the Hessian matrix of Clifford neurons of an arbitrary algebra. This new result on the dynamics of Clifford neurons then allows the computation of optimal learning rates. A thorough discussion of error surfaces together with simulation results for different neurons is also provided. The presented contents should give rise to very efficient second–order training methods for Clifford Multi-layer perceptrons in the future. | DOI | 10.1007/978-3-540-74690-4_88 . | |
160. |
論文 |
Quaternion Fourier Transform on Quaternion Fields and Generalizations Advances in Applied Clifford Algebras 17(3),pp.497-517 (単著) 2007 |
言語種別 | 英語 | 発行・発表の年月 | 2007 | 形態種別 | 研究論文(学術雑誌) | 標題 | Quaternion Fourier Transform on Quaternion Fields and Generalizations | 執筆形態 | 単著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Springer. | 巻・号・頁 | 17(3),pp.497-517 | 著者・共著者 | HITZER Eckhard | 概要 | We treat the quaternionic Fourier transform (QFT) applied to quaternion fields and investigate QFT properties useful for applications. Different forms of the QFT lead us to different Plancherel theorems. We relate the QFT computation for quaternion fields to the QFT of real signals. We research the general linear (GL) transformation behavior of the QFT with matrices, Clifford geometric algebra and with examples. We finally arrive at wide-ranging non-commutative multivector FT generalizations of the QFT. Examples given are new volume-time and spacetime algebra Fourier transformations. | DOI | 10.1007/s00006-007-0037-8 | |
161. |
論文 |
Symmetry of orthorhombic materials and interactive 3D visualization in geometric algebra Proceedings of the International Symposium on Advanced Mechanical and Power Engineering 2007 pp.302-312 (共著) 2007 |
言語種別 | 英語 | 発行・発表の年月 | 2007 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Symmetry of orthorhombic materials and interactive 3D visualization in geometric algebra | 執筆形態 | 共著 | 掲載誌名 | Proceedings of the International Symposium on Advanced Mechanical and Power Engineering 2007 | 掲載区分 | 国内 | 巻・号・頁 | pp.302-312 | 著者・共著者 | D. Ichikawa, E. Hitzer | 概要 | Proceedings of the International Symposium on Advanced Mechanical and Power Engineering 2007, between University of Fukui (Japan), Pukyong National University (Korea) and University of Shanghai for Science and Technology (China), 22-25 Nov. 2007, 302-312 (2007). | |
162. |
論文 |
The hidden beauty of gold Proceedings of the International Symposium on Advanced Mechanical and Power Engineering 2007 pp.157-167 (共著) 2007 |
言語種別 | 英語 | 発行・発表の年月 | 2007 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | The hidden beauty of gold | 執筆形態 | 共著 | 掲載誌名 | Proceedings of the International Symposium on Advanced Mechanical and Power Engineering 2007 | 掲載区分 | 国内 | 巻・号・頁 | pp.157-167 | 著者・共著者 | E. Hitzer, C. Perwass | 概要 | Proceedings of the International Symposium on Advanced Mechanical and Power Engineering 2007, between University of Fukui (Japan), Pukyong National University (Korea) and University of Shanghai for Science and Technology (China), 22-25 Nov. 2007, pp. 157-167 (2007). | |
163. |
論文 |
Tutorial on Fourier Transformations and Wavelet Transformations in Clifford Geometric Algebra Lecture notes of the Int. Workshop for “Computational Science with Geometric Algebra” (FCSG pp.65-87 (単著) 2007 |
言語種別 | 英語 | 発行・発表の年月 | 2007 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | Tutorial on Fourier Transformations and Wavelet Transformations in Clifford Geometric Algebra | 執筆形態 | 単著 | 掲載誌名 | Lecture notes of the Int. Workshop for “Computational Science with Geometric Algebra” (FCSG | 掲載区分 | 国内 | 出版社・発行元 | University of Nagoya, Japan. | 巻・号・頁 | pp.65-87 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | in K. Tachibana (ed.), Lecture notes of the International Workshop for “Computational Science with Geometric Algebra” (FCSGA2007), Nagoya University, Japan, 14-21 Feb. 2007, pp. 65-87 (2007). | |
164. |
論文 |
Tutorial on Reflections in Geometric Algebra Lecture notes of the int. Workshop for “Computational Science with Geometric Algebra” (FCSG pp.34-44 (単著) 2007 |
言語種別 | 英語 | 発行・発表の年月 | 2007 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | Tutorial on Reflections in Geometric Algebra | 執筆形態 | 単著 | 掲載誌名 | Lecture notes of the int. Workshop for “Computational Science with Geometric Algebra” (FCSG | 掲載区分 | 国内 | 出版社・発行元 | University of Nagoya, Japan. | 巻・号・頁 | pp.34-44 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | 概要 | in K. Tachibana (ed.), Lecture notes of the international Workshop for “Computational Science with Geometric Algebra” (FCSGA2007), Nagoya University, Japan, 14-21 Feb. 2007, pp. 34-44 (2007). | |
165. |
論文 |
Clifford Algebra Cl(3,0)-valued Wavelets and Uncertainty Inequality for Clifford Gabor Wavelet Transformation Preprints of Meeting of the Japan Society for Industrial and Applied Mathematics, ISSN: 1345-3378 pp.64-65 (共著) 2006 |
言語種別 | 英語 | 発行・発表の年月 | 2006 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 標題 | Clifford Algebra Cl(3,0)-valued Wavelets and Uncertainty Inequality for Clifford Gabor Wavelet Transformation | 執筆形態 | 共著 | 掲載誌名 | Preprints of Meeting of the Japan Society for Industrial and Applied Mathematics, ISSN: 1345-3378 | 掲載区分 | 国内 | 巻・号・頁 | pp.64-65 | 著者・共著者 | B. Mawardi, E. Hitzer | ISSN | 1345-3378 | |
166. |
論文 |
Clifford Fourier Transformation and Uncertainty Principle for the Clifford Geometric Algebra Cl(3,0) Advances in Applied Clifford Algebras 16(1),pp.41-61 (共著) 2006 |
言語種別 | 英語 | 発行・発表の年月 | 2006 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Clifford Fourier Transformation and Uncertainty Principle for the Clifford Geometric Algebra Cl(3,0) | 執筆形態 | 共著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland | 巻・号・頁 | 16(1),pp.41-61 | 著者・共著者 | HITZER Eckhard, B. Mawardi | 概要 | First, the basic concept of the vector derivative in geometric algebra is introduced. Second, beginning with the Fourier transform on a scalar function we generalize to a real Fourier transform on Clifford multivector-valued functions (f:\user2R3→Cl3,0). Third, we show a set of important properties of the Clifford Fourier transform on Cl 3,0 such as differentiation properties, and the Plancherel theorem. Finally, we apply the Clifford Fourier transform properties for proving an uncertainty principle for Cl 3,0 multivector functions. | DOI | 10.1007/s00006-006-0003-x | |
167. |
論文 |
Crystallographic space groups: Representation and interactive visualization by geometric algebra Vixra preprint server. (共著) 2006 |
言語種別 | 英語 | 発行・発表の年月 | 2006 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | Crystallographic space groups: Representation and interactive visualization by geometric algebra | 執筆形態 | 共著 | 掲載誌名 | Vixra preprint server. | 掲載区分 | 国外 | 出版社・発行元 | Vixra preprint server. | 担当範囲 | Symbolic computations and text. | 著者・共著者 | E. Hitzer, C. Perwass | 概要 | contribution to Proceedings of the 26th Int. Conference on Group Theoretical Methods in Physics, New York, USA, 2006. | |
168. |
論文 |
Foundations of Multidimensional Wavelet Theory: The Quaternion Fourier Transform and its Generalizations Preprints of Meeting of the Japan Society for Industrial and Applied Mathematics, ISSN: 1345-3378 pp.66-67 (単著) 2006 |
言語種別 | 英語 | 発行・発表の年月 | 2006 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 標題 | Foundations of Multidimensional Wavelet Theory: The Quaternion Fourier Transform and its Generalizations | 執筆形態 | 単著 | 掲載誌名 | Preprints of Meeting of the Japan Society for Industrial and Applied Mathematics, ISSN: 1345-3378 | 掲載区分 | 国内 | 巻・号・頁 | pp.66-67 | 著者・共著者 | E. Hitzer | ISSN | 1345-3378 | |
169. |
論文 |
Space Group Visualizer for Monoclinic Space Groups Bulletin of the Society for Science on Form 21(1),pp.38-39 (共著) 2006 |
言語種別 | 英語 | 発行・発表の年月 | 2006 | 形態種別 | 研究論文(研究会,シンポジウム資料等) | 標題 | Space Group Visualizer for Monoclinic Space Groups | 執筆形態 | 共著 | 掲載誌名 | Bulletin of the Society for Science on Form | 巻・号・頁 | 21(1),pp.38-39 | 著者・共著者 | C. Perwass, E. Hitzer | |
170. |
論文 |
The Space Group Visualizer Proceedings of the International Symposium on Advanced Mechanical Engineering, Pusan, 2006. pp.172-181 (共著) 2006 |
言語種別 | 英語 | 発行・発表の年月 | 2006 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | The Space Group Visualizer | 執筆形態 | 共著 | 掲載誌名 | Proceedings of the International Symposium on Advanced Mechanical Engineering, Pusan, 2006. | 掲載区分 | 国外 | 巻・号・頁 | pp.172-181 | 著者・共著者 | E. Hitzer, C. Perwass | |
171. |
論文 |
Three Vector Generation of Crystal Space Groups in Geometric Algebra Bulletin of the Society for Science on Form 21(1),pp.55-56 (共著) 2006 |
言語種別 | 英語 | 発行・発表の年月 | 2006 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Three Vector Generation of Crystal Space Groups in Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Bulletin of the Society for Science on Form | 巻・号・頁 | 21(1),pp.55-56 | 著者・共著者 | E. Hitzer, C. Perwass | |
172. |
論文 |
Uncertainty Principle for Clifford Geometric Algebras Cl_{n,0} , n = 3 (mod 4) based on Clifford Fourier Transform Springer (SCI) Book Series Applied and Numerical Harmonic Analysis pp.45-54 (共著) 2006 |
言語種別 | 英語 | 発行・発表の年月 | 2006 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Uncertainty Principle for Clifford Geometric Algebras Cl_{n,0} , n = 3 (mod 4) based on Clifford Fourier Transform | 執筆形態 | 共著 | 掲載誌名 | Springer (SCI) Book Series Applied and Numerical Harmonic Analysis | 巻・号・頁 | pp.45-54 | 著者・共著者 | HITZER Eckhard, B. Mawardi | 概要 | First, the basic concepts of the multivector functions, vector differential and vector derivative in geometric algebra are introduced. Second, we define a generalized real Fourier transform on Clifford multivector-valued functions (f : ℝn → Cl n,0, n = 3 (mod 4)). Third, we introduce a set of important properties of the Clifford Fourier transform on Cl n,0, n = 3 (mod 4) such as differentiation properties, and the Plancherel theorem. Finally, we apply the Clifford Fourier transform properties for proving a directional uncertainty principle for Cl n,0 n = 3 (mod 4) multivector functions. | DOI | 10.1007/978-3-7643-7778-6_6 | |
173. |
論文 |
Conic Sections and Meet Intersections in Geometric Algebra Springer, Lecture Notes in Computer Science, 3519 3519,pp.350-362 (単著) 2005 |
言語種別 | 英語 | 発行・発表の年月 | 2005 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Conic Sections and Meet Intersections in Geometric Algebra | 執筆形態 | 単著 | 掲載誌名 | Springer, Lecture Notes in Computer Science, 3519 | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 3519,pp.350-362 | 著者・共著者 | HITZER Eckhard | 概要 | This paper first gives a brief overview over some interesting descriptions of conic sections, showing formulations in the three geometric algebras of Euclidean spaces, projective spaces, and the conformal model of Euclidean space. Second the conformal model descriptions of a subset of conic sections are listed in parametrizations specific for the use in the main part of the paper. In the third main part the meets of lines and circles, and of spheres and planes are calculated for all cases of real and virtual intersections. In the discussion special attention is on the hyperbolic carriers of the virtual intersections. | DOI | 10.1007/11499251_25 | |
174. |
論文 |
Crystal Cell and Space Lattice Symmetries in Clifford Geometric Algebra International Conference on Numerical Analysis and Applied Mathematics 2005, Wiley-VCH, Weinheim, 20 pp.937-941 (共著) 2005 |
言語種別 | 英語 | 発行・発表の年月 | 2005 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Crystal Cell and Space Lattice Symmetries in Clifford Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | International Conference on Numerical Analysis and Applied Mathematics 2005, Wiley-VCH, Weinheim, 20 | 掲載区分 | 国外 | 出版社・発行元 | Wiley-VCH | 巻・号・頁 | pp.937-941 | 著者・共著者 | HITZER Eckhard, C. Perwass | 概要 | The structure of crystal cells in two and three dimensions is fundamental for many material properties. Many elements, including Aluminium, Copper and Iron have e.g. cubic unit cells. ... Today some 80\% of crystal structure analysis is carried out on crystallized biomolecules with huge investments from pharmaceutical companies.
In two dimensions atoms (or molecules) often group together in triangles, squares and hexagons (regular polygons). Crystal cells in three dimensions have triclinic, monoclinic, orthorhombic, hexagonal, rhombohedral, tetragonal and cubic shapes (see Fig. 1). | |
175. |
論文 |
Full Geometric Description of All Symmetry Elements of Crystal Space Groups by the Suitable Choice of Only Three Vectors for Each Bravais Cell or Crystal Family Proceedings of the International Symposium on Advanced Mechanical Engineering, Pusan, 2005. pp.19-25 (共著) 2005 |
言語種別 | 英語 | 発行・発表の年月 | 2005 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Full Geometric Description of All Symmetry Elements of Crystal Space Groups by the Suitable Choice of Only Three Vectors for Each Bravais Cell or Crystal Family | 執筆形態 | 共著 | 掲載誌名 | Proceedings of the International Symposium on Advanced Mechanical Engineering, Pusan, 2005. | 掲載区分 | 国外 | 巻・号・頁 | pp.19-25 | 著者・共著者 | E. Hitzer, C. Perwass | |
176. |
論文 |
Interactive Visualization of Full Geometric Description of Crystal Space Groups Proceedings of the International Symposium on Advanced Mechanical Engineering, Pusan, 2005. pp.276-282 (共著) 2005 |
言語種別 | 英語 | 発行・発表の年月 | 2005 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Interactive Visualization of Full Geometric Description of Crystal Space Groups | 執筆形態 | 共著 | 掲載誌名 | Proceedings of the International Symposium on Advanced Mechanical Engineering, Pusan, 2005. | 掲載区分 | 国外 | 巻・号・頁 | pp.276-282 | 著者・共著者 | C. Perwass, E. Hitzer | |
177. |
論文 |
Relativistic Physics as Application of Geometric Algebra Proceedings of the International Conference on Relativity 2005. pp.71-90 (単著) 2005 |
言語種別 | 英語 | 発行・発表の年月 | 2005 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Relativistic Physics as Application of Geometric Algebra | 執筆形態 | 単著 | 掲載誌名 | Proceedings of the International Conference on Relativity 2005. | 掲載区分 | 国外 | 出版社・発行元 | University of Amravati, India, 2005. | 巻・号・頁 | pp.71-90 | 著者・共著者 | E. Hitzer | |
178. |
論文 |
The Bottom of Mathematics Education University of Fukui, Fac. Dev. Forum 7,12-12頁 (単著) 2005 |
言語種別 | 日本語 | 発行・発表の年月 | 2005 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | The Bottom of Mathematics Education | 執筆形態 | 単著 | 掲載誌名 | University of Fukui, Fac. Dev. Forum | 掲載区分 | 国内 | 出版社・発行元 | University of Fukui, Japan. | 巻・号・頁 | 7,12-12頁 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
179. |
論文 |
The GeometricAlgebra Java Package - Novel Structure Implementation of 5D Geometric Algebra R_(4,1) for Object Oriented Euclidean Geometry, Space-Time Physics and Object Oriented Computer Algebra Mem. Fac. Eng. Univ. Fukui 53(1),pp.47-59 (共著) 2005 |
言語種別 | 英語 | 発行・発表の年月 | 2005 | 形態種別 | 研究論文(大学,研究機関紀要) | 標題 | The GeometricAlgebra Java Package - Novel Structure Implementation of 5D Geometric Algebra R_(4,1) for Object Oriented Euclidean Geometry, Space-Time Physics and Object Oriented Computer Algebra | 執筆形態 | 共著 | 掲載誌名 | Mem. Fac. Eng. Univ. Fukui | 掲載区分 | 国内 | 出版社・発行元 | University of Fukui | 巻・号・頁 | 53(1),pp.47-59 | 著者・共著者 | E. Hitzer, G. Utama | |
180. |
論文 |
Uncertainty Principle for the Clifford Geometric Algebra Cl(3,0) based on Clifford Fourier Transform International Conference on Numerical Analysis and Applied Mathematics 2005 pp.922-925 (共著) 2005 |
言語種別 | 英語 | 発行・発表の年月 | 2005 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Uncertainty Principle for the Clifford Geometric Algebra Cl(3,0) based on Clifford Fourier Transform | 執筆形態 | 共著 | 掲載誌名 | International Conference on Numerical Analysis and Applied Mathematics 2005 | 掲載区分 | 国外 | 出版社・発行元 | Wiley-VCH | 巻・号・頁 | pp.922-925 | 著者・共著者 | HITZER Eckhard, B. Mawardi | 概要 | In the field of applied mathematics the Fourier transform has developed into an important tool. It is a powerful method for solving partial differential equations. The Fourier transform provides also a technique for signal analysis where the signal from the original domain is transformed to the spectral or frequency domain. In the frequency domain many characteristics of the signal are revealed. With these facts in mind, we extend the Fourier transform in geometric algebra. ...
In this paper we adopt and expand the generalization of the Fourier transform in Clifford geometric algebra G_3 recently suggested by Ebling and Scheuermann [5]. We explicitly show detailed properties of the real Clifford geometric algebra Fourier transform (CFT), which we subsequently use to define and prove the uncertainty principle for G_3 multivector functions. | |
181. |
論文 |
6-[3-Hydroxy-17-oxoestra-1,3,5(10)-trien-7[beta]-yl]hexanenitrile Acta Crystallographica Section C 60(2),pp.o130-o132 (共著) 2004 |
言語種別 | 英語 | 発行・発表の年月 | 2004 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | 6-[3-Hydroxy-17-oxoestra-1,3,5(10)-trien-7[beta]-yl]hexanenitrile | 執筆形態 | 共著 | 掲載誌名 | Acta Crystallographica Section C | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | 60(2),pp.o130-o132 | 担当範囲 | Computations. | 著者・共著者 | C. Yamamoto, T. Matsumoto, M. Watanabe, E. HITZER, S. Mataka and T. Thiema | 概要 | In the title compound, C24H31NO2, ring B adopts a conformation between the boat and twisted-boat forms. This conformation best accommodates adverse intramolecular H...H interactions between the H atoms of the 7[beta]-substituent and the two nearest ring H atoms. The tilt angle between rings A and D is 28.6 (1)°. | DOI | 10.1107/S010827010302866X | |
182. |
論文 |
Crystal Cells in Geometric Algebra Proceedings of the International Symposium on Advanced Mechanical Engineering, Fukui, 2004. pp.290-295 (共著) 2004 |
言語種別 | 英語 | 発行・発表の年月 | 2004 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Crystal Cells in Geometric Algebra | 執筆形態 | 共著 | 掲載誌名 | Proceedings of the International Symposium on Advanced Mechanical Engineering, Fukui, 2004. | 掲載区分 | 国内 | 巻・号・頁 | pp.290-295 | 著者・共著者 | E. Hitzer, C. Perwass | |
183. |
論文 |
English Education Reform University of Fukui, Fac. Dev. Forum 4,pp.11-11 (単著) 2004 |
言語種別 | 英語 | 発行・発表の年月 | 2004 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | English Education Reform | 執筆形態 | 単著 | 掲載誌名 | University of Fukui, Fac. Dev. Forum | 掲載区分 | 国内 | 出版社・発行元 | University of Fukui, Japan. | 巻・号・頁 | 4,pp.11-11 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
184. |
論文 |
Euclidean Geometric Objects in the Clifford Geometric Algebra of {Origin, 3-Space, Infinity} Bulletin of the Belgian Mathematical Society - Simon Stevin 11(5),pp.653-662 (単著) 2004 |
言語種別 | 英語 | 発行・発表の年月 | 2004 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Euclidean Geometric Objects in the Clifford Geometric Algebra of {Origin, 3-Space, Infinity} | 執筆形態 | 単著 | 掲載誌名 | Bulletin of the Belgian Mathematical Society - Simon Stevin | 掲載区分 | 国外 | 出版社・発行元 | Belgian Mathematical Society | 巻・号・頁 | 11(5),pp.653-662 | 著者・共著者 | HITZER Eckhard | 概要 | This paper concentrates on the homogeneous (conformal) model of Euclidean space (Horosphere) with subspaces that intuitively correspond to Euclidean geometric objects in three dimensions. Mathematical details of the construction and (useful) parametrizations of the 3D Euclidean object models are explicitly demonstrated in order to show how 3D Euclidean information on positions, orientations and radii can be extracted. | |
185. |
論文 |
New Ways for Physics Education University of Fukui, Fac. Dev. Forum 5,pp.12-12 (単著) 2004 |
言語種別 | 英語 | 発行・発表の年月 | 2004 | 形態種別 | 機関テクニカルレポート,プレプリント等 | 標題 | New Ways for Physics Education | 執筆形態 | 単著 | 掲載誌名 | University of Fukui, Fac. Dev. Forum | 掲載区分 | 国内 | 出版社・発行元 | University of Fukui, Japan. | 巻・号・頁 | 5,pp.12-12 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
186. |
論文 |
What is an imaginary number? Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 pp.1-4 (単著) 2004 |
言語種別 | 英語 | 発行・発表の年月 | 2004 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | What is an imaginary number? | 執筆形態 | 単著 | 掲載誌名 | Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 | 掲載区分 | 国内 | 巻・号・頁 | pp.1-4 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
187. |
論文 |
Axioms of Geometric Algebra Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008. pp.1-8 (単著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | Axioms of Geometric Algebra | 執筆形態 | 単著 | 掲載誌名 | Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008. | 掲載区分 | 国内 | 巻・号・頁 | pp.1-8 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
188. |
論文 |
Conic sections through five points - classical, projective, conformal Proceedings of the International Symposium 2003 of Advanced Mechanical Engineering, Pusan, 2003. pp.109-114 (単著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Conic sections through five points - classical, projective, conformal | 執筆形態 | 単著 | 掲載誌名 | Proceedings of the International Symposium 2003 of Advanced Mechanical Engineering, Pusan, 2003. | 掲載区分 | 国外 | 巻・号・頁 | pp.109-114 | 著者・共著者 | E. Hitzer | |
189. |
論文 |
Determinants in Geometric Algebra Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 pp.1-3 (単著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | Determinants in Geometric Algebra | 執筆形態 | 単著 | 掲載誌名 | Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 | 掲載区分 | 国内 | 巻・号・頁 | pp.1-3 | |
190. |
論文 |
Geometric Algebra illustrated by Cinderella Advances in Applied Clifford Algebras 13(2),pp.157-181 (共著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Geometric Algebra illustrated by Cinderella | 執筆形態 | 共著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 13(2),pp.157-181 | 担当範囲 | Most of text and graphics. | 著者・共著者 | HITZER Eckhard, Luca Redaelli | 概要 | Conventional illustrations of the rich elementary relations and physical applications of geometric algebra are helpful, but restricted in communicating full generality and time dependence. Up till now very little animated and fully interactive, free, instant access, online material is available.
This report presents therefore a set of over 90 newly developed (freely online accessible) JAVA applets. These applets range from the elementary concepts of vector, bivector, outer product and rotations to triangle relationships, oscillations and polarized waves. A special group of 21 applets illustrates three geometrically different approaches to the representation of conics; and even more ways to describe ellipses. | DOI | 10.1007/s00006-003-0013-x | |
191. |
論文 |
Gram-Schmidt Orthogonalization in Geometric Algebra Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 pp.1-2 (単著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | Gram-Schmidt Orthogonalization in Geometric Algebra | 執筆形態 | 単著 | 掲載誌名 | Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 | 掲載区分 | 国内 | 巻・号・頁 | pp.1-2 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
192. |
論文 |
KamiWaAi - Interactive 3D Sketching with Java based on Cl(4,1) Conformal Model of Euclidean Space Advances in Applied Clifford Algebras 13(1),pp.11-45 (単著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | KamiWaAi - Interactive 3D Sketching with Java based on Cl(4,1) Conformal Model of Euclidean Space | 執筆形態 | 単著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 13(1),pp.11-45 | 著者・共著者 | HITZER Eckhard | 概要 | This paper introduces the new interactive Java sketching software KamiWaAi. Its graphical user interface enables the user without any knowledge of both mathematics or computer science, to do full three dimensional “drawings” on the screen. The resulting constructions can be reshaped interactively by dragging its points over the screen. KamiWaAi implements geometric objects like points, lines, circles, spheres, etc. directly as software objects (Java classes) of the same name. | DOI | 10.1007/s00006-003-0004-y | |
193. |
論文 |
Learning about Conic Sections with Geometric Algebra and Cinderella Proc. of the Symposium Innovative Teaching of Mathematics with Geometric Algebra 2003 pp.89-104 (単著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Learning about Conic Sections with Geometric Algebra and Cinderella | 執筆形態 | 単著 | 掲載誌名 | Proc. of the Symposium Innovative Teaching of Mathematics with Geometric Algebra 2003 | 掲載区分 | 国内 | 出版社・発行元 | Kyoto University RIMS | 巻・号・頁 | pp.89-104 | 著者・共著者 | E. Hitzer | |
194. |
論文 |
The geometric product and derived products Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 pp.1-11 (単著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | The geometric product and derived products | 執筆形態 | 単著 | 掲載誌名 | Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 | 掲載区分 | 国内 | 巻・号・頁 | pp.1-11 | |
195. |
論文 |
The use of quadratic forms in geometric algebra Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 pp.1-6 (単著) 2003 |
言語種別 | 英語 | 発行・発表の年月 | 2003 | 形態種別 | 講演資料等(セミナー,チュートリアル,講習,講義他) | 標題 | The use of quadratic forms in geometric algebra | 執筆形態 | 単著 | 掲載誌名 | Support Website for the Linear Algebra Lectures of the University of the Air Japan 2004-2008 | 掲載区分 | 国内 | 巻・号・頁 | pp.1-6 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
196. |
論文 |
Geometric Calculus - Engineering Mathematics for the 21st Century Mem. Fac. Eng. Fukui Univ. 50(1),pp.127-137 (単著) 2002 |
言語種別 | 英語 | 発行・発表の年月 | 2002 | 形態種別 | 研究論文(大学,研究機関紀要) | 標題 | Geometric Calculus - Engineering Mathematics for the 21st Century | 執筆形態 | 単著 | 掲載誌名 | Mem. Fac. Eng. Fukui Univ. | 掲載区分 | 国内 | 出版社・発行元 | University of Fukui | 巻・号・頁 | 50(1),pp.127-137 | 担当範囲 | Everything. | 著者・共著者 | Eckhard Hitzer | |
197. |
論文 |
Multivector Differential Calculus Advances in Applied Clifford Algebras 12(2),pp.135-182 (単著) 2002 |
言語種別 | 英語 | 発行・発表の年月 | 2002 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Multivector Differential Calculus | 執筆形態 | 単著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 12(2),pp.135-182 | 著者・共著者 | HITZER Eckhard | 概要 | Universal geometric calculus simplifies and unifies the structure and notation of mathematics for all of science and engineering, and for technological applications. This paper treats the fundamentals of the multivector differential calculus part of geometric calculus. The multivector differential is introduced, followed by the multivector derivative and the adjoint of multivector functions. The basic rules of multivector differentiation are derived explicitly, as well as a variety of basic multivector derivatives. | DOI | 10.1007/BF03161244 | |
198. |
論文 |
Play with Geometry - Animated and Interactive, Free, Instant Access, Online Geometric Algebra Java Applets Proceedings of Fukui Univ. Int. Congress, Int. Symp. on Advanced Mech. Engineering, Fukui, 2002. pp.7-12 (共著) 2002 |
言語種別 | 英語 | 発行・発表の年月 | 2002 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Play with Geometry - Animated and Interactive, Free, Instant Access, Online Geometric Algebra Java Applets | 執筆形態 | 共著 | 掲載誌名 | Proceedings of Fukui Univ. Int. Congress, Int. Symp. on Advanced Mech. Engineering, Fukui, 2002. | 掲載区分 | 国内 | 出版社・発行元 | University of Fukui, 2002. | 巻・号・頁 | pp.7-12 | 担当範囲 | Most of text and graphics. | 著者・共著者 | E. Hitzer, L. Redaelli | |
199. |
論文 |
Vector Differential Calculus Mem. Fac. Eng. Fukui Univ. 50(1),pp.127-137 (単著) 2002 |
言語種別 | 英語 | 発行・発表の年月 | 2002 | 形態種別 | 研究論文(大学,研究機関紀要) | 標題 | Vector Differential Calculus | 執筆形態 | 単著 | 掲載誌名 | Mem. Fac. Eng. Fukui Univ. | 掲載区分 | 国内 | 出版社・発行元 | University of Fukui. | 巻・号・頁 | 50(1),pp.127-137 | 著者・共著者 | E. Hitzer | |
200. |
論文 |
A real explanation for imaginary eigenvalues and complex eigenvectors Proc. of the Nat. Symp. on Mathematical Sciences, 1-5 March, 2001, Nagpur, India. 1,pp.1-26 (単著) 2001 |
言語種別 | 英語 | 発行・発表の年月 | 2001 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | A real explanation for imaginary eigenvalues and complex eigenvectors | 執筆形態 | 単著 | 掲載誌名 | Proc. of the Nat. Symp. on Mathematical Sciences, 1-5 March, 2001, Nagpur, India. | 掲載区分 | 国外 | 出版社・発行元 | University of Nagpur, Nagpur, India. | 巻・号・頁 | 1,pp.1-26 | 著者・共著者 | E. Hitzer | |
201. |
論文 |
Antisymmetric Matrices are Real Bivectors Mem. Fac. Eng. Fukui Univ. 49(2),pp.283-298 (単著) 2001 |
言語種別 | 英語 | 発行・発表の年月 | 2001 | 形態種別 | 研究論文(大学,研究機関紀要) | 標題 | Antisymmetric Matrices are Real Bivectors | 執筆形態 | 単著 | 掲載誌名 | Mem. Fac. Eng. Fukui Univ. | 掲載区分 | 国内 | 出版社・発行元 | University of Fukui. | 巻・号・頁 | 49(2),pp.283-298 | 著者・共著者 | E. Hitzer | |
202. |
論文 |
Early works on the Hagen-Poiseuille flow Mem. Fac. Eng. Fukui Univ. 49(1),pp.45-53 (単著) 2001 |
言語種別 | 英語 | 発行・発表の年月 | 2001 | 形態種別 | 研究論文(大学,研究機関紀要) | 招待論文 | 招待あり | 標題 | Early works on the Hagen-Poiseuille flow | 執筆形態 | 単著 | 掲載誌名 | Mem. Fac. Eng. Fukui Univ. | 掲載区分 | 国内 | 出版社・発行元 | University of Fukui. | 巻・号・頁 | 49(1),pp.45-53 | 著者・共著者 | E. Hitzer | |
203. |
論文 |
Geometric Calculus for Engineers Proc. of the Pukyong National University - Fukui University International Symposium 2001 pp.59-66 (単著) 2001 |
言語種別 | 英語 | 発行・発表の年月 | 2001 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Geometric Calculus for Engineers | 執筆形態 | 単著 | 掲載誌名 | Proc. of the Pukyong National University - Fukui University International Symposium 2001 | 掲載区分 | 国外 | 出版社・発行元 | Pukyong National University, Busan, Korea | 巻・号・頁 | pp.59-66 | 著者・共著者 | E. Hitzer | |
204. |
論文 |
Imaginary eigenvalues and complex eigenvectors explained by real geometry Applied Geometrical Algebras in Computer Science and Engineering, AGACSE 2001, Birkhauser pp.145-153 (単著) 2001 |
言語種別 | 英語 | 発行・発表の年月 | 2001 | 形態種別 | 研究論文(国際会議プロシーディングス) | 査読 | 査読あり | 標題 | Imaginary eigenvalues and complex eigenvectors explained by real geometry | 執筆形態 | 単著 | 掲載誌名 | Applied Geometrical Algebras in Computer Science and Engineering, AGACSE 2001, Birkhauser | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | pp.145-153 | 著者・共著者 | HITZER Eckhard | 概要 | This paper first reviews how anti-symmetric matrices in two dimensions yield imaginary eigenvalues and complex eigenvectors. It is shown how this carries on to rotations by means of the Cayley transformation. Then a real geometric interpretation is given to the eigenvalues and eigenvectors by means of real geometric algebra. The eigenvectors are seen to be two component eigenspinors which can be further reduced to underlying vector duplets. The eigenvalues are interpreted as rotation operators, which rotate the underlying vector duplets. The second part of this paper extends and generalizes the treatment to three dimensions. Finally the four-dimensional problem is stated. | |
205. |
論文 |
Classical and Semi-Classical Optics with MAPLE: Investigating a Two-dimensional Light Ray Geometry Proceedings of Teaching Computational Physics, 12th Summer School on Com. Techn. in Physics pp.54-56 (単著) 2000 |
言語種別 | 英語 | 発行・発表の年月 | 2000 | 形態種別 | 研究論文(国際会議プロシーディングス) | 標題 | Classical and Semi-Classical Optics with MAPLE: Investigating a Two-dimensional Light Ray Geometry | 執筆形態 | 単著 | 掲載誌名 | Proceedings of Teaching Computational Physics, 12th Summer School on Com. Techn. in Physics | 掲載区分 | 国外 | 巻・号・頁 | pp.54-56 | 著者・共著者 | E. Hitzer | |
206. |
論文 |
Closed Light Paths in Equiangular Spiral Disks Advances in Applied Clifford Algebras 10(2),pp.225-257 (単著) 2000 |
言語種別 | 英語 | 発行・発表の年月 | 2000 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Closed Light Paths in Equiangular Spiral Disks | 執筆形態 | 単著 | 掲載誌名 | Advances in Applied Clifford Algebras | 掲載区分 | 国外 | 出版社・発行元 | Birkhaeuser, Basel, Switzerland. | 巻・号・頁 | 10(2),pp.225-257 | 著者・共著者 | HITZER Eckhard | 概要 | A new type of deformation for microscopic laser disks, the equiangular spiral deformation is proposed. First a short review of the geometry of light paths in equiangular spirals in the language of real two-dimensional geometric calculus is given. Second, the constituting equations for closed paths inside equiangular spirals are derived. Third, their numerical solution is performed and found to yield two generic types of closed light paths. Degenerate closed paths that exist over large intervals of the deformation parameter, and nondegenerate closed paths which only exist over relatively small deformation parameter intervals spanning less than 1% of the nondegenerate intervals. Fourth, amongst the nondegenerate paths a stable asymmetric bow-tie shaped light trajectory was found. | DOI | 10.1007/s00006-000-0005-z | |
207. |
論文 |
The Geometry of Light Paths for Equiangular Spirals Advances in Applied Clifford Algebras 9(2),pp.261-286 (単著) 1999 |
言語種別 | 英語 | 発行・発表の年月 | 1999 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | The Geometry of Light Paths for Equiangular Spirals | 執筆形態 | 単著 | 掲載誌名 | Advances in Applied Clifford Algebras | 巻・号・頁 | 9(2),pp.261-286 | 著者・共著者 | HITZER Eckhard | 概要 | First geometric calculus alongside its description of equiangular spirals, reflections and rotations is introduced briefly. Then single and double reflections at such a spiral are investigated. It proves suitable to distinguish incidence from theright andleft relative to the radial direction. The properties of geometric light propagation inside the equiangular spiral are discussed, as well as escape conditions and characteristics. Finally the dependence of right and left incidence from the source locations are examined, revealing a well defined innercritical curve, which delimits the area of purely right incident propagation. This critical curve is self similar to the original equiangular spiral. | DOI | 10.1007/BF03042381 | |
208. |
論文 |
New Higgs Field Ansatz for Effective Gravity in Flat Space Time Acta Physica Polonica B 29(4),pp.971-980 (共著) 1998 |
言語種別 | 英語 | 発行・発表の年月 | 1998 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | New Higgs Field Ansatz for Effective Gravity in Flat Space Time | 執筆形態 | 共著 | 掲載誌名 | Acta Physica Polonica B | 巻・号・頁 | 29(4),pp.971-980 | 著者・共著者 | HITZER Eckhard, A. Geitner, M. Hanauske | 概要 | Regarding Pauli's matrices as proper Higgs fields one can deduce an effective approximation for gravity in flat space. In this work we extend this approximation up to the second order, reaching complete agreement in the special case of gravitational waves. Unification in view, we introduce isospinorial degrees of freedom. In this way the mass spectrum and chiral asymmetry can be generated with the help of an additional scalar Higgs field. The Higgs modes corresponding to gravity are discussed. | |
209. |
論文 |
Integration of Einstein's Equations in the Weak-Field Domain Using the "Einstein" Gauge International Journal of Theoretical Physics 36(2),pp.559-567 (共著) 1997 |
言語種別 | 英語 | 発行・発表の年月 | 1997 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Integration of Einstein's Equations in the Weak-Field Domain Using the "Einstein" Gauge | 執筆形態 | 共著 | 掲載誌名 | International Journal of Theoretical Physics | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 36(2),pp.559-567 | 著者・共著者 | HITZER Eckhard, H. Dehnen | 概要 | We propose a new alternative gauge for the Einstein equations instead of the de Donder gauge, which allows in the limit of weak fields a straightforward integration of these equations. The Newtonian potential plays a new and interesting role in this framework. The calculations are demonstrated explicitly for two simple astrophysical models. | DOI | 10.1007/BF02435749 | |
210. |
論文 |
The Higgs-Field Theoretic Extension of the Spin-Gauge Theory of Gravity (単著) 1996 |
言語種別 | 英語 | 発行・発表の年月 | 1996 | 形態種別 | 学位論文(博士) | 標題 | The Higgs-Field Theoretic Extension of the Spin-Gauge Theory of Gravity | 執筆形態 | 単著 | 掲載区分 | 国外 | 出版社・発行元 | Hartung-Gorre, Konstanz, Germany | 総ページ数 | 123 | 担当範囲 | Everything | 担当区分 | 筆頭著者 | 著者・共著者 | Eckhard Hitzer | 原著者 | Eckhard Hitzer | |
211. |
論文 |
SU(2) x U(1) Gauge Gravity International Journal of Theoretical Physics 34(9),pp.1981-2001 (共著) 1995 |
言語種別 | 英語 | 発行・発表の年月 | 1995 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | SU(2) x U(1) Gauge Gravity | 執筆形態 | 共著 | 掲載誌名 | International Journal of Theoretical Physics | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 34(9),pp.1981-2001 | 著者・共著者 | H. Dehnen, E. Hitzer | 概要 | We propose a Lorentz-covariant Yang-Mills “spin-gauge” theory, where the function-valued Pauli matrices play the role of a nonscalar Higgs field. As symmetry group we choose SU(2) × U(1) of the 2-spinors describing particle/antiparticle states. After symmetry breaking, a nonscalar Lorentz-covariant Higgsfield gravity appears, which can be interpreted within a classical limit as Einstein's metrical theory of gravity, where we restrict ourselves in a first step to its linearized version. | DOI | 10.1007/BF00674079 | |
212. |
論文 |
Spin-Gauge Theory of Gravity with Higgs-Field Mechanism International Journal of Theoretical Physics 33(3),pp.575-592 (共著) 1994 |
言語種別 | 英語 | 発行・発表の年月 | 1994 | 形態種別 | 研究論文(学術雑誌) | 査読 | 査読あり | 標題 | Spin-Gauge Theory of Gravity with Higgs-Field Mechanism | 執筆形態 | 共著 | 掲載誌名 | International Journal of Theoretical Physics | 掲載区分 | 国外 | 出版社・発行元 | Springer | 巻・号・頁 | 33(3),pp.575-592 | 著者・共著者 | H. Dehnen, E. Hitzer | 概要 | We propose a Lorentz-covariant Yang-Mills spin-gauge theory, where the function-valued Dirac matrices play the role of a nonscalar Higgs-field. As symmetry group we chooseSU(2) xU(1). After symmetry breaking a nonscalar Lorentz-covariant Higgs-field gravity appears, which can be interpreted within a classical limit as Einstein's metrical theory of gravity, where we restrict ourselves in a first step to its linearized version. | DOI | 10.1007/BF00670517 | |
213. |
その他 |
"Hypercomplex Signal and Image Processing: Part 2 [From the Guest Editors] IEEE Signal Processing Magazine 41(4),pp.18-20 (共著) 2024/08 |
言語種別 | 英語 | 発行・発表の年月 | 2024/08 | 形態種別 | その他 | 標題 | "Hypercomplex Signal and Image Processing: Part 2 [From the Guest Editors] | 執筆形態 | 共著 | 掲載誌名 | IEEE Signal Processing Magazine | 掲載区分 | 国外 | 出版社・発行元 | IEEE | 巻・号・頁 | 41(4),pp.18-20 | 総ページ数 | 3 | 担当範囲 | part of the text | 国際共著 | 国際共著 | 著者・共著者 | N. A. Valous, E. Hitzer, S. Vitabile, S. Bernstein, C. Lavor, D. Abbott, M.E. Luna-Elizarraras, W. Lopes | 原著者 | N. A. Valous, E. Hitzer, S. Vitabile, S. Bernstein, C. Lavor, D. Abbott, M.E. Luna-Elizarraras, W. Lopes | 概要 | N. A. Valous, E. Hitzer, S. Vitabile, S. Bernstein, C. Lavor, D. Abbott, M.E. Luna-Elizarraras, W. Lopes, "Hypercomplex Signal and Image Processing: Part 2 [From the Guest Editors]," in IEEE Signal Processing Magazine, vol. 41, no. 4, pp. 18-20, 20 Aug. 2024, doi: https://doi.org/10.1109/MSP.2024.3415248. URL: https://ieeexplore.ieee.org/document/10640342 | researchmap用URL | https://ieeexplore.ieee.org/document/10640342 | |
214. |
その他 |
Editorial for Special Issue “ENGAGE 22: Geometric Algebra for Graphics & Engineering” Mathematical Methods in the Applied Sciences 47(14),11303-11304頁 (共著) 2024/05 |
言語種別 | 日本語 | 発行・発表の年月 | 2024/05 | 形態種別 | その他 | 標題 | Editorial for Special Issue “ENGAGE 22: Geometric Algebra for Graphics & Engineering” | 執筆形態 | 共著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 巻・号・頁 | 47(14),11303-11304頁 | 総ページ数 | 2 | 担当範囲 | most of the text and coordination | 担当区分 | 筆頭著者 | 国際共著 | 国際共著 | 著者・共著者 | E. Hitzer, G. Papagiannakis, P. Vasik | 原著者 | E. Hitzer, G. Papagiannakis, P. Vasik | 概要 | [133] E. Hitzer, G. Papagiannakis, P. Vasik, Editorial for Special Issue “ENGAGE 22: Geometric Algebra for Graphics & Engineering”, Mathematical Methods in the Applied Sciences, Volume 47, Issue 14, pages 11303-11304, (2024), First published 27 May 2024. DOI: https://doi.org/10.1002/mma.10246 , Sharelink: https://onlinelibrary.wiley.com/share/author/HGEXG3UMQURKRGV5ZSER?target=10.1002/mma.10246 | researchmap用URL | https://onlinelibrary.wiley.com/share/author/HGEXG3UMQURKRGV5ZSER?target=10.1002/mma.10246 | |
215. |
その他 |
"Hypercomplex Signal and Image Processing: Part 1 [From the Guest Editors] IEEE Signal Processing Magazine 41(2),pp.11-13 (共著) 2024/03 |
言語種別 | 英語 | 発行・発表の年月 | 2024/03 | 形態種別 | その他 | 標題 | "Hypercomplex Signal and Image Processing: Part 1 [From the Guest Editors] | 執筆形態 | 共著 | 掲載誌名 | IEEE Signal Processing Magazine | 掲載区分 | 国外 | 出版社・発行元 | IEEE | 巻・号・頁 | 41(2),pp.11-13 | 総ページ数 | 3 | 担当範囲 | Part of the text | 国際共著 | 国際共著 | 著者・共著者 | N. A. Valous, E. Hitzer, S. Vitabile, S. Bernstein, C. Lavor, D. Abbott, M.E. Luna-Elizarraras, W. Lopes | 原著者 | N. A. Valous, E. Hitzer, S. Vitabile, S. Bernstein, C. Lavor, D. Abbott, M.E. Luna-Elizarraras, W. Lopes | 概要 | N. A. Valous, E. Hitzer, S. Vitabile, S. Bernstein, C. Lavor, D. Abbott, M.E. Luna-Elizarraras, W. Lopes, "Hypercomplex Signal and Image Processing: Part 1 [From the Guest Editors]," in IEEE Signal Processing Magazine, vol. 41, no. 2, pp. 11-13, March 2024, doi: 10.1109/MSP.2024.3378129. URL: https://ieeexplore.ieee.org/document/10558747 | researchmap用URL | https://ieeexplore.ieee.org/document/10558747 | |
216. |
その他 |
Editorial of Applied Geometric Algebras in Computer Science and Engineering (AGACSE 21) Mathematical Methods in the Applied Sciences (共著) 2023 |
言語種別 | 英語 | 発行・発表の年月 | 2023 | 形態種別 | その他 | 標題 | Editorial of Applied Geometric Algebras in Computer Science and Engineering (AGACSE 21) | 執筆形態 | 共著 | 掲載誌名 | Mathematical Methods in the Applied Sciences | 掲載区分 | 国外 | 出版社・発行元 | Wiley | 担当範囲 | Part of text | 国際共著 | 国際共著 | 著者・共著者 | P. Vasik, E. Hitzer, C. Lavor | 原著者 | P. Vasik, E. Hitzer, C. Lavor | 概要 | P. Vasik, E. Hitzer, C. Lavor, Editorial of Applied Geometric Algebras in Computer Science and Engineering (AGACSE 21), accepted for Special Issue of Mathematical Methods in the Applied Sciences, Wiley, 2023, DOI: 10.1002/mma.9783 | |
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■ 学会発表
1. |
2024/03/21 |
On Symmetries of Geometric Algebra Cl(3,1) for Space-Time(Int. Conf. on Hypercomplex Analysis and its Applications - Celebrating Paula Cerejeiras’ 60th birthday) |
発表年月日 | 2024/03/21 | 発表テーマ | On Symmetries of Geometric Algebra Cl(3,1) for Space-Time | 会議名 | Int. Conf. on Hypercomplex Analysis and its Applications - Celebrating Paula Cerejeiras’ 60th birthday | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 国名 | ポルトガル | 開催地名 | Aveiro, Portugal | 開催期間 | 2024/03/18~2024/03/22 | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Invited Lecture: On Symmetries of Geometric Algebra Cl(3,1) for Space-Time, Int. Conf. on Hypercomplex Analysis and its Applications - Celebrating Paula Cerejeiras’ 60th birthday, ICHAA2024, 11 am, 21 Mar. 2024, Dep. of Math., Univ. of Aveiro, Portugal. | |
2. |
2023/12/19 |
Inner Product of Two Oriented Points in Conformal Geometric Algebra of all Dimensions(Workshop on High-dimensional and spatio-temporal neuro-dynamics and its application to the construction of related systems) |
発表年月日 | 2023/12/19 | 発表テーマ | Inner Product of Two Oriented Points in Conformal Geometric Algebra of all Dimensions | 会議名 | Workshop on High-dimensional and spatio-temporal neuro-dynamics and its application to the construction of related systems | 学会区分 | 研究会・シンポジウム等 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 国名 | 日本 | 開催地名 | Sendai, Japan | 開催期間 | 2023/12/19~2023/12/19 | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Invited Lecture: Inner Product of Two Oriented Points in Conformal Geometric Algebra of all Dimensions, Tohoku, Workshop on High-dimensional and spatio-temporal neuro-dynamics and its application to the construction of related systems, RIEC, Tohoku University, Sendai, Japan, 19 Dec. 2023. | |
3. |
2023/10/21 |
Scientific Research - Opportunities and Pitfalls(First Symposium of European Researchers in Japan) |
発表年月日 | 2023/10/21 | 発表テーマ | Scientific Research - Opportunities and Pitfalls | 会議名 | First Symposium of European Researchers in Japan | 学会区分 | 研究会・シンポジウム等 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 国名 | 日本 | 開催地名 | Tokyo | 開催期間 | 2023/10/21~2023/10/21 | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Invited Lecture: Eckhard Hitzer, Scientific Research - Opportunities and Pitfalls, First Symposium of European Researchers in Japan, 21 Oct. 2023, Europa House, Tokyo, Japan. | |
4. |
2023/10/01 |
Man’s Influence on Nature Viewed through the Lenses of Science and Old Testament(ICU ICC 60th Anniversary Symposium, Perspective on Nature and Environmental Ethics in the Old Testament) |
発表年月日 | 2023/10/01 | 発表テーマ | Man’s Influence on Nature Viewed through the Lenses of Science and Old Testament | 会議名 | ICU ICC 60th Anniversary Symposium, Perspective on Nature and Environmental Ethics in the Old Testament | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 国名 | 日本 | 開催地名 | Mitaka, Tokyo | 開催期間 | 2023/09/29~2023/10/01 | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Invited Lecture: Eckhard Hitzer, Man’s Influence on Nature Viewed through the Lenses of Science and Old Testament, ICU ICC 60th Anniversary Symposium, Perspective on Nature and Environmental Ethics in the Old Testament, September 29th - October 1st, 2023, ICU, Mitaka, Japan | |
5. |
2023/08/28 |
Quadratic Phase Quaternion Domain Fourier Transform(Computer Graphics International 2023 (CGI 2023), Workshop Empowering Novel Geometric Algebra for Graphics and Engineering 2023 (ENGAGE 2023)) |
発表年月日 | 2023/08/28 | 発表テーマ | Quadratic Phase Quaternion Domain Fourier Transform | 会議名 | Computer Graphics International 2023 (CGI 2023), Workshop Empowering Novel Geometric Algebra for Graphics and Engineering 2023 (ENGAGE 2023) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 国名 | 中華人民共和国 | 開催地名 | Shanghai | 開催期間 | 2023/08/28~2023/08/28 | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Quadratic Phase Quaternion Domain Fourier Transform, Computer Graphics International 2023 (CGI 2023), Workshop Empowering Novel Geometric Algebra for Graphics and Engineering 2023 (ENGAGE 2023), 12:00pm, 28 Aug. 2023, Marriott Hotel, Shanghai, China. | |
6. |
2023/08/23 |
Geometric Algebra, Airborne Laser Scanning and Oriented Points(The Second International Conference on W.K. Clifford's Geometric Algebra and Geographic Information Science (GAGIS II)) |
発表年月日 | 2023/08/23 | 発表テーマ | Geometric Algebra, Airborne Laser Scanning and Oriented Points | 会議名 | The Second International Conference on W.K. Clifford's Geometric Algebra and Geographic Information Science (GAGIS II) | 学会区分 | 国際学会 | 発表形式 | 口頭(基調) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 国名 | 中華人民共和国 | 開催地名 | Nanjing | 開催期間 | 2023/08/23~2023/08/25 | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Keynote Lecture: Geometric Algebra, Airborne Laser Scanning and Oriented Points, The Second International Conference on W.K. Clifford's Geometric Algebra and Geographic Information Science (GAGIS II), Nanjing Normal University, Nanjing, China, We. 23 Aug. 2023: 9:00-10:00 CST. | |
7. |
2023/01/27 |
Octonion Fourier Transform in Geometric Algebra of R3 and Polar Representations of Octonion Analytic Signals(Workshop on High-dimensional and spatio-temporal neuro-dynamics and its application to the construction of related systems) |
発表年月日 | 2023/01/27 | 発表テーマ | Octonion Fourier Transform in Geometric Algebra of R3 and Polar Representations of Octonion Analytic Signals | 会議名 | Workshop on High-dimensional and spatio-temporal neuro-dynamics and its application to the construction of related systems | 学会区分 | 研究会・シンポジウム等 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 国名 | 日本 | 開催地名 | Tohoku, Sendai | 開催期間 | 2023/01/27~2023/01/27 | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Invited Lecture: Octonion Fourier Transform in Geometric Algebra of R3 and Polar Representations of Octonion Analytic Signals, Tohoku, Workshop on High-dimensional and spatio-temporal neuro-dynamics and its application to the construction of related systems, RIEC, Tohoku University, Sendai, Japan, 27 Jan. 2023. | |
8. |
2022/10/16 |
Quaternions in 2022(Quaternions 179 (online)) |
発表年月日 | 2022/10/16 | 発表テーマ | Quaternions in 2022 | 会議名 | Quaternions 179 (online) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | Eckhard Hitzer | |
9. |
2022/10/05 |
Inner product of two oriented points in conformal geometric algebra(International Conference of Advanced Computational Application of Geometric Algebra (ICACGA 2022)) |
発表年月日 | 2022/10/05 | 発表テーマ | Inner product of two oriented points in conformal geometric algebra | 会議名 | International Conference of Advanced Computational Application of Geometric Algebra (ICACGA 2022) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 国名 | アメリカ合衆国 | 開催地名 | Denver, Colorado | 開催期間 | 2022/10/02~2022/10/05 | 発表者・共同発表者 | Eckhard Hitzer | |
10. |
2022/09/12 |
Embedding of Octonion Fourier Transform in Geometric Algebra of R^3 and Polar Representations of Octonion Analytic Signals(Computer Graphics International 2022 (CGI 2022), Workshop Empowering Novel Geometric Algebra for Graphics and Engineering 2022 (ENGAGE 2022)) |
発表年月日 | 2022/09/12 | 発表テーマ | Embedding of Octonion Fourier Transform in Geometric Algebra of R^3 and Polar Representations of Octonion Analytic Signals | 会議名 | Computer Graphics International 2022 (CGI 2022), Workshop Empowering Novel Geometric Algebra for Graphics and Engineering 2022 (ENGAGE 2022) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 国名 | スイス | 開催地名 | Geneva | 開催期間 | 2022/09/12~2022/09/12 | 発表者・共同発表者 | Eckhard Hitzer | |
11. |
2022/07/06 |
144 years after Clifford’s “Applications of Grassmann’s Extensive Algebra”(Forschungsseminar 'Computergrafik, Bildverarbeitung und Visualisierung') |
発表年月日 | 2022/07/06 | 発表テーマ | 144 years after Clifford’s “Applications of Grassmann’s Extensive Algebra” | 会議名 | Forschungsseminar 'Computergrafik, Bildverarbeitung und Visualisierung' | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 国名 | ドイツ | 開催地名 | Leipzig | 開催期間 | 2022/07/06~2022/07/06 | 発表者・共同発表者 | Eckhard Hitzer | |
12. |
2022/07/01 |
Relating Clifford Algebras and Octonions(International Conference Day to pay Tribute to Outstanding Professor Ahmed ABOUELAZ) |
発表年月日 | 2022/07/01 | 発表テーマ | Relating Clifford Algebras and Octonions | 会議名 | International Conference Day to pay Tribute to Outstanding Professor Ahmed ABOUELAZ | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 国名 | モロッコ | 開催地名 | Casablanca, Km 8 Route d’El Jadida, BP 5366 Maarif, Casablanca, Morocco | 開催期間 | 2022/07/01~2022/07/01 | 発表者・共同発表者 | Eckhard Hitzer | |
13. |
2022/03/23 |
Clifford algebra and octonions(Mathematical Colloquium) |
発表年月日 | 2022/03/23 | 発表テーマ | Clifford algebra and octonions | 会議名 | Mathematical Colloquium | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 国名 | イスラエル | 開催地名 | Tel Aviv, Israel | 開催期間 | 2022/03/23~2022/03/23 | 発表者・共同発表者 | Eckhard Hitzer | |
14. |
2021/09/21 |
Special affine quaternion domain Fourier transform(DMV-OeMG Annual Conference 2021, Session M7 Clifford Analysis and Phase Retrieval for Image Processing) |
発表年月日 | 2021/09/21 | 発表テーマ | Special affine quaternion domain Fourier transform | 会議名 | DMV-OeMG Annual Conference 2021, Session M7 Clifford Analysis and Phase Retrieval for Image Processing | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 開催地名 | University of Passau, Germany | 発表者・共同発表者 | Eckhard Hitzer | 概要 | E. Hitzer, Special affine quaternion domain Fourier transform, DMV-OeMG Annual Conference 2021, Session M7 Clifford Analysis and Phase Retrieval for Image Processing, 11:30-12:00, 28 Sep. 2021, University of Passau, Germany | researchmap用URL | https://www.uni-passau.de/en/dmv-oemg-jahrestagung-2021/home/ | |
15. |
2021/09/06 |
Special affine Fourier transform for space-time algebra signals(Computer Graphics International 2021 (CGI2021), Workshop Geometric Algebra for Computing, Graphics and Engineering 2021 (ENGAGE2021)) |
発表年月日 | 2021/09/06 | 発表テーマ | Special affine Fourier transform for space-time algebra signals | 会議名 | Computer Graphics International 2021 (CGI2021), Workshop Geometric Algebra for Computing, Graphics and Engineering 2021 (ENGAGE2021) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 開催地名 | Geneva, Switzerland | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Eckhard Hitzer, Special affine Fourier transform for space-time algebra signals, Computer Graphics International 2021 (CGI2021), Workshop Geometric Algebra for Computing, Graphics and Engineering 2021 (ENGAGE2021), 06 Sep. 2021, Geneva, Switzerland. | researchmap用URL | https://www.youtube.com/watch?v=f_dLM0yVHjQ | |
16. |
2021/08/26 |
Special affine quaternion domain Fourier transform(GOL 2021: International Conference “Applied Category Theory Graph-Operad-Logic”, Professor Zbigniew Oziewicz in memoriam) |
発表年月日 | 2021/08/26 | 発表テーマ | Special affine quaternion domain Fourier transform | 会議名 | GOL 2021: International Conference “Applied Category Theory Graph-Operad-Logic”, Professor Zbigniew Oziewicz in memoriam | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | Cuautitlan Izcalli, Mexico | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Invited Lecture: Special affine quaternion domain Fourier transform, "GOL 2021: International Conference “Applied Category Theory Graph-Operad-Logic”, Professor Zbigniew Oziewicz in memoriam", Cuautitlan Izcalli, Mexico, 26 Aug. 2021. | researchmap用URL | https://gaupdate.wordpress.com/2021/09/10/video-lecture-by-e-hitzer-at-gol-2021-special-affine-quaternion-domain-fourier-transform/ | |
17. |
2021/08/06 |
Generalization of special affine Fourier transform to spacetime algebra Cl(3,1)(ISAAC2021, Session on Quaternionic and Clifford Analysis) |
発表年月日 | 2021/08/06 | 発表テーマ | Generalization of special affine Fourier transform to spacetime algebra Cl(3,1) | 会議名 | ISAAC2021, Session on Quaternionic and Clifford Analysis | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 開催地名 | Ghent, Belgium | 発表者・共同発表者 | Eckhard Hitzer | 概要 | E. Hitzer, Generalization of special affine Fourier transform to spacetime algebra Cl(3,1), ISAAC2021, Session on Quaternionic and Clifford Analysis, Ghent, Belgium, 06 Aug. 2021. | researchmap用URL | https://cage.ugent.be/isaac2021/ | |
18. |
2021/03/21 |
Airborne laserscanning data adjustment with conformal geometric algebra(Workshop on “High-dimensional neuro-dynamics and neuro hardware structure development”) |
発表年月日 | 2021/03/21 | 発表テーマ | Airborne laserscanning data adjustment with conformal geometric algebra | 会議名 | Workshop on “High-dimensional neuro-dynamics and neuro hardware structure development” | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 招待講演 | 招待講演 | 開催地名 | RIEC, Tohoku University, Sendai, Japan | 発表者・共同発表者 | Presenter: E. Hitzer,
Copresenters: W. Benger, M. Niederwieser, R. Baran, F. Steinbacher | 概要 | Invited Lecture: E.H., W. Benger, M. Niederwieser, R. Baran, F. Steinbacher, Airborne laserscanning data adjustment with conformal geometric algebra, Tohoku, Workshop on “High-dimensional neuro-dynamics and neuro hardware structure development”, RIEC, Tohoku University, Sendai, Japan, 02 Mar. 2021. | |
19. |
2020/12/07 |
Strip Adjustment of Airborne Laserscanning Data with Conformal Geometric Algebra(Joint 11th International Conference on Soft Computing and Intelligent Systems and 21st International Symposium on Advanced Intelligent Systems (SCIS&ISIS2020), OS-14: Modern Applications of Clifford Algebra (online)) |
発表年月日 | 2020/12/07 | 発表テーマ | Strip Adjustment of Airborne Laserscanning Data with Conformal Geometric Algebra | 会議名 | Joint 11th International Conference on Soft Computing and Intelligent Systems and 21st International Symposium on Advanced Intelligent Systems (SCIS&ISIS2020), OS-14: Modern Applications of Clifford Algebra (online) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | Hachijo Island, Tokyo, Japan | 発表者・共同発表者 | Presenter: E. Hitzer,
Copresenters: W. Benger, M. Niederwieser, R. Baran, F. Steinbacher | 概要 | E.H., W. Benger, M. Niederwieser, R. Baran, F. Steinbacher, Strip Adjustment of Airborne Laserscanning Data with Conformal Geometric Algebra, Joint 11th International Conference on Soft Computing and Intelligent Systems and 21st International Symposium on Advanced Intelligent Systems (SCIS&ISIS2020), OS-14: Modern Applications of Clifford Algebra (online), Hachijo Island, Tokyo, Japan, Mo. 07 Dec. 2020. | |
20. |
2020/08/07 |
Exponential Factorization of Multivectors in Cl(p,q), n = p + q <= 3(Mini-Symposium Fourier and other Integral Transformations with Clifford Algebras, Quaternions and Octonions IV (FITCAQO 4) of The 12th International Conference on Clifford Algebras and Their Applications in Mathematical Physics (ICCA12)) |
発表年月日 | 2020/08/07 | 発表テーマ | Exponential Factorization of Multivectors in Cl(p,q), n = p + q <= 3 | 会議名 | Mini-Symposium Fourier and other Integral Transformations with Clifford Algebras, Quaternions and Octonions IV (FITCAQO 4) of The 12th International Conference on Clifford Algebras and Their Applications in Mathematical Physics (ICCA12) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 開催地名 | Heifei, Anhui, China | 発表者・共同発表者 | Eckhard Hitzer | 概要 | In this talk we consider general multivector elements of
Cliord algebras Cl(p; q), n = p + q = 3, and look for
possibilities to factorize multivectors into products of
blades, idempotents and exponentials, where the expo-
nents are frequently blades of grades zero (scalar) to n
(pseudoscalar). | researchmap用URL | http://www.smartchair.org/hp/ICCA2020/ | |
21. |
2020/08/04 |
Airborne Laser Scanning Registration and Conformal Geometric Algebra(Mini-Symposium Geometric Calculi and Deep Learning: a long-term relationship of The 12th International Conference on Clifford Algebras and Their Applications in Mathematical Physics (ICCA12)) |
発表年月日 | 2020/08/04 | 発表テーマ | Airborne Laser Scanning Registration and Conformal Geometric Algebra | 会議名 | Mini-Symposium Geometric Calculi and Deep Learning: a long-term relationship of The 12th International Conference on Clifford Algebras and Their Applications in Mathematical Physics (ICCA12) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | Heifei, Anhui, China | 発表者・共同発表者 | Presenter: E. H.itzer
Copresenters: W. Benger, M. Niederwieser, R. Baran, F. Steinbacher | 概要 | In this contribution we outlikne how to use the iterative
closest point method for the adjustment of airborne
laserscanning data strips in the framework of conformal
geometric algebra and calculus. | researchmap用URL | http://www.smartchair.org/hp/ICCA2020/ | |
22. |
2020/08/03 |
Opening Speech(The 12th International Conference on Clifford Algebras and Their Applications in Mathematical Physics (ICCA12)) |
発表年月日 | 2020/08/03 | 発表テーマ | Opening Speech | 会議名 | The 12th International Conference on Clifford Algebras and Their Applications in Mathematical Physics (ICCA12) | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | Heifei, Anhui, China | 発表者・共同発表者 | Eckhard Hitzer | 概要 | Opening Speech as President of International Advisory Board | researchmap用URL | http://www.smartchair.org/hp/ICCA2020/ | |
23. |
2019/02/01 |
Energy saving wooden buildings(2019東京耐震博覧会) |
発表年月日 | 2019/02/01 | 発表テーマ | Energy saving wooden buildings | 会議名 | 2019東京耐震博覧会 | 主催者 | Prof. em. Tatsuaki Tanaka, President of Japanese Association for Housing Thermal Insulation Technology Corp. | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | Tokyo Big Sight, Tokyo | 発表者・共同発表者 | Eckhard Hitzer | |
24. |
2018/11/10 |
Geometric Transformations of Conics in Geometric Algebra(Workshop on Information Processing Capacity of High-dimensional Neural Networks, RIEC, Tohoku University, Sendai, Japan) |
発表年月日 | 2018/11/10 | 発表テーマ | Geometric Transformations of Conics in Geometric Algebra | 会議名 | Workshop on Information Processing Capacity of High-dimensional Neural Networks, RIEC, Tohoku University, Sendai, Japan | 主催者 | Prof. Akira Hirose (Univrsity of Tokyo), Prof. Shigeo Sato (RIEC, Tohoku University) | 学会区分 | 全国学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 招待講演 | 招待講演 | 開催地名 | RIEC, Tohoku University, Sendai, Japan | 発表者・共同発表者 | Eckhard Hitzer, Stephen J. Sangwine | |
25. |
2018/10/18 |
Renewable Energy and Energy Efficiency for Japanese RE100 Universities(3rd Japanese-German Workshop on Renewable Energies, Tokyo, Japan) |
発表年月日 | 2018/10/18 | 発表テーマ | Renewable Energy and Energy Efficiency for Japanese RE100 Universities | 会議名 | 3rd Japanese-German Workshop on Renewable Energies, Tokyo, Japan | 主催者 | Dr. Toru Okazaki (The Institute of Applied Energy) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | TEPIA Hall, Tokyo, Japan | 発表者・共同発表者 | Eckhard Hitzer | |
26. |
2018/08/24 |
Conic Conformal Geometric Algebra(Conference Function Theories in Higher Dimensions 2018 (FTHD2018), University of Tampere, Tampere, Finland) |
発表年月日 | 2018/08/24 | 発表テーマ | Conic Conformal Geometric Algebra | 会議名 | Conference Function Theories in Higher Dimensions 2018 (FTHD2018), University of Tampere, Tampere, Finland | 主催者 | Prof. Heikki Orelma, Tampere University of Technology, Finnland. | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | University of Tampere, Tampere, Finland | 発表者・共同発表者 | Eckhard Hitzer, Stephen J. Sangwine | |
27. |
2018/07/25 |
Application of Conformal Geometric Algebra to in-plane rotated face detection by AdaBoost-based algorithm(The 7th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE2018), IMECC–UNICAMP, Las Campinas, Brazil) |
発表年月日 | 2018/07/25 | 発表テーマ | Application of Conformal Geometric Algebra to in-plane rotated face detection by AdaBoost-based algorithm | 会議名 | The 7th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE2018), IMECC–UNICAMP, Las Campinas, Brazil | 主催者 | Prof. Carlile Lavor, President of Association of Applied Mathematics in Brazil, Prof. Sebastia Xambo (University of Barcelona, Spain) | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | MECC–UNICAMP, Las Campinas, Brazil | 発表者・共同発表者 | T. M. Pham, D. C. Doan, E. Hitzer | |
28. |
2018/07/24 |
3D Quadrics in Hybrid CGA of Higher Dimensions(The 7th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE2018), IMECC–UNICAMP, Las Campinas, Brazil) |
発表年月日 | 2018/07/24 | 発表テーマ | 3D Quadrics in Hybrid CGA of Higher Dimensions | 会議名 | The 7th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE2018), IMECC–UNICAMP, Las Campinas, Brazil | 主催者 | Prof. Carlile Lavor, President of Association of Applied Mathematics in Brazil, Prof. Sebastia Xambo (University of Barcelona, Spain) | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | IMECC–UNICAMP, Las Campinas, Brazil | 発表者・共同発表者 | Eckhard Hitzer | |
29. |
2017/12/11 |
Developing Conformal Geometric Algebra for the Representation of Algebraic Curves and Surfaces(Workshop on Information Processing Capacity of High-dimensional Neural Networks, RIEC, Tohoku University, Sendai, Japan) |
発表年月日 | 2017/12/11 | 発表テーマ | Developing Conformal Geometric Algebra for the Representation of Algebraic Curves and Surfaces | 会議名 | Workshop on Information Processing Capacity of High-dimensional Neural Networks, RIEC, Tohoku University, Sendai, Japan | 主催者 | Prof. Akira Hirose (University of Tokyo), Prof. Shigeo Sato (RIEC, Tohoku University) | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | RIEC, Tohoku University, Sendai, Japan | 発表者・共同発表者 | Eckhard Hitzer | |
30. |
2017/09/27 |
Aspirations of Japanese Universities to Become Sustainable by Means of Energy Efficiency and Renewable Energy(Academic seminar of JSPS Club, Tsukuba, Japan) |
発表年月日 | 2017/09/27 | 発表テーマ | Aspirations of Japanese Universities to Become Sustainable by Means of Energy Efficiency and Renewable Energy | 会議名 | Academic seminar of JSPS Club, Tsukuba, Japan | 主催者 | Prof. Heinrich Menkhaus, President of JSPS Club. | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | University of Tsukuba, Japan. | 発表者・共同発表者 | Eckhard Hitzer | |
31. |
2017/08/08 |
Convolutions for Quaternionic and Clifford Fourier Transforms in spatial and spectral domains(ICCA11) |
発表年月日 | 2017/08/08 | 発表テーマ | Convolutions for Quaternionic and Clifford Fourier Transforms in spatial and spectral domains | 会議名 | ICCA11 | 主催者 | Prof. Fred Brackx, Prof. Hennie De Schepper | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 開催地名 | University of Gent, Gent, Belgium | 発表者・共同発表者 | Eckhard Hitzer | |
32. |
2017/08/08 |
Extending MATLAB to handle hypercomplex algebras(ICCA11) |
発表年月日 | 2017/08/08 | 発表テーマ | Extending MATLAB to handle hypercomplex algebras | 会議名 | ICCA11 | 主催者 | Prof. Fred Brackx, Prof. Hennie De Schepper | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | University of Gent, Gent, Belgium | 発表者・共同発表者 | Stephen J. Sangwine, Eckhard Hitzer | |
33. |
2017/08/07 |
Extended Conformal Geometric Algebra for the Representation of Algebraic Curves and Surfaces(ICCA11) |
発表年月日 | 2017/08/07 | 発表テーマ | Extended Conformal Geometric Algebra for the Representation of Algebraic Curves and Surfaces | 会議名 | ICCA11 | 主催者 | Prof. Fred Brackx, Prof. Hennie De Schepper | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | University of Gent, Gent, Belgium | 発表者・共同発表者 | Eckhard Hitzer, Robert B. Easter | |
34. |
2017/07/05 |
General one-sided Clifford Fourier transform, convolution products in the spatial and frequency domains, and auto-correlation theorems(CMMSE 2017, Session on Hypercomplex Methods in Applied Science, Costa Ballena, Cadiz, Spain) |
発表年月日 | 2017/07/05 | 発表テーマ | General one-sided Clifford Fourier transform, convolution products in the spatial and frequency domains, and auto-correlation theorems | 会議名 | CMMSE 2017, Session on Hypercomplex Methods in Applied Science, Costa Ballena, Cadiz, Spain | 主催者 | Prof. Wolfgang Sproessig. | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | Costa Ballena, Cadiz, Spain | 発表者・共同発表者 | Eckhard Hitzer | |
35. |
2017/06/27 |
Triple Conformal Geometric Algebra for Cubic Plane Curves(Workshop Empowering Novel Geometric Algebra for Graphics & Engineering Workshop (ENGAGE 2017) at Computer Graphics International (CGI 2017), Keio University, Yokohama, Japan) |
発表年月日 | 2017/06/27 | 発表テーマ | Triple Conformal Geometric Algebra for Cubic Plane Curves | 会議名 | Workshop Empowering Novel Geometric Algebra for Graphics & Engineering Workshop (ENGAGE 2017) at Computer Graphics International (CGI 2017), Keio University, Yokohama, Japan | 主催者 | International organizing committee of ENGAGE 2017 workshop. | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | Keio University, Yokohama, Japan | 発表者・共同発表者 | Eckhard Hitzer, Robert B. Easter | |
36. |
2016/12/07 |
Conic and Cyclidic Sections in Double Conformal Geometric Algebra G8,2(SSI 2016, Session SS11, Otsu, Shiga, Japan, 7 Dec. 2016.) |
発表年月日 | 2016/12/07 | 発表テーマ | Conic and Cyclidic Sections in Double Conformal Geometric Algebra G8,2 | 会議名 | SSI 2016, Session SS11, Otsu, Shiga, Japan, 7 Dec. 2016. | 学会区分 | 全国学会 | 発表形式 | ポスター | 単独共同区分 | 共同 | 開催地名 | Otsu, Shiga, Japan | 発表者・共同発表者 | Robert B. Easter, Eckhard Hitzer | |
37. |
2016/09/12 |
Double Conformal Geometric Algebra Surface Representation(Workshop on Information Processing Capacity of High-dimensional Neural Networks) |
発表年月日 | 2016/09/12 | 発表テーマ | Double Conformal Geometric Algebra Surface Representation | 会議名 | Workshop on Information Processing Capacity of High-dimensional Neural Networks | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | RIEC, Tohoku University, Sendai, Japan | 発表者・共同発表者 | Robert Benjamin Easter | |
38. |
2016/08/25 |
Modern Applications of Clifford Geometric Algebra(GAGIS Section at 33rd International Geographic Congress) |
発表年月日 | 2016/08/25 | 発表テーマ | Modern Applications of Clifford Geometric Algebra | 会議名 | GAGIS Section at 33rd International Geographic Congress | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | Nanjing Normal University, Nanjing, PR China | |
39. |
2016/07/08 |
Double Conformal Space Time Algebra(ICNPAA 2016) |
発表年月日 | 2016/07/08 | 発表テーマ | Double Conformal Space Time Algebra | 会議名 | ICNPAA 2016 | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | La Rochelle, France | 発表者・共同発表者 | Robert Benjamin Easter | |
40. |
2016/06/28 |
Double Conformal Geometric Algebra for Quadrics and Darboux Cyclides(GACSE Workshop at CGI 2016) |
発表年月日 | 2016/06/28 | 発表テーマ | Double Conformal Geometric Algebra for Quadrics and Darboux Cyclides | 会議名 | GACSE Workshop at CGI 2016 | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 開催地名 | Heraklion, Crete, Greece | 発表者・共同発表者 | Robert Benjamin Easter | |
41. |
2016/06/28 |
General steerable two-sided Clifford Fourier transform, convolution and Mustard convolution(GACSE Workshop at CGI 2016) |
発表年月日 | 2016/06/28 | 発表テーマ | General steerable two-sided Clifford Fourier transform, convolution and Mustard convolution | 会議名 | GACSE Workshop at CGI 2016 | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 開催地名 | Heraklion, Crete, Greece | |
42. |
2016/06/27 |
Conformal geometric algebra(Computer Graphics International 2016) |
発表年月日 | 2016/06/27 | 発表テーマ | Conformal geometric algebra | 会議名 | Computer Graphics International 2016 | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | Heraklion, Crete, Greece | 概要 | Tutorial | |
43. |
2016/05/29 |
Christ centered environmental stewardship(Sustainable Management Forum Japan National Conference) |
発表年月日 | 2016/05/29 | 発表テーマ | Christ centered environmental stewardship | 会議名 | Sustainable Management Forum Japan National Conference | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 開催地名 | Nihon University, Tokyo | |
44. |
2015/10/24 |
Prospects of Modern Wood Gas Cogeneration Renewable Energy Supply in Japan – Case Study of ICU(Japanese Association of Social Accounting National Conference) |
発表年月日 | 2015/10/24 | 発表テーマ | Prospects of Modern Wood Gas Cogeneration Renewable Energy Supply in Japan – Case Study of ICU | 会議名 | Japanese Association of Social Accounting National Conference | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 招待講演 | 招待講演 | 開催地名 | Asia University Tokyo, Japan | 発表者・共同発表者 | Nobuyuki Miyazaki | |
45. |
2015/07/31 |
Fourier Transformations in Conformal Geometric Algebra(6th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE 2015), Universitat Politècnica de Catalunya, Barcelona, Spain.) |
発表年月日 | 2015/07/31 | 発表テーマ | Fourier Transformations in Conformal Geometric Algebra | 会議名 | 6th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE 2015), Universitat Politècnica de Catalunya, Barcelona, Spain. | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer, D. Eelbode | |
46. |
2015/07/28 |
Overview of the development of quaternionic Fourier transforms over three decades, from 1987 to 2015: Theory and application(Summer School of 6th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE 2015), Universitat Politècnica de Catalunya, Barcelona, Spain.) |
発表年月日 | 2015/07/28 | 発表テーマ | Overview of the development of quaternionic Fourier transforms over three decades, from 1987 to 2015: Theory and application | 会議名 | Summer School of 6th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE 2015), Universitat Politècnica de Catalunya, Barcelona, Spain. | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
47. |
2015/07/27 |
Basic Notions of Geometric Algebra(Summer School of 6th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE 2015)) |
発表年月日 | 2015/07/27 | 発表テーマ | Basic Notions of Geometric Algebra | 会議名 | Summer School of 6th Conference on Applied Geometric Algebras in Computer Science and Engineering (AGACSE 2015) | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
48. |
2015/07/20 |
Modern Applications of Clifford Geometric Algebra(The 20th International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering (IKM 2015), Bauhaus University Weimar, Germany) |
発表年月日 | 2015/07/20 | 発表テーマ | Modern Applications of Clifford Geometric Algebra | 会議名 | The 20th International Conference on the Applications of Computer Science and Mathematics in Architecture and Civil Engineering (IKM 2015), Bauhaus University Weimar, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
49. |
2015/03/27 |
Introduction to quaternion and Clifford Fourier transforms(Asian Workshop on Clifford's Geometric Algebra and Information Technology – AWCGAIT2015, University of Science and Technology – The University of Danang, Danang, Vietnam, 26-28 March 2015) |
発表年月日 | 2015/03/27 | 発表テーマ | Introduction to quaternion and Clifford Fourier transforms | 会議名 | Asian Workshop on Clifford's Geometric Algebra and Information Technology – AWCGAIT2015, University of Science and Technology – The University of Danang, Danang, Vietnam, 26-28 March 2015 | 学会区分 | 国際学会 | 発表形式 | 口頭(基調) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
50. |
2014/11 |
Preprocessing quaternion data in quaternion spaces using the quaternion domain Fourier transform(SICE SSI 2014, Session SS13, Okayama, Japan, 21-23 Nov. 2014) |
発表年月日 | 2014/11 | 発表テーマ | Preprocessing quaternion data in quaternion spaces using the quaternion domain Fourier transform | 会議名 | SICE SSI 2014, Session SS13, Okayama, Japan, 21-23 Nov. 2014 | 学会区分 | 全国学会 | 発表形式 | ポスター | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
51. |
2014/07/19 |
New Developments in Clifford Fourier Transforms(International Conference on Pure Mathematics, Applied Mathematics, Computational Methods (PMAMCM 2014), Santorini Island, Greece) |
発表年月日 | 2014/07/19 | 発表テーマ | New Developments in Clifford Fourier Transforms | 会議名 | International Conference on Pure Mathematics, Applied Mathematics, Computational Methods (PMAMCM 2014), Santorini Island, Greece | 学会区分 | 国際学会 | 発表形式 | 口頭(基調) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
52. |
2014/07/17 |
The orthogonal planes split of quaternions and its relation to quaternion geometry of rotations(The 30th International Colloquium on Group Theoretical Methods in Physics (Group30), Ghent University, Belgium) |
発表年月日 | 2014/07/17 | 発表テーマ | The orthogonal planes split of quaternions and its relation to quaternion geometry of rotations | 会議名 | The 30th International Colloquium on Group Theoretical Methods in Physics (Group30), Ghent University, Belgium | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
53. |
2014/07/04 |
Quaternion Domain Fourier Transform(Int. Conf. on Clifford Algs. and their Appls. in Math. Phys., Tartu, Estonia) |
発表年月日 | 2014/07/04 | 発表テーマ | Quaternion Domain Fourier Transform | 会議名 | Int. Conf. on Clifford Algs. and their Appls. in Math. Phys., Tartu, Estonia | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
54. |
2014/01/21 |
IYCR 2014 - Virtual reality, space groups and Clifford's geometric algebra(Int. Conference on Recent Advances in Mathematics, ICRAM 2014, Nagpur, India) |
発表年月日 | 2014/01/21 | 発表テーマ | IYCR 2014 - Virtual reality, space groups and Clifford's geometric algebra | 会議名 | Int. Conference on Recent Advances in Mathematics, ICRAM 2014, Nagpur, India | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
55. |
2013/09/22 |
The quest for conformal geometric algebra Fourier transformations(10th Symp. on Clifford Analysis and Appl. at the 11th Int. Conf. of Num. Anal. and Appl. Math. 2013, ICNAAM 2013, Rhodes, Greece) |
発表年月日 | 2013/09/22 | 発表テーマ | The quest for conformal geometric algebra Fourier transformations | 会議名 | 10th Symp. on Clifford Analysis and Appl. at the 11th Int. Conf. of Num. Anal. and Appl. Math. 2013, ICNAAM 2013, Rhodes, Greece | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
56. |
2013/09/21 |
Extending Fourier transformations to Hamilton’s quaternions and Clifford’s geometric algebras(11th Int. Conf. of Num. Anal. and Appl. Math. 2013, ICNAAM 2013, Rhodes, Greece) |
発表年月日 | 2013/09/21 | 発表テーマ | Extending Fourier transformations to Hamilton’s quaternions and Clifford’s geometric algebras | 会議名 | 11th Int. Conf. of Num. Anal. and Appl. Math. 2013, ICNAAM 2013, Rhodes, Greece | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
57. |
2013/08/13 |
Vector field computations in Clifford's geometric algebra(Third SICE Symposium on Computational Intelligence, Osaka University, Osaka) |
発表年月日 | 2013/08/13 | 発表テーマ | Vector field computations in Clifford's geometric algebra | 会議名 | Third SICE Symposium on Computational Intelligence, Osaka University, Osaka | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, R. Bujack, G. Scheuerma | |
58. |
2013/03/09 |
New way of teaching geometry with physical point of view in mind(Meiji University Symposium on Mathematics Education, Meiji University, Tokyo, Japan) |
発表年月日 | 2013/03/09 | 発表テーマ | New way of teaching geometry with physical point of view in mind | 会議名 | Meiji University Symposium on Mathematics Education, Meiji University, Tokyo, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
59. |
2012/12/10 |
The Clifford Fourier Transform in Conformal Geometric Algebra(Workshop on Information Processing Capacity of High-dimensional Neural Networks, Tohoku University, Sendai, Japan) |
発表年月日 | 2012/12/10 | 発表テーマ | The Clifford Fourier Transform in Conformal Geometric Algebra | 会議名 | Workshop on Information Processing Capacity of High-dimensional Neural Networks, Tohoku University, Sendai, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
60. |
2012/11/07 |
Moderne geothermische Energienutzung am Beispiel Islands - Eine aktuelle Erkundungsreise(2. Treffen der in Japan tätigen Mitglieder des JSPS- Clubs Tokyo, Japan) |
発表年月日 | 2012/11/07 | 発表テーマ | Moderne geothermische Energienutzung am Beispiel Islands - Eine aktuelle Erkundungsreise | 会議名 | 2. Treffen der in Japan tätigen Mitglieder des JSPS- Clubs Tokyo, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
61. |
2012/09/30 |
Non-constant bounded holomorphic functions of hyperbolic numbers - Candidates for hyperbolic activation functions(First SICE Symposium on Computational Intelligence [Concentrating on Clifford Neural Computing], KIT, Kyoto, Japan) |
発表年月日 | 2012/09/30 | 発表テーマ | Non-constant bounded holomorphic functions of hyperbolic numbers - Candidates for hyperbolic activation functions | 会議名 | First SICE Symposium on Computational Intelligence [Concentrating on Clifford Neural Computing], KIT, Kyoto, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
62. |
2012/09/28 |
Quaternionic generalization of Fourier-Mellin Transform(2nd SICE Symposium on Computational Intelligence “High-Dimensional Approaches and Representations in the Computational Intelligence”, Okayama University, Okayama, Japan) |
発表年月日 | 2012/09/28 | 発表テーマ | Quaternionic generalization of Fourier-Mellin Transform | 会議名 | 2nd SICE Symposium on Computational Intelligence “High-Dimensional Approaches and Representations in the Computational Intelligence”, Okayama University, Okayama, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
63. |
2012/07/06 |
The Clifford Fourier transform in real Clifford algebras(IKM 2012, Session Geometric Algebra and Applications, Bauhaus University, Weimar, Germany) |
発表年月日 | 2012/07/06 | 発表テーマ | The Clifford Fourier transform in real Clifford algebras | 会議名 | IKM 2012, Session Geometric Algebra and Applications, Bauhaus University, Weimar, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
64. |
2012/07/03 |
Two-sided Clifford Fourier Transform with Square Roots of -1 in Cl(p,q)(AGACSE 2012, La Rochelle, France) |
発表年月日 | 2012/07/03 | 発表テーマ | Two-sided Clifford Fourier Transform with Square Roots of -1 in Cl(p,q) | 会議名 | AGACSE 2012, La Rochelle, France | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
65. |
2012/03/18 |
Discussion on Mathematical Experiences(Mathematics Education Symposium 2012, Meiji University, Tokyo, Japan) |
発表年月日 | 2012/03/18 | 発表テーマ | Discussion on Mathematical Experiences | 会議名 | Mathematics Education Symposium 2012, Meiji University, Tokyo, Japan | 学会区分 | 全国学会 | 発表形式 | シンポジウム・ワークショップ パネル(公募) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
66. |
2012/03/18 |
Natural Science Education in Germany in 2012 after the 1999 European Bologna Reforms(Mathematics Education Symposium 2012, Meiji University, Tokyo, Japan) |
発表年月日 | 2012/03/18 | 発表テーマ | Natural Science Education in Germany in 2012 after the 1999 European Bologna Reforms | 会議名 | Mathematics Education Symposium 2012, Meiji University, Tokyo, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
67. |
2012/03/17 |
English Presentation for Mathematics Students(Mathematics Education Symposium 2012, Meiji University, Tokyo, Japan) |
発表年月日 | 2012/03/17 | 発表テーマ | English Presentation for Mathematics Students | 会議名 | Mathematics Education Symposium 2012, Meiji University, Tokyo, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
68. |
2012/01/20 |
Introduction to William Kingdon Clifford’s geometric algebras(Research Meeting on Particle Filters, Nagoya University, Japan) |
発表年月日 | 2012/01/20 | 発表テーマ | Introduction to William Kingdon Clifford’s geometric algebras | 会議名 | Research Meeting on Particle Filters, Nagoya University, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
69. |
2012 |
Quaternionic generalization of Fourier Mellin Transform(ICNPAA 2012 Congress: Mathematical Problems in Engineering, Aerospace and Sciences, Vienna, Austria, 11-14 July 2012) |
発表年月日 | 2012 | 発表テーマ | Quaternionic generalization of Fourier Mellin Transform | 会議名 | ICNPAA 2012 Congress: Mathematical Problems in Engineering, Aerospace and Sciences, Vienna, Austria, 11-14 July 2012 | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
70. |
2011/12/14 |
Quaternionic Fourier Mellin transform(19th ICFIDCAA, Hiroshima, Japan) |
発表年月日 | 2011/12/14 | 発表テーマ | Quaternionic Fourier Mellin transform | 会議名 | 19th ICFIDCAA, Hiroshima, Japan | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
71. |
2011/09 |
The OPS-QFT: A new type of quaternion Fourier transform based on the orthogonal planes split with two general pure quaternions(8th Symp. on Clifford Analysis and Appl. at the 9th Int. Conf. of Num. Anal. and Appl. Math. 2011 (ICNAAM 2011), Halkidiki, Greece, 19-25 Sep. 2011.) |
発表年月日 | 2011/09 | 発表テーマ | The OPS-QFT: A new type of quaternion Fourier transform based on the orthogonal planes split with two general pure quaternions | 会議名 | 8th Symp. on Clifford Analysis and Appl. at the 9th Int. Conf. of Num. Anal. and Appl. Math. 2011 (ICNAAM 2011), Halkidiki, Greece, 19-25 Sep. 2011. | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
72. |
2011/08 |
Crystal planes in Clifford geometric algebra(IUCr Madrid, Spain, 22-29 Aug. 2011.) |
発表年月日 | 2011/08 | 発表テーマ | Crystal planes in Clifford geometric algebra | 会議名 | IUCr Madrid, Spain, 22-29 Aug. 2011. | 学会区分 | 国際学会 | 発表形式 | ポスター | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
73. |
2011/07 |
Square roots of -1 in real Clifford algebras(The 9th Int. Conf. on Clifford Algebras and their Applications (ICCA 2011), Weimar, Germany) |
発表年月日 | 2011/07 | 発表テーマ | Square roots of -1 in real Clifford algebras | 会議名 | The 9th Int. Conf. on Clifford Algebras and their Applications (ICCA 2011), Weimar, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, J. Helmstetter, R. Ablamowicz | |
74. |
2011/02/18 |
Mathematics education in the UK(Mathematics Education Symposium, Meiji University, Tokyo, Japan) |
発表年月日 | 2011/02/18 | 発表テーマ | Mathematics education in the UK | 会議名 | Mathematics Education Symposium, Meiji University, Tokyo, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
75. |
2010/12/22 |
Algebraic foundations of split hypercomplex nonlinear adaptive filtering(2nd Research Meeting of Cooperative Research Program at RIEC, Tohoku University, Sendai, Japan) |
発表年月日 | 2010/12/22 | 発表テーマ | Algebraic foundations of split hypercomplex nonlinear adaptive filtering | 会議名 | 2nd Research Meeting of Cooperative Research Program at RIEC, Tohoku University, Sendai, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
76. |
2010/09 |
Angles between subspaces computed in Clifford algebra(7th Symp. on Clifford Analysis and Appl. at the 8th Int. Conf. of Num. Anal. and Appl. Math. 2010 (ICNAAM 2010), Rhodes, Greece, 19-25 Sep. 2010) |
発表年月日 | 2010/09 | 発表テーマ | Angles between subspaces computed in Clifford algebra | 会議名 | 7th Symp. on Clifford Analysis and Appl. at the 8th Int. Conf. of Num. Anal. and Appl. Math. 2010 (ICNAAM 2010), Rhodes, Greece, 19-25 Sep. 2010 | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
77. |
2010/08/26 |
Interactive visualization of plane groups(Symmetry: Art and Science, 8th Congress of Int. Soc. For the Interdisc. Study of Symmetry (ISIS), Days of Harmonics, Gmünd, Austria) |
発表年月日 | 2010/08/26 | 発表テーマ | Interactive visualization of plane groups | 会議名 | Symmetry: Art and Science, 8th Congress of Int. Soc. For the Interdisc. Study of Symmetry (ISIS), Days of Harmonics, Gmünd, Austria | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, C. Perwass | |
78. |
2010/08 |
Interactive 3D Visualization of Plane Groups and Layer Groups Using the SGV(MS46-T06, 26th European Crystallographic Meeting (ECM26), 29 Aug. – 2 Sep. 2010, Darmstadt, Germany) |
発表年月日 | 2010/08 | 発表テーマ | Interactive 3D Visualization of Plane Groups and Layer Groups Using the SGV | 会議名 | MS46-T06, 26th European Crystallographic Meeting (ECM26), 29 Aug. – 2 Sep. 2010, Darmstadt, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, C. Perwass | |
79. |
2010/08 |
Introduction to Quaternions and Geometric Algebra and their applications in crystallography,(MaThCryst Satellite Conference at ECM 26 on Minimal Surfaces, Aperiodic Structures, Geometric Algebra, Darmstadt, Germany, 27 – 29 Aug. 2010) |
発表年月日 | 2010/08 | 発表テーマ | Introduction to Quaternions and Geometric Algebra and their applications in crystallography, | 会議名 | MaThCryst Satellite Conference at ECM 26 on Minimal Surfaces, Aperiodic Structures, Geometric Algebra, Darmstadt, Germany, 27 – 29 Aug. 2010 | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 発表者・共同発表者 | H. Grimmer, E. Hitzer | |
80. |
2010/06/15 |
Reciprocal space and crystal planes in geometric algebra(AGACSE 2010, Amsterdam, The Netherlands) |
発表年月日 | 2010/06/15 | 発表テーマ | Reciprocal space and crystal planes in geometric algebra | 会議名 | AGACSE 2010, Amsterdam, The Netherlands | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
81. |
2010/03/20 |
Interactive 3D graphics software as a new tool to teach space group symmetry(Meiji University, Tokyo, Japan) |
発表年月日 | 2010/03/20 | 発表テーマ | Interactive 3D graphics software as a new tool to teach space group symmetry | 会議名 | Meiji University, Tokyo, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
82. |
2010/03/19 |
Reflections on some aspects of mathematical education during the last two centuries and on how to bridge the gap between abstract mathematics and common experiential knowledge(Meiji University, Tokyo, Japan) |
発表年月日 | 2010/03/19 | 発表テーマ | Reflections on some aspects of mathematical education during the last two centuries and on how to bridge the gap between abstract mathematics and common experiential knowledge | 会議名 | Meiji University, Tokyo, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
83. |
2010/03 |
3D Space Group Visualization with Interactive Crystal Symmetry Software(Dipartimento di Chimica Strutturale e Stereochimica Inorganica, Seminari Chimici, University of Milan, Italy, 3+4 March 2010.) |
発表年月日 | 2010/03 | 発表テーマ | 3D Space Group Visualization with Interactive Crystal Symmetry Software | 会議名 | Dipartimento di Chimica Strutturale e Stereochimica Inorganica, Seminari Chimici, University of Milan, Italy, 3+4 March 2010. | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
84. |
2010/02/25 |
Clifford Fourier and Clifford Wavelet Transformations(Seminar on Functional Analysis, Ass. Prof. S. Siltanen, University of Helsinki, Finland) |
発表年月日 | 2010/02/25 | 発表テーマ | Clifford Fourier and Clifford Wavelet Transformations | 会議名 | Seminar on Functional Analysis, Ass. Prof. S. Siltanen, University of Helsinki, Finland | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
85. |
2010/02/24 |
Interactive 3D visualization of space group symmetry(Department of Chemistry, Prof. J. Pesonen, University of Helsinki, Finland) |
発表年月日 | 2010/02/24 | 発表テーマ | Interactive 3D visualization of space group symmetry | 会議名 | Department of Chemistry, Prof. J. Pesonen, University of Helsinki, Finland | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
86. |
2010/02/24 |
Introduction to Clifford Fourier and Clifford Wavelet Transformations(Department of Chemistry, Prof. J. Pesonen, University of Helsinki, Finland) |
発表年月日 | 2010/02/24 | 発表テーマ | Introduction to Clifford Fourier and Clifford Wavelet Transformations | 会議名 | Department of Chemistry, Prof. J. Pesonen, University of Helsinki, Finland | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
87. |
2010 |
Angles between subspaces(GraVisMa 2010, Brno, Czech Republic, 7-10 Sep. 2010) |
発表年月日 | 2010 | 発表テーマ | Angles between subspaces | 会議名 | GraVisMa 2010, Brno, Czech Republic, 7-10 Sep. 2010 | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
88. |
2009/12 |
Neural Computation with Clifford Algebra(Research Meeting of Cooperative Research Program at RIEC, Tohoku University, Sendai, Japan) |
発表年月日 | 2009/12 | 発表テーマ | Neural Computation with Clifford Algebra | 会議名 | Research Meeting of Cooperative Research Program at RIEC, Tohoku University, Sendai, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
89. |
2009/09/22 |
Real Clifford Algebra Cl(n,0), n=2,3(mod 4) Wavelet Transform(ICNAAM, Rethymno, Crete, Greece) |
発表年月日 | 2009/09/22 | 発表テーマ | Real Clifford Algebra Cl(n,0), n=2,3(mod 4) Wavelet Transform | 会議名 | ICNAAM, Rethymno, Crete, Greece | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
90. |
2009/09/07 |
Brief Introduction to Clifford Geometric Algebra(Faculty of Informatik and Mathematik, University of Leipzig, Germany) |
発表年月日 | 2009/09/07 | 発表テーマ | Brief Introduction to Clifford Geometric Algebra | 会議名 | Faculty of Informatik and Mathematik, University of Leipzig, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
91. |
2009/09/07 |
Clifford Wavelets(Faculty of Informatik and Mathematik, University of Leipzig, Germany) |
発表年月日 | 2009/09/07 | 発表テーマ | Clifford Wavelets | 会議名 | Faculty of Informatik and Mathematik, University of Leipzig, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
92. |
2009/09 |
Fourier and Wavelet Transformations in Geometric Algebra(Computer Graphics, Computer Vision and Mathematics, Plzeň, Czech Republic, 2-4 Sep. 2009) |
発表年月日 | 2009/09 | 発表テーマ | Fourier and Wavelet Transformations in Geometric Algebra | 会議名 | Computer Graphics, Computer Vision and Mathematics, Plzeň, Czech Republic, 2-4 Sep. 2009 | 学会区分 | 国際学会 | 発表形式 | 口頭(基調) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
93. |
2009/09 |
New views of crystal symmetry(Symmetries of Forms and Structures, Wroclaw and Cracow, Poland, 14-19 Sep. 2009) |
発表年月日 | 2009/09 | 発表テーマ | New views of crystal symmetry | 会議名 | Symmetries of Forms and Structures, Wroclaw and Cracow, Poland, 14-19 Sep. 2009 | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
94. |
2009/09 |
New views of crystal symmetry guided by profound admiration of the extraordinary works of Grassmann and Clifford(Grassmann Bicentennial Conf., Potsdam (DE), Szczecin (PL), 16-19. Sep. 2009) |
発表年月日 | 2009/09 | 発表テーマ | New views of crystal symmetry guided by profound admiration of the extraordinary works of Grassmann and Clifford | 会議名 | Grassmann Bicentennial Conf., Potsdam (DE), Szczecin (PL), 16-19. Sep. 2009 | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
95. |
2009/08/07 |
Clifford Fourier and Clifford Wavelet Transformations(Department of Mathematics, Tampere University of Technology, Tampere, Finland) |
発表年月日 | 2009/08/07 | 発表テーマ | Clifford Fourier and Clifford Wavelet Transformations | 会議名 | Department of Mathematics, Tampere University of Technology, Tampere, Finland | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
96. |
2009/07 |
Geometric Algebra Wavelet Transforms(Workshop Clifford algebras and Lie Groups for multi-dimensional image processing, La Rochelle, France, 2-3 Jul. 2009.) |
発表年月日 | 2009/07 | 発表テーマ | Geometric Algebra Wavelet Transforms | 会議名 | Workshop Clifford algebras and Lie Groups for multi-dimensional image processing, La Rochelle, France, 2-3 Jul. 2009. | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
97. |
2009/07 |
Visualization of Fundamental Symmetries in Nature(Fuzzy System Symposium FSS 2009, University of Tsukuba, Tsukuba, Japan, 14-16 July 2009.) |
発表年月日 | 2009/07 | 発表テーマ | Visualization of Fundamental Symmetries in Nature | 会議名 | Fuzzy System Symposium FSS 2009, University of Tsukuba, Tsukuba, Japan, 14-16 July 2009. | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, C. Perwass | |
98. |
2009/04/06 |
Space Group Visualizer – A Demonstration(Nanyang Technological University, Singapore) |
発表年月日 | 2009/04/06 | 発表テーマ | Space Group Visualizer – A Demonstration | 会議名 | Nanyang Technological University, Singapore | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
99. |
2008/12/26 |
Multivector calculus applied to pose estimation(University of Nagoya, FCS) |
発表年月日 | 2008/12/26 | 発表テーマ | Multivector calculus applied to pose estimation | 会議名 | University of Nagoya, FCS | 学会区分 | 全国学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
100. |
2008/12/12 |
Geometric Algebra and Geometric Calculus with applications to crystal symmetry visualization, wave packets and neural computation(University of Kanazawa, Kanazawa, Japan) |
発表年月日 | 2008/12/12 | 発表テーマ | Geometric Algebra and Geometric Calculus with applications to crystal symmetry visualization, wave packets and neural computation | 会議名 | University of Kanazawa, Kanazawa, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
101. |
2008/11 |
Geometric operations implemented by conformal geometric algebra neural nodes(SICE SSI, Himeji, Japan, 26-28 Nov. 2008.) |
発表年月日 | 2008/11 | 発表テーマ | Geometric operations implemented by conformal geometric algebra neural nodes | 会議名 | SICE SSI, Himeji, Japan, 26-28 Nov. 2008. | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
102. |
2008/10/10 |
Robust geometric feature extraction and classification(ISAMPE 2008, Busan, South Korea) |
発表年月日 | 2008/10/10 | 発表テーマ | Robust geometric feature extraction and classification | 会議名 | ISAMPE 2008, Busan, South Korea | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, M. T. Pham, K. Tachibana, S. Buchholz, T. Yoshikawa, T. Furuhashi | |
103. |
2008/10 |
Basic Multivector Calculus(18th Symposium on Intelligent Systems (FAN 2008), Hiroshima, 23-24 Oct. 2008.) |
発表年月日 | 2008/10 | 発表テーマ | Basic Multivector Calculus | 会議名 | 18th Symposium on Intelligent Systems (FAN 2008), Hiroshima, 23-24 Oct. 2008. | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
104. |
2008/09/19 |
Coordinate independent node computations of important spinor and versor Clifford neurons(SCIS&ISIS’08, Special Session Complex and Hypercomplex Numbers in Intel. Syst., Nagoya, Japan) |
発表年月日 | 2008/09/19 | 発表テーマ | Coordinate independent node computations of important spinor and versor Clifford neurons | 会議名 | SCIS&ISIS’08, Special Session Complex and Hypercomplex Numbers in Intel. Syst., Nagoya, Japan | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, S. Buchholz, K. Tachibana | |
105. |
2008/08/25 |
Interactive 3D Space Group Visualizer(IUCr Osaka, Japan) |
発表年月日 | 2008/08/25 | 発表テーマ | Interactive 3D Space Group Visualizer | 会議名 | IUCr Osaka, Japan | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, C. Perwass | |
106. |
2008/08/23 |
How to teach cubic symmetry groups, using the interactive Space Group Visualizer(Teaching Crystallography in the 21st Century, IUCr Osaka, Japan) |
発表年月日 | 2008/08/23 | 発表テーマ | How to teach cubic symmetry groups, using the interactive Space Group Visualizer | 会議名 | Teaching Crystallography in the 21st Century, IUCr Osaka, Japan | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, C. Perwass | |
107. |
2008/08/19 |
Classification and Clustering of Spatial Patterns with Geometric Algebra(AGACSE 3, Leipzig, Germany) |
発表年月日 | 2008/08/19 | 発表テーマ | Classification and Clustering of Spatial Patterns with Geometric Algebra | 会議名 | AGACSE 3, Leipzig, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, M. T. Pham, K. Tachibana, S. Buchholz, T. Yoshikawa, T. Furuhashi | |
108. |
2008/08/19 |
Interactive 3D Space Group Visualization with CLUCalc based on Geometric Algebra(AGACSE 3, Leipzig, Germany) |
発表年月日 | 2008/08/19 | 発表テーマ | Interactive 3D Space Group Visualization with CLUCalc based on Geometric Algebra | 会議名 | AGACSE 3, Leipzig, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, C. Perwass | |
109. |
2008/08/18 |
Representation of Crystallographic Subperiodic Groups by Geometric Algebra(AGACSE 3, Leipzig, Germany) |
発表年月日 | 2008/08/18 | 発表テーマ | Representation of Crystallographic Subperiodic Groups by Geometric Algebra | 会議名 | AGACSE 3, Leipzig, Germany | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, D. Ichikawa | |
110. |
2008/08/18 |
Two-Dimensional Clifford-Windowed Fourier Transform(AGACSE 3, Leipzig, Germany) |
発表年月日 | 2008/08/18 | 発表テーマ | Two-Dimensional Clifford-Windowed Fourier Transform | 会議名 | AGACSE 3, Leipzig, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, B. Mawardi, S. Adji | |
111. |
2008/06 |
Feature Extractions with Geometric Algebra for Classification of Objects(WCCI, Hongkong, 1-6 June 2008) |
発表年月日 | 2008/06 | 発表テーマ | Feature Extractions with Geometric Algebra for Classification of Objects | 会議名 | WCCI, Hongkong, 1-6 June 2008 | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, Minh Tuan Pham, Kanta Tachibana, Sven Buchholz, Tomohiro Yoshikawa, Takeshi Furuhashi | |
112. |
2008/05/29 |
Geometric Roots of –1(ICCA8, Sao Paulo, Brazil) |
発表年月日 | 2008/05/29 | 発表テーマ | Geometric Roots of –1 | 会議名 | ICCA8, Sao Paulo, Brazil | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
113. |
2008/05/29 |
The interactive 3D space group visualizer based on Clifford geometric algebra description of space groups(ICCA8, Sao Paulo, Brazil) |
発表年月日 | 2008/05/29 | 発表テーマ | The interactive 3D space group visualizer based on Clifford geometric algebra description of space groups | 会議名 | ICCA8, Sao Paulo, Brazil | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer, C. Perwass | |
114. |
2008/05/27 |
Geometric Algebra Feature Extraction and Classification(ICCA8, Sao Paulo, Brazil) |
発表年月日 | 2008/05/27 | 発表テーマ | Geometric Algebra Feature Extraction and Classification | 会議名 | ICCA8, Sao Paulo, Brazil | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, Minh Tuan Pham, Kanta Tachibana, Sven Buchholz, Tomohiro Yoshikawa, Takeshi Furuhashi | |
115. |
2008/03/04 |
Clifford Algebra Neural Networks(Seminar of The Neural Network Study Group of The Society of Instrument and Control Engineers (SICE), Fukui, Japan) |
発表年月日 | 2008/03/04 | 発表テーマ | Clifford Algebra Neural Networks | 会議名 | Seminar of The Neural Network Study Group of The Society of Instrument and Control Engineers (SICE), Fukui, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
116. |
2008/03/04 |
Description and visualization of crystal structures by geometric algebra(Symposium on Frontiers of Computational Science, Nagoya, Japan) |
発表年月日 | 2008/03/04 | 発表テーマ | Description and visualization of crystal structures by geometric algebra | 会議名 | Symposium on Frontiers of Computational Science, Nagoya, Japan | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer, C. Perwass | |
117. |
2007/11/23 |
The hidden beauty of gold(Int. Symp. on App. Mech. and Power Engin. 2007, Fukui, Japan) |
発表年月日 | 2007/11/23 | 発表テーマ | The hidden beauty of gold | 会議名 | Int. Symp. on App. Mech. and Power Engin. 2007, Fukui, Japan | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
118. |
2007/09/20 |
Directional uncertainty in Clifford algebra (for multivector integral transforms)(Chinese Academy of Science, Peking, China) |
発表年月日 | 2007/09/20 | 発表テーマ | Directional uncertainty in Clifford algebra (for multivector integral transforms) | 会議名 | Chinese Academy of Science, Peking, China | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
119. |
2007/09/14 |
Clifford geometric algebra description of space groups and interactive 3D space group visualizer(Department of Mathematics, University of Aveiro, Portugal) |
発表年月日 | 2007/09/14 | 発表テーマ | Clifford geometric algebra description of space groups and interactive 3D space group visualizer | 会議名 | Department of Mathematics, University of Aveiro, Portugal | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
120. |
2007/09/10 |
Optimal Learning Rates for Clifford Neurons(Special Session Complex-Valued Neural Networks, ICANN’07 International Conference on Artificial Neural Networks, Porto, Portugal) |
発表年月日 | 2007/09/10 | 発表テーマ | Optimal Learning Rates for Clifford Neurons | 会議名 | Special Session Complex-Valued Neural Networks, ICANN’07 International Conference on Artificial Neural Networks, Porto, Portugal | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 共同 | 発表者・共同発表者 | S. Buchholz, K. Tachibana, E. Hitzer | |
121. |
2007/09/03 |
Carrier method for the general evaluation and control of pose, molecular conformation, tracking, etc.(WCAA 2007, Workshop on Clifford Analysis and Applications, "Het Pand", Ghent, Belgium) |
発表年月日 | 2007/09/03 | 発表テーマ | Carrier method for the general evaluation and control of pose, molecular conformation, tracking, etc. | 会議名 | WCAA 2007, Workshop on Clifford Analysis and Applications, "Het Pand", Ghent, Belgium | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 共同 | 発表者・共同発表者 | E. Hitzer, K. Tachibana, S. Buchholz | |
122. |
2007/09/03 |
Directional uncertainty principle for quaternion Fourier transform(WCAA 2007, Workshop on Clifford Analysis and Applications, "Het Pand", Ghent, Belgium) |
発表年月日 | 2007/09/03 | 発表テーマ | Directional uncertainty principle for quaternion Fourier transform | 会議名 | WCAA 2007, Workshop on Clifford Analysis and Applications, "Het Pand", Ghent, Belgium | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
123. |
2007/08/22 |
Multivector integral transforms for multi-dimensional signal processing(Institute of Computer Science and Applied Mathematics, Cognitive Systems, University of Kiel, Germany) |
発表年月日 | 2007/08/22 | 発表テーマ | Multivector integral transforms for multi-dimensional signal processing | 会議名 | Institute of Computer Science and Applied Mathematics, Cognitive Systems, University of Kiel, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
124. |
2007/08/17 |
Foundations of geometric algebra for geometric graph theory(Information Systems Engineering, Prof. Dr. H. J. Klein, University of Kiel, Germany) |
発表年月日 | 2007/08/17 | 発表テーマ | Foundations of geometric algebra for geometric graph theory | 会議名 | Information Systems Engineering, Prof. Dr. H. J. Klein, University of Kiel, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
125. |
2007/08/10 |
Computer visualization of crystallographic symmetries(Structure Investigation Group, Prof. Dr. H. Fuess, TU Darmstadt, Germany) |
発表年月日 | 2007/08/10 | 発表テーマ | Computer visualization of crystallographic symmetries | 会議名 | Structure Investigation Group, Prof. Dr. H. Fuess, TU Darmstadt, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
126. |
2007/08/09 |
Introduction to the Space Group Visualizer(Lab. for the Appl. of Synchrotron Radiation (LAS), Prof. em. Dr. H. Wondratschek, Univ. of Karlsruhe, Germany) |
発表年月日 | 2007/08/09 | 発表テーマ | Introduction to the Space Group Visualizer | 会議名 | Lab. for the Appl. of Synchrotron Radiation (LAS), Prof. em. Dr. H. Wondratschek, Univ. of Karlsruhe, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
127. |
2007/08/07 |
Introduction to geometric algebra with examples from computer vision and computer graphics(Center of Research Excellence for Computer Graphics, Darmstadt, Germany) |
発表年月日 | 2007/08/07 | 発表テーマ | Introduction to geometric algebra with examples from computer vision and computer graphics | 会議名 | Center of Research Excellence for Computer Graphics, Darmstadt, Germany | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
128. |
2007/02 |
Fourier and Wavelet Transformations in Geometric Algebra(FCS Colloquium, University of Nagoya, Japan) |
発表年月日 | 2007/02 | 発表テーマ | Fourier and Wavelet Transformations in Geometric Algebra | 会議名 | FCS Colloquium, University of Nagoya, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
129. |
2006/11 |
Applications of Clifford Algebra to Fourier Transformation, Wavelets and Crystal Symmetry(Seminar of Chinese Academy of Science, Peking, PR China) |
発表年月日 | 2006/11 | 発表テーマ | Applications of Clifford Algebra to Fourier Transformation, Wavelets and Crystal Symmetry | 会議名 | Seminar of Chinese Academy of Science, Peking, PR China | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
130. |
2006/11 |
Geometric Algebra Tools: 3D Visualization of Crystal Classes and Space Groups(AIST Diamond Institute, Tsukuba, Japan) |
発表年月日 | 2006/11 | 発表テーマ | Geometric Algebra Tools: 3D Visualization of Crystal Classes and Space Groups | 会議名 | AIST Diamond Institute, Tsukuba, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
131. |
2006/11 |
Interactive Space Group Visualizer(Theoretical Crystallography and Material Science, International Union of Crystallography, Commission on Mathematical and Theoretical Crystallography, Tsukuba, Japan) |
発表年月日 | 2006/11 | 発表テーマ | Interactive Space Group Visualizer | 会議名 | Theoretical Crystallography and Material Science, International Union of Crystallography, Commission on Mathematical and Theoretical Crystallography, Tsukuba, Japan | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
132. |
2006/10 |
The Space Group Visualizer(ISAME 2006, Shanghai, PR China) |
発表年月日 | 2006/10 | 発表テーマ | The Space Group Visualizer | 会議名 | ISAME 2006, Shanghai, PR China | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
133. |
2006/09 |
Foundations of Multidimensional Wavelet Theory: The Quaternion Fourier Transform and its Generalizations(JSIAM annual meeting, Tsukuba, Japan) |
発表年月日 | 2006/09 | 発表テーマ | Foundations of Multidimensional Wavelet Theory: The Quaternion Fourier Transform and its Generalizations | 会議名 | JSIAM annual meeting, Tsukuba, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
134. |
2006/06 |
Crystallographic Space Group Symmetry: Representation and Interactive Visualization by Geometric Algebra(26th International Colloquium on Group Theoretical Methods in Physics, New York, USA) |
発表年月日 | 2006/06 | 発表テーマ | Crystallographic Space Group Symmetry: Representation and Interactive Visualization by Geometric Algebra | 会議名 | 26th International Colloquium on Group Theoretical Methods in Physics, New York, USA | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
135. |
2006/06 |
Monoclinic Spacegroups in Geometric Algebra: The Spacegroup Visualizer(FTHD, Tampere, Finland) |
発表年月日 | 2006/06 | 発表テーマ | Monoclinic Spacegroups in Geometric Algebra: The Spacegroup Visualizer | 会議名 | FTHD, Tampere, Finland | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
136. |
2006/06 |
Quaternion Fourier Transforms on Quaternion Fields(FTHD, Tampere, Finland) |
発表年月日 | 2006/06 | 発表テーマ | Quaternion Fourier Transforms on Quaternion Fields | 会議名 | FTHD, Tampere, Finland | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
137. |
2006/06 |
Three vector generation of crystal space groups in geometric algebra(Symposium on Form 61, Nagoya, Japan) |
発表年月日 | 2006/06 | 発表テーマ | Three vector generation of crystal space groups in geometric algebra | 会議名 | Symposium on Form 61, Nagoya, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
138. |
2005/10 |
The GeometricAlgebra Java Package – Novel Structure Implementation of 5D Geometric Algebra R_4,1 for Object Oriented Euclidean Geometry, Space-Time Physics and Object Oriented Computer Algebra(ALGI 16, Fukuoka, Japan) |
発表年月日 | 2005/10 | 発表テーマ | The GeometricAlgebra Java Package – Novel Structure Implementation of 5D Geometric Algebra R_4,1 for Object Oriented Euclidean Geometry, Space-Time Physics and Object Oriented Computer Algebra | 会議名 | ALGI 16, Fukuoka, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
139. |
2005/09 |
Crystal Cell and Space Lattice Symmetries in Clifford Geometric Algebra(ICNAAM 2005, Rhodos, Greece) |
発表年月日 | 2005/09 | 発表テーマ | Crystal Cell and Space Lattice Symmetries in Clifford Geometric Algebra | 会議名 | ICNAAM 2005, Rhodos, Greece | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
140. |
2005/09 |
Uncertainty Principle for the Clifford Geometric Algebra Cl(3,0) based on Clifford Fourier Transform(ICNAAM 2005, Rhodos, Greece) |
発表年月日 | 2005/09 | 発表テーマ | Uncertainty Principle for the Clifford Geometric Algebra Cl(3,0) based on Clifford Fourier Transform | 会議名 | ICNAAM 2005, Rhodos, Greece | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
141. |
2005/05 |
Crystal Cell Symmetries in Geometric Algebra of Crystal Cell Vectors(Symposium on Form 59, Sapporo, Japan) |
発表年月日 | 2005/05 | 発表テーマ | Crystal Cell Symmetries in Geometric Algebra of Crystal Cell Vectors | 会議名 | Symposium on Form 59, Sapporo, Japan | 学会区分 | 全国学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
142. |
2005/05 |
Geometric Algebra and Interactive Visualization of Crystal Groups(ICCA7, Toulouse, France) |
発表年月日 | 2005/05 | 発表テーマ | Geometric Algebra and Interactive Visualization of Crystal Groups | 会議名 | ICCA7, Toulouse, France | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
143. |
2005/01 |
Special Relativity as Application of Geometric Algebra(Int. Conference on Relativity 2005, Amravati, India) |
発表年月日 | 2005/01 | 発表テーマ | Special Relativity as Application of Geometric Algebra | 会議名 | Int. Conference on Relativity 2005, Amravati, India | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
144. |
2004/11 |
Crystal Cells in Geometric Algebra(International Symposium on Advanced Mechanical Engineering, Fukui, Japan) |
発表年月日 | 2004/11 | 発表テーマ | Crystal Cells in Geometric Algebra | 会議名 | International Symposium on Advanced Mechanical Engineering, Fukui, Japan | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
145. |
2004/05 |
Conic Sections in Geometric Algebra(Geometric Invariance and Applications in Engineering, Xian, PR China) |
発表年月日 | 2004/05 | 発表テーマ | Conic Sections in Geometric Algebra | 会議名 | Geometric Invariance and Applications in Engineering, Xian, PR China | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 招待講演 | 招待講演 | 発表者・共同発表者 | E. Hitzer | |
146. |
2003/11 |
Conic Sections Through Five Points - Classical, Projective, Conformal(Pukyong National University - Fukui University, Symposium on Advanced Mechanical Engineering, 23-24 Nov. 2003, Pukyong National University, Busan, Korea) |
発表年月日 | 2003/11 | 発表テーマ | Conic Sections Through Five Points - Classical, Projective, Conformal | 会議名 | Pukyong National University - Fukui University, Symposium on Advanced Mechanical Engineering, 23-24 Nov. 2003, Pukyong National University, Busan, Korea | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
147. |
2003/11 |
Learning about Conic Sections with Geometric Algebra and Cinderella(Innovative Teaching of Mathematics with geometric algebra - New Concepts and Cutting Edge Technology Applied to Mathematical Education, Int. Symposium 2003.11.20-22, Research Institute for Mathematical Sciences, Kyoto University, Kyoto, Japan) |
発表年月日 | 2003/11 | 発表テーマ | Learning about Conic Sections with Geometric Algebra and Cinderella | 会議名 | Innovative Teaching of Mathematics with geometric algebra - New Concepts and Cutting Edge Technology Applied to Mathematical Education, Int. Symposium 2003.11.20-22, Research Institute for Mathematical Sciences, Kyoto University, Kyoto, Japan | 学会区分 | 国際学会 | 発表形式 | 口頭(招待・特別) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
148. |
2003/07 |
Homogeneous Model of Euclidean Space in the Cl(4,1) Algebra of {origin, 3-space, infinity} and Java Implementation(The 5th Int. Cong. on Industrial and Appl. Math., Minisymposium: Clifford Algebras, Cliff. Analysis and Appl. I: Algebras, Extensions and Appl., Sidney, Australia) |
発表年月日 | 2003/07 | 発表テーマ | Homogeneous Model of Euclidean Space in the Cl(4,1) Algebra of {origin, 3-space, infinity} and Java Implementation | 会議名 | The 5th Int. Cong. on Industrial and Appl. Math., Minisymposium: Clifford Algebras, Cliff. Analysis and Appl. I: Algebras, Extensions and Appl., Sidney, Australia | 学会区分 | 国際学会 | 発表形式 | 口頭(一般) | 単独共同区分 | 単独 | 発表者・共同発表者 | E. Hitzer | |
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