Sekigawa Hiroshi

セキガワヒロシ | Sekigawa Hiroshi

Affiliation and department：
Job title： Professor
Homepage URL (2)： https://www.rs.tus.ac.jp/~sekigawa/index-j.html , http://www.rs.tus.ac.jp/~sekigawa/index.html

Research field (2)： Applied mathematics and statistics , Basic mathematics

Research keywords (1)： Computational Mathematics

Research theme for competitive and other funds (8)：

2021 - 2024 On the Study of Symbolic-Numeric Computation Using Randomized and/or Approximation Algorithms
2018 - 2021 Research on the influence of perturbation to algebraic problems and coping methodology for them
2017 - 2020 Application of Quantum Algorithms for Lattice Problems to Post-Quantum Cryptography and Quantum Artificial Intelligence
2015 - 2018 Study of the Influence of Perturbations on Algebraic Problems
2013 - 2016 Quantum Fourier Transform over Non-Abelian Groups and Its Application

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Papers (57)：

Hiroshi Sekigawa. An approximation algorithm for the nearest decomposable polynomial in the Hamming distance. ACM Communications in Computer Algebra. 2023. 57. 3. 119-122
Yosuke Sato, Hiroshi Sekigawa, Ryoya Fukasaku, Katsusuke Nabeshima. On Parametric Border Bases. Proceedings of MACIS2018(8th International Conference on Mathematical Aspects of Computer and Information Sciences), LNCS. 2020. 11989. 10-15
Kazuki Kondo,Hiroshi Sekigawa. Robust computation methods for sparse interpolation of multivariate polynomials. ACM Communications in Computer Algebra. 2019. 53. 3. 130-133
Dai Numahata, Hiroshi Sekigawa. Robust algorithms for sparse interpolation of multivariate polynomials. ACM Communications in Computer Algebra. 2018. 52. 4. 145-147
Yosuke Sato, Ryoya Fukasaku, Hiroshi Sekigawa. On Continuity of the Roots of a Parametric Zero Dimensional Multivariate Polynomial Ideal. Proceedings of International Symposium on Symbolic and Algebraic Computation (ISSAC 2018). 2018. 359-365

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MISC (119)：

徳田陸成,武田渉,関川浩. 因数分解を利用した多変数多項式のdecomposition. 京都大学数理解析研究所講究録. 2024. 2280. 104-112
長田長龍,武田渉,関川浩. ヴィーフェリッヒ素数の多項式の類似. 京都大学数理解析研究所講究録. 2024. 2280. 96-103
Hiroshi Sekigawa. Singh, Jitender; Garg, Rishu. A note on Perron's irreducibility criterion. (English summary). Mathematical Reviews. 2024. MR4609623
関川浩. 合成で表現可能な最近接多項式を求める近似アルゴリズム. 数式処理. 2024. 30. 1. 53-56
Hiroshi Sekigawa. Ludew, Jakub Jan; Ro_zanski, Michal; Slowik, Roksana; Witula, Roman. A new description of the complex roots using zeros of some polynomials (English summary). Mathematical Reviews. 2023. MR4552674

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Patents (4)：

判定装置、計算装置、および学習システム
変換装置、判定装置、および計算装置
判定装置、計算装置、および学習システム
変換装置、判定装置、および計算装置

Books (3)：

理工系の基礎数学II
丸善出版 2018 ISBN:9784621302507
理工系の基礎数学I
丸善出版 2018 ISBN:9784621302491
応用数理ハンドブック
朝倉書店 2013 ISBN:9784254111415

Lectures and oral presentations (159)：

多変数多項式の近似decompositionとその応用
(第33回日本数式処理学会大会 2024)
二変数多項式の近似decompositionとその応用
(Risa/Asir Conference 2024 2024)
数値数式融合計算
(日本数学会2024年度年会 2024)
因数分解を利用した多変数多項式のdecomposition
(RIMS共同研究(公開型)“Computer Algebra-Foundations and Applications” 2023)
ヴィーフェリッヒ素数の多項式の類似
(RIMS共同研究(公開型)“Computer Algebra-Foundations and Applications” 2023)

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Education (3)：

- 1989 The University of Tokyo Graduate School, Division of Science Department of Mathematics
- 1989 The University of Tokyo Graduate School, Division of Science Department of Mathematics
- 1986 The University of Tokyo Faculty of Science Department of Mathematics

Professional career (1)：

Ph.D. (Mathematical Sciences) (The University of Tokyo)

Work history (6)：

2013 - 現在 Tokyo University of Science Professor
2010 - 2013 Tokai University Associate Professor
2002 - 2010 NTT Senior Research Scientist
1998 - 1999 NTT Senior Research Scientist
1994 - 1998 NTT Research Scientist

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Committee career (50)：

2023/06/23 - 2025/06 日本応用数理学会学会副会長
2023/09/28 - 2024/08 The 10th International Symposium on Symbolic Computation in Software Science (SCSS 2024) Local Arrangements Committee Member
2023/08/28 - 2024/07 The 49th International Symposium on Symbolic and Algebraic Computation (ISSAC 2024) Program Committee Member
2022/09/21 - 2024/06 日本数式処理学会常任委員
2022/06/29 - 2024/06 日本数式処理学会学会理事等

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Awards (1)：

2007/03 - 公益財団法人電気通信普及財団電気通信普及財団賞(テレコムシステム技術賞)奨励賞 ISO/IEC MPEG-4 Audio Lossless Coding (ALS)におけるIEEE754浮動小数点信号の可逆符号化

Association Membership(s) (7)：

Association for Computing Machinery , The Japan Society for Industrial and Applied Mathematics , 電子情報通信学会 , Japan Society for Symbolic and Algebraic Computation , 情報処理学会 , アメリカ数学会 , International Conference on Symbolic-Numeric Computation 2014

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