Rchr
J-GLOBAL ID：200901063892281980
Update date: Feb. 14, 2024
Yokoyama Kazuhiro
Yokoyama Kazuhiro
Affiliation and department：
Job title：
Professor
Other affiliations (2)：
-
理学研究科
数学専攻博士課程後期課程
教授
-
Graduate School of Science
Field of Study: Mathematics
Professor
Research field (3)：
Applied mathematics and statistics
, Basic mathematics
, Algebra
Research keywords (4)：
代数的組合せ論
, 計算環論
, Algebraic Combinatorics
, Computer Algebra
Research theme for competitive and other funds (23)：
- 2021 - 2024 グレブナー基底計算の理論計算量解析とその効率的な実装
- 2018 - 2021 Further development of algorithms for Groebner basis computation
- 2015 - 2018 Efficient methods for Groebner basis computation, verification and thier applications
- 2009 - 2012 Developments ofcomputational theory of real algebraic geometry for optimization problem
- 2006 - 2009 記号代数的近似と数値的近似の組合せによる数値数式融合計算の研究
- 2007 - 2009 Research on rationally connected varieties
- 2006 - 2009 The Study of theoretical aspects and practical aspect on Grobner Bases
- 2005 - 2007 記号・代数計算に基づく計算技法の一般的適用方法論の確立と適用規模の拡大
- 2005 - 2007 Development of efficient algorithms and software for solving parametric systems
- 2005 - 2007 数値処理と数式処理の融合による計算機援用解析学の可能性に関する基礎的研究
- 2003 - 2006 Realization of decompositions of algebraic structures on real computer
- 2006 - 2006 計算可換代数と計算代数幾何についての国際研究集会の企画調査
- 2004 - 2005 数理モデリングの基礎技術
- 2005 - 2005 グレブナー基底の理論的有効性と実践的有効性に関する共同研究の企画調査
- 2002 - 2004 記号・代数計算による最適化問題解法と定理自動証明の研究
- 2002 - 2004 Development of high performance computer algebra software
- 2001 - 2003 Study on Number Theoretic Algorithms and Developments of Systems for Number Theory
- Study on Algebraic Algorithms
- Study on Algebraic Combinatorics
- Study on Application of Algebraic Algorithm to Engineering
- 代数的算法に関する研究
- 代数的算法の工学(暗号等)への応用に関する研究
- 代数的組合せ論に関する研究
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Papers (80)：
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Momonari Kudo, Kazuhiro Yokoyama. On Hilbert-Poincare series of affine semi-regular polynomial sequences and related Groebner bases. Mathematical Foundations for Post-Quantum Cryptography, Mathematics for Industry. 2024
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Kazuhiro Yokoyama. On Factorization of Parametric Polynomials. accepted at Commentarii Mathematici Universitatis Sancti Pauli. 2024
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Yuta Kambe, Akira Katayama, Yusuke Aikawa, Yuki Ishihara, Masaya Yasuda, Kazuhiro Yokoyama. Computing endomorphism rings of supersingular elliptic curves by finding cycles in concatenated supersingular isogeny graphs. accepted at Commentarii Mathematici Universitatis Sancti Pauli. 2024
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Yuta Kambe, Yasushi Takahashi, Masaya Yasuda, Kazuhiro Yokoyama. On the feasibility of computing constructive Deuring correspondence. Banach Center Publications: Post-proceedings of Number-Theoretic Methods in Cryptology (NuTMiC 2021). 2023. 126. 105-121
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Ryoya Fukasaku, Yasuhiko Ikematsu, Momonari Kudo, Masaya Yasuda, Kazuhiro Yokoyama. Introduction to algebraic approaches for solving isogeny path-finding problems. RIMS Kˆokyˆuroku Bessatsu. 2022. B90. 169-184
ｍore...
MISC (39)：
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外川拓真, 横山和弘, 岩根秀直, 松崎拓也. QEのための積分式の簡約化. RIMS研究集会「数式処理とその周辺分野の研究 - Computer Algebra and Related Topics」. 2016
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横山 和弘, 野呂 正行. 楕円曲線の同種写像の公式計算 (数式処理とその周辺分野の研究). 数理解析研究所講究録. 2015. 1955. 146-157
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野呂 正行, 横山 和弘. グレブナー基底候補の高速生成法とその検証について (数式処理とその周辺分野の研究). 数理解析研究所講究録. 2014. 1907. 122-131
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Masayuki Noro, Kazuhiro Yokoyama. Computer algebra, its history and current state-with the Gröbner basis and quantifier elimination as the center. SUGAKU. 2014. 66. 3. 298-309
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Yasuda Masaya, Shimoyama Takeshi, Yokoyama Kazuhiro, Kogure Jun. RL-003 A customer information analysis between enterprises using homomorphic encryption. 2013. 12. 4. 15-22
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Books (4)：
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多項式と計算機代数
朝倉書店 2022 ISBN:9784254117677
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Algorithms of Quantifier Elimination and their Applications
2011 ISBN:9784130614061
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岩波数学辞典第4版
岩波書店 2007
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グレブナー基底の計算 基礎篇,計算代数入門
東京大学出版会 2003
Works (5)：
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Application of Computer Algebra to Engineering
2000 - 現在
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計算機代数の暗号および制御、設計への応用
2000 - 現在
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オーストリア ヨハネスケプラー大学記号計算研究所(RISC-Linz) 文部科学省在外研究員
2003 - 2003
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フランス パリ第6大学 情報研究所(LIP6) 招聘教育研究者
2000 - 2000
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オーストリア ヨハネスケプラー大学記号計算研究所(RISC-Linz) 客員講師
1994 - 1995
Education (3)：
- 1983 - 1983 The University of Tokyo Graduate School, Division of Science
- - 1983 The University of Tokyo Graduate School, Division of Science
- - 1981 The University of Tokyo Faculty of Science
Professional career (1)：
- Doctor(Science) (Kyushu University)
Work history (9)：
- 2023/04 - 現在 Rikkyo University College of Science emeritus professor
- 2005/04 - 2023/03 RIKKYO UNIVERSITY Graduate School of Science Field of Study: Mathematics Professor
- 2005/04 - 2023/03 RIKKYO UNIVERSITY College of Science Department of Mathematics Professor
- 2000/12/01 - 2005/03/31 Kyushu University Faculty of Mathematics
- 1999/04 - 2000/11 富士通研究所 セキュアコンピューティング研究部 主任研究員
- 1996/11 - 1999/03 Fujitsu Laboratories LTD. Senior Researcher
- 1995/04/01 - 1996/03/31 Fujitsu Laboratories LTD. Chief Researcher
- 1990/12/01 - 1995/03/01 Fujitsu Laboratories LTD. Researcher
- 1985/04/01 - 1990/11/30 Fujitsu Researcher
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Committee career (1)：
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