SEKIGAWA Hiroshi 関川浩

Researcher Number	00396178
Other IDs
Affiliation *help	2016 – 2018 : 東京理科大学, 理学部第一部応用数学科, 教授 2016 – 2018 : 東京理科大学, 理学部第一部数理情報科学科, 教授 2013 – 2015 : 東京理科大学, 理学部, 教授 2010 – 2012 : 東海大学, 理学部, 准教授 2009 : NTT Communication Science Laboratories, 協創情報研究部, 主任研究員 2008 : 日本電信電話株式会社NTTコミュニケーション科学基礎研究所, 人間情報研究部, 主任研究員
Review Section/Research Field	Principal Investigator Fundamental theory of informatics / Basic Section 60010:Theory of informatics-related / Theory of informatics Except Principal Investigator Theory of informatics / Fundamental theory of informatics
Keywords	Principal Investigator 誤差 / 数値数式融合計算 / 摂動 / 多項式 / 代数方程式 / 安定化理論 / 近似 / グレブナ基底 / 安定性 / 凸包構成 … More Except Principal Investigator 格子暗号 / 量子アルゴリズム / 量子プッシュダウンオートマトン / 表現論 / 量子ニューラルネットワーク / 量子人工知能 / 量子暗号 / 量子フーリエ変換 / 格子問題 / 複素アダマール行列 / 量子回路の等価性判定 / 多準位量子ゲート / パターンマッチング / Cosine-Sine分解 / Mutually Unbiased Basis / 離散対数問題 / 対称群 / 隣接互換グラフ / 耐量子暗号 / フーリエ変換 / 量子コンピュータ / Steane符号 / ポスト量子暗号 / 深層学習 / SATアルゴリズム / Linear Nearest Neighbor / 非可換群 / 隠れ部分群問題 / 量子計算理論 / 行列分解 / LWE暗号 / 量子回路設計 Less

代数問題に摂動が及ぼす影響とそれに対処する方法論の研究Principal InvestigatorOngoing
- Principal Investigator
  
  関川浩
- Project Period (FY)
  2018 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60010:Theory of informatics-related
- Research Institution
  Tokyo University of Science
格子問題を解く量子アルゴリズムの耐量子暗号と量子人工知能への応用Ongoing
- Principal Investigator
  
  河野泰人
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Theory of informatics
- Research Institution
  NTT Communication Science Laboratories
Study of the Influence of Perturbations on Algebraic ProblemsPrincipal Investigator
- Principal Investigator
  
  関川浩
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Theory of informatics
- Research Institution
  Tokyo University of Science
Quantum Fourier Transform over Non-Abelian Groups and Its Application
- Principal Investigator
  
  Kawano Yasuhito
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Theory of informatics
- Research Institution
  NTT Communication Science Laboratories
On the Study of Symbolic-Numeric Computation for Algebraic Problems with Empirical DataPrincipal Investigator
- Principal Investigator
  
  SEKIGAWA HIROSHI
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Fundamental theory of informatics
- Research Institution
  Tokyo University of Science
  Tokai University
On the Study of Highly Reliable Symbolic-Numeric Computation for Algebraic Problems with Empirical DataPrincipal Investigator
- Principal Investigator
  
  SEKIGAWA Hiroshi
- Project Period (FY)
  2009 – 2011
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Fundamental theory of informatics
- Research Institution
  Tokai University
  NTT Communication Science Laboratories
Quantum Circuit Design using Matrix Decomposition and its application
- Principal Investigator
  
  Kawano Yasuhito
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Fundamental theory of informatics
- Research Institution
  NTT Communication Science Laboratories

All 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 Other

All Journal Article Presentation Book

[Book] 応用数理ハンドブック2013
- Author(s)
  薩摩順吉、大石進一、杉原正顯、合原一幸、芦野隆一、畔上秀幸、一森哲男、大塚厚二、岡本久、白柳潔、杉原厚吉、杉山将、鈴木貴、関川浩、田辺誠、田端正久、土谷隆、中村憲、奈良高明、成田清正、萩谷昌己、萩原一郎、引原隆士、藤井裕矩、松木平淳太、宮本裕一郎　他
- Total Pages
  685
- Publisher
  朝倉書店
- Data Source
  KAKENHI-PROJECT-24500022
[Journal Article] Robust algorithms for sparse interpolation of multivariate polynomials2018
- Author(s)
  Dai Numahata, Hiroshi Sekigawa
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K00025
[Journal Article] The nearest polynomial to multiple given polynomials with a given zero in the real case2017
- Author(s)
  Hiroshi Sekigawa
- Journal Title
  
  Theoretical Computer Science
  
  Volume : 681 Pages : 167-175
- DOI
  10.1016/j.tcs.2017.03.033
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K00025
[Journal Article] 2根を指定した場合の最近接多項式2017
- Author(s)
  櫻井優太、関川浩
- Journal Title
  
  京都大学数理解析研究所講究録
  
  Volume : 印刷中
- Open Access / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K00025
[Journal Article] An Algorithm for Symbolic-Numeric Sparse Interpolation of Multivariate Polynomials Whose Degree Bounds are Unknown2017
- Author(s)
  Dai Numahata, Hiroshi Sekigawa
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : 印刷中
- Acknowledgement Compliant / Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K00025
[Journal Article] Quantum Fourier transform over symmetric groups --- improved result2016
- Author(s)
  Yasuhito Kawano and Hiroshi Sekigawa
- Journal Title
  
  Journal of Symbolic Computation
  
  Volume : 75 Pages : 219-243
- DOI
  10.1016/j.jsc.2015.11.016
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25330021
[Journal Article] 複数の多項式に対する最近多項式2015
- Author(s)
  関川浩
- Journal Title
  
  数式処理
  
  Volume : 2
- Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24500022
[Journal Article] A Sequence of Nearest Polynomials with Given Factors2014
- Author(s)
  Hiroshi Sekigawa
- Journal Title
  
  Lecture Notes in Computer Science
  
  Volume : -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24500022
[Journal Article] Quantum Fourier Transform over Symmetric Groups --- Improved Result2014
- Author(s)
  Yasuhito Kawano and Hiroshi Sekigawa
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : 48 (3) Pages : 127-129
- DOI
  10.1145/2733693.2733708
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25330021
[Journal Article] The Nearest Polynomial to Multiple Given Polynomials with a Given Zero2014
- Author(s)
  Hiroshi Sekigawa
- Journal Title
  
  Proc. 2014 Symposium on Symbolic-Numeric Computation
  
  Volume : 5 Pages : 144-145
- DOI
  10.1145/2631948.2631975
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24500022
[Journal Article] 連立代数方程式の解の個数を保つ摂動限界2013
- Author(s)
  関川浩、白柳潔
- Journal Title
  
  数式処理
  
  Volume : 19 Pages : 37-40
- Data Source
  KAKENHI-PROJECT-24500022
[Journal Article] Maximal Perturbation for Preserving the Number of Solutions of a Polynomial System2012
- Author(s)
  Hiroshi Sekigawa, Kiyoshi Shirayanagi
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : Vol. 46 Pages : 120-121
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24500022
[Journal Article] Computing the Nearest Polynomial with a Zero in a Given Domain by using Piecewise Rational Functions2011
- Author(s)
  H. Sekigawa
- Journal Title
  
  Journal of Symbolic Computation
  
  Volume : Vol.46 Issue 12 Pages : 1318-1335
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] Computing the Nearest Polynomial with a Zero in a Given Domain by using Piecewise Rational Functions2011
- Author(s)
  Hiroshi Sekigawa
- Journal Title
  
  Journal of Symbolic Computation
  
  Volume : 46 Pages : 1318-1335
- DOI
  10.1016/j.jsc.2011.08.012
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] Isolated Real Zero of a Real Polynomial System under Perturbation2011
- Author(s)
  Hiroshi Sekigawa, Kiyoshi Shirayanagi
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : 45 Pages : 131-132
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] Isolated Real Zero of a Real Polynomial System under Perturbation2011
- Author(s)
  H. Sekigawa and K. Shirayanagi
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : Vol.45, No.2 Pages : 131-132
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] Solvability of Bivariate Polynomial Systems under Perturbation2010
- Author(s)
  H. Sekigawa and K. Shirayanagi
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : Vol.44, No.3 Pages : 147-148
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] Solvability of Bivariate Polynomial Systems under Perturbation2010
- Author(s)
  Hiroshi Sekigawa, Kiyoshi Shirayanagi
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : 44 Pages : 147-148
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] A Sequence of Nearest Polynomials with Given Factors2009
- Author(s)
  Hiroshi Sekigawa
- Journal Title
  
  Math-for-Industry Lecture Note Vol.22
  
  Pages : 187-190
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] Synthesis of quantum circuits for d-level systems by using Cosine-Sine decomposition2009
- Author(s)
  Y.Nakajima, Y.Kawano, H.Sekigawa, M.Nakanishi, S.Yamashita, Y.Nakashima
- Journal Title
  
  Quantum Information and Computation Vol.9,No.5&6
  
  Pages : 423-443
- Data Source
  KAKENHI-PROJECT-20500024
[Journal Article] Deciding Divisibility between Polynomials with Inexact Coefficients2009
- Author(s)
  H. Nakayama and H. Sekigawa
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : Vol.43, No.3 Pages : 91-94
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] A Sequence of Nearest Polynomials with Given Factors2009
- Author(s)
  H. Sekigawa
- Journal Title
  
  Math-for-Industry Lecture Note
  
  Volume : Vol.22 Pages : 187-190
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] A New Method of Reducing Exact Computations to Obtain Exact Results2009
- Author(s)
  K. Shirayanagi and H. Sekigawa
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume : Vol.43, No.3 Pages : 102-104
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Journal Article] Reducing Exact Computations to Obtain Exact Results Based on Stabilization Techniques2009
- Author(s)
  K. Shirayanagi and H. Sekigawa
- Journal Title
  
  Proceedings of International Workshop on Symbolic-Numeric Computation 2009
  
  Pages : 191-197
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] パラメトリックな連立代数方程式の根の連続性について2018
- Author(s)
  佐藤洋祐、深作亮也、関川浩
- Organizer
  Risa/Asir Conference 2018
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] 複数の点の値が指定された場合の最近接多項式2018
- Author(s)
  若月雄麻、関川浩
- Organizer
  Risa/Asir Conference 2018
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] 複数の零点を指定した場合の最近接多項式2017
- Author(s)
  朝田高行，関川浩
- Organizer
  Risa/Asir Conference 2017
- Place of Presentation
  金沢大学（石川県金沢市）
- Year and Date
  2017-03-28
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] Robust algorithms for sparse interpolation of multivariate polynomials2017
- Author(s)
  Dai Numahata, Hiroshi Sekigawa
- Organizer
  42nd International Symposium on Symbolic and Algebraic Computation
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] 複数の零点を指定した場合の最近接多項式～2重根を持つ場合～2017
- Author(s)
  北見宗士、関川浩
- Organizer
  RIMS共同研究（公開型）Computer Algebra―Theory and its Applications
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] On continuity of the roots of a parametric zero dimensional multivariate polynomial ideal2017
- Author(s)
  Yosuke Sato, Hiroshi Sekigawa
- Organizer
  23rd Conference on Applications of Computer Algebra
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] 複数の零点を指定した場合の最近接多項式～簡潔な距離表示について～2017
- Author(s)
  若月雄麻、関川浩
- Organizer
  RIMS共同研究（公開型）Computer Algebra―Theory and its Applications
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] 格子問題を解く量子アルゴリズムについて2017
- Author(s)
  河野泰人, 関川浩
- Organizer
  電子情報通信学会　第36回量子情報技術研究会（QIT36)
- Data Source
  KAKENHI-PROJECT-17K00027
[Presentation] 格子暗号の安全性について2017
- Author(s)
  河野泰人, 関川浩
- Organizer
  電子情報通信学会　第37回量子情報技術研究会（QIT37)
- Data Source
  KAKENHI-PROJECT-17K00027
[Presentation] 格子暗号解読に向けた量子アルゴリズム研究の取り組みについて2017
- Author(s)
  河野泰人, 関川浩
- Organizer
  量子ICTフォーラム
- Data Source
  KAKENHI-PROJECT-17K00027
[Presentation] Quantum Algorithm for Lattice Problems2016
- Author(s)
  Yasuhito Kawano and Hiroshi Sekigawa
- Organizer
  Conference on Quantum Information Processing（QIP）
- Place of Presentation
  Banff Centre（カナダ）
- Year and Date
  2016-01-11
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25330021
[Presentation] An Algorithm for Symbolic-Numeric Sparse Interpolation of Multivariate2016
- Author(s)
  Dai Numahata, Hiroshi Sekigawa
- Organizer
  41st International Symposium on Symbolic and Algebraic Computation
- Place of Presentation
  ウォータールー（カナダ）
- Year and Date
  2016-07-20
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] Degree Estimate for Black-Box Multivariate Polynomials in Symbolic-Numeric Sparse Interpolation2016
- Author(s)
  Dai Numahata, Hiroshi Sekigawa
- Organizer
  Milestones in Computer Algebra
- Place of Presentation
  ウォータールー（カナダ）
- Year and Date
  2016-07-18
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] 2根を指定した場合の最近接多項式2015
- Author(s)
  櫻井優太、関川浩
- Organizer
  京都大学数理解析研究所研究所「数式処理とその周辺分野の研究」
- Place of Presentation
  京都大学（京都府京都市）
- Year and Date
  2015-12-04
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] The Nearest Polynomial with Two or More Given Zeros2015
- Author(s)
  Hiroshi Sekigawa
- Organizer
  Third Workshop on Hybrid Methodologies for Symbolic-Numeric Computation
- Place of Presentation
  China National Convention Center（北京、中国）
- Year and Date
  2015-08-11
- Int'l Joint Research / Invited
- Data Source
  KAKENHI-PROJECT-15K00025
[Presentation] Quantum Fourier Transform over Symmetric Groups --- Improved Result2014
- Author(s)
  Yasuhito Kawano and Hiroshi Sekigawa
- Organizer
  QIP 2014
- Place of Presentation
  AXA Auditorium, Barcelona
- Data Source
  KAKENHI-PROJECT-25330021
[Presentation] 複数の多項式に対する最近多項式2014
- Author(s)
  関川浩
- Organizer
  第23回日本数式処理学会大会
- Place of Presentation
  徳島大学（徳島県徳島市）
- Year and Date
  2014-05-31
- Data Source
  KAKENHI-PROJECT-24500022
[Presentation] The Nearest Polynomial to Multiple Given Polynomials with a Given Zero2014
- Author(s)
  Hiroshi Sekigawa
- Organizer
  2014 Symposium on Symbolic-Numeric Computation
- Place of Presentation
  上海（中国）
- Year and Date
  2014-07-30
- Data Source
  KAKENHI-PROJECT-24500022
[Presentation] Quantum Fourier Transform over Symmetric Groups2013
- Author(s)
  Yasuhito Kawano and Hiroshi Sekigawa
- Organizer
  ACM ISSAC 2013
- Place of Presentation
  Northeastern University, Boston
- Data Source
  KAKENHI-PROJECT-25330021
[Presentation] 対称群上の量子フーリエ変換アルゴリズム2013
- Author(s)
  河野泰人、関川浩
- Organizer
  電子情報通信学会　量子情報技術研究会
- Place of Presentation
  北海道大学
- Data Source
  KAKENHI-PROJECT-25330021
[Presentation] Maximal Perturbation for Preserving the Number of Solutions of a Polynomial System2012
- Author(s)
  Hiroshi Sekigawa, Kiyoshi Shirayanagi
- Organizer
  International Symposium on Symbolic and Algebraic Computation 2012
- Place of Presentation
  グルノーブル大（グルノーブル、フランス）
- Data Source
  KAKENHI-PROJECT-24500022
[Presentation] 連立代数方程式の解の個数を保つ摂動限界2012
- Author(s)
  関川浩, 白柳潔
- Organizer
  Risa/Asir Conference
- Place of Presentation
  神戸大学(神戸市)
- Year and Date
  2012-03-20
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] 連立代数方程式の解の個数を保つ摂動限界2012
- Author(s)
  関川浩, 白柳潔
- Organizer
  Risa/Asir Conference 2012
- Place of Presentation
  神戸大学(神戸市)
- Year and Date
  2012-03-20
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] Matrix Decomposition and its Application to Complex Hadamard matrices2011
- Author(s)
  Y.Kawano, H.Sekigawa
- Organizer
  The 14^<th> Workshop on Quantum Information Processing 2011
- Place of Presentation
  シンガポール
- Year and Date
  2011-01-10
- Data Source
  KAKENHI-PROJECT-20500024
[Presentation] 係数に誤差のある実係数連立代数方程式の孤立実数解について2011
- Author(s)
  関川浩, 白柳潔
- Organizer
  Risa/Asir Conference 2011
- Place of Presentation
  神戸大学(神戸市)
- Year and Date
  2011-03-21
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] 係数に誤差のある実係数連立代数方程式の孤立実数解について2011
- Author(s)
  関川浩, 白柳潔
- Organizer
  Risa/Asir Conference
- Place of Presentation
  神戸大学(神戸市)
- Year and Date
  2011-03-21
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] Isolated Real Zero of a Real Polynomial System under Perturbation2011
- Author(s)
  H. Sekigawa and K. Shirayanagi
- Organizer
  International Symposium on Symbolic and Algebraic Computation 2011
- Place of Presentation
  サンノゼコンベンションセンター(米国)
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] Isolated Real Zero of a Real Polynomial System under Perturbation2011
- Author(s)
  Hiroshi Sekigawa, Kiyoshi Shirayanagi
- Organizer
  International Symposium on Symbolic and Algebraic Computation 2011
- Place of Presentation
  サンノゼコンベンションセンター(米国)
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] 係数に誤差のある連立代数方程式の可解性について2010
- Author(s)
  関川浩, 白柳潔
- Organizer
  第19回日本数式処理学会大会
- Place of Presentation
  名古屋大学(名古屋市)
- Year and Date
  2010-06-13
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] Application of Matrix Decomposition to Finding Complex Hadamard Matrices2010
- Author(s)
  Y.Kawano, H.Sekigawa
- Organizer
  The 13^<th> Workshop on Quantum Information Processing 2010
- Place of Presentation
  チューリッヒ工科大,スイス
- Year and Date
  2010-01-20
- Data Source
  KAKENHI-PROJECT-20500024
[Presentation] 安定化理論に基づくISCZ法の凸包構成への応用2010
- Author(s)
  白柳潔, 関川浩
- Organizer
  京都大学数理解析研究所研究集会Computer Algebra-Design of Algorithms, Implementations and Applications
- Place of Presentation
  京都大学(京都市)
- Year and Date
  2010-12-03
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] Solvability of Bivariate Polynomial Systems under Perturbation2010
- Author(s)
  H. Sekigawa and K. Shirayanagi
- Organizer
  International Symposium on Symbolic and Algebraic Computation 2010
- Place of Presentation
  ミュンヘン工科大学(ドイツ)
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] 安定化理論に基づくISCZ法の凸包構成への応用,京都大学数理解析研究所研究集会2010
- Author(s)
  白柳潔, 関川浩
- Organizer
  Computer Algebra-Design of Algorithms, Implementations and Applications
- Place of Presentation
  京都大学(京都市)
- Year and Date
  2010-12-03
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] 係数に誤差のある連立代数方程式の可解性について2010
- Author(s)
  関川浩, 白柳潔
- Organizer
  第19回日本数式処理学会大会
- Place of Presentation
  名古屋大学(名古屋市)
- Year and Date
  2010-06-13
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] Solvability of Bivariate Polynomial Systems under Perturbation2010
- Author(s)
  Hiroshi Sekigawa, Kiyoshi Shirayanagi
- Organizer
  International Symposium on Symbolic and Algebraic Computation 2010
- Place of Presentation
  ミュンヘン工科大学(ドイツ)
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] 安定化理論に基づくISCZ法の有効性について,京都大学数理解析研究所研究集会2009
- Author(s)
  白柳潔, 関川浩
- Organizer
  Computer Algebra-Design of Algorithms, Implementations and Applications
- Place of Presentation
  京都大学(京都市)
- Year and Date
  2009-11-04
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] Reducing Exact Computations to Obtain Exact Results Based on Stabilization Techniques2009
- Author(s)
  K. Shirayanagi and H. Sekigawa
- Organizer
  The 3^<rd> International Symposium on Symbolic and Algebraic Computation
- Place of Presentation
  コープイン京都(京都市)
- Year and Date
  2009-08-03
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] A Sequence of Nearest Polynomials with Given Factors2009
- Author(s)
  H. Sekigawa
- Organizer
  The 9th Asian Symposium on Computer Mathematics and the 3rd International Conference on Mathematical Aspects of Computer and Information Sciences
- Place of Presentation
  JALリゾートシーホークホテル福岡(福岡市)
- Year and Date
  2009-12-14
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] A New Method of Reducing Exact Computations to Obtain Exact Results2009
- Author(s)
  K. Shirayanagi and H. Sekigawa
- Organizer
  International Symposium on Symbolic and Algebraic Computation2009
- Place of Presentation
  Korea Institute for Advanced Study(韓国)
- Year and Date
  2009-07-30
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] Deciding Divisibility between Polynomials with Inexact Coefficients2009
- Author(s)
  H. Nakayama and H. Sekigawa
- Organizer
  International Symposium on Symbolic and Algebraic Computation2009
- Place of Presentation
  Korea Institute for Advanced Study(韓国)
- Year and Date
  2009-07-30
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] 行列分解と複素アダマール行列への応用2009
- Author(s)
  河野泰人, 関川浩
- Organizer
  電子通信学会量子情報技術研究会
- Place of Presentation
  電気通信大学
- Year and Date
  2009-11-04
- Data Source
  KAKENHI-PROJECT-20500024
[Presentation] Producing quantum circuits of the extended Clifford group2009
- Author(s)
  Y.Kawano, H.Sekigawa
- Organizer
  The 12^<th> Workshop on Quantum Information Processing 2009
- Place of Presentation
  Santa Fe, アメリカ
- Year and Date
  2009-01-14
- Data Source
  KAKENHI-PROJECT-20500024
[Presentation] A Sequence of Nearest Polynomials with Given Factors2009
- Author(s)
  Hiroshi Sekigawa
- Organizer
  The 9th Asian Symposium on Computer Mathematics and the 3rd International Conference on Mathematical Aspects of Computer and Information Sciences
- Place of Presentation
  JALリゾートシーホークホテル福岡(福岡市)
- Year and Date
  2009-12-14
- Data Source
  KAKENHI-PROJECT-21500026
[Presentation] Quantum Fourier Transform over Symmetric Groups
- Author(s)
  Yasuhito Kawano, Hiroshi Sekigawa
- Organizer
  38th International Symposium on Symbolic and Algebraic Computation
- Place of Presentation
  ノースイースタン大学（ボストン、米国）
- Data Source
  KAKENHI-PROJECT-24500022
[Presentation] Computing a Perturbation Bound for Preserving the Number of Common Zeros of a Polynomial System
- Author(s)
  Hiroshi Sekigawa, Kiyoshi Shirayanagi
- Organizer
  18th Asian Technology Conference in Mathematics
- Place of Presentation
  インド工科大学（ムンバイ、インド）
- Data Source
  KAKENHI-PROJECT-24500022
[Presentation] 制限付きの最小包囲正方形問題
- Author(s)
  小形幸輝、関川浩
- Organizer
  Risa/Asir Conference 2014
- Place of Presentation
  神戸大学（神戸市）
- Data Source
  KAKENHI-PROJECT-24500022
[Presentation] 連立代数方程式の解の個数を保つ摂動限界
- Author(s)
  関川浩、白柳潔
- Organizer
  第21回日本数式処理学会大会
- Place of Presentation
  山口大学（山口市）
- Data Source
  KAKENHI-PROJECT-24500022
[Presentation] Quantum Fourier Transform over Symmetric Groups --- Improved Result
- Author(s)
  Yasuhito Kawano and Hiroshi Sekigawa
- Organizer
  ACM ISSAC (International Symposium on Symbolic and Algebraic Computation) 2014
- Place of Presentation
  神戸大学（兵庫県神戸市）
- Year and Date
  2014-07-23 – 2014-07-25
- Data Source
  KAKENHI-PROJECT-25330021
[Presentation] 解を持たない連立代数方程式に対する係数の摂動限界
- Author(s)
  関川浩、白柳潔
- Organizer
  Risa/Asir Conference 2013
- Place of Presentation
  神戸大学（神戸市）
- Data Source
  KAKENHI-PROJECT-24500022
[Presentation] Computing the Nearest Real Univariate Polynomial with a Real Multiple Zero and Its Application
- Author(s)
  Hiroshi Sekigawa
- Organizer
  10th Asian Symposium on Computer Mathematics
- Place of Presentation
  中国科学院（北京、中国）
- Invited
- Data Source
  KAKENHI-PROJECT-24500022
[Presentation] Interval-symbol Method with Correct Zero Rewriting: Reducing Exact Computations to Obtain Exact Results
- Author(s)
  Kiyoshi Shirayanagi, Hiroshi Sekigawa
- Organizer
  18th Asian Technology Conference in Mathematics
- Place of Presentation
  インド工科大学（ムンバイ、インド）
- Data Source
  KAKENHI-PROJECT-24500022

1. SHIRAYANAGI Kioshi (80396176)

# of Collaborated Projects : 4results

# of Collaborated Products : 29results
2. Kawano Yasuhito (40396180)

# of Collaborated Projects : 3results

# of Collaborated Products : 15results
3. 山下茂 (30362833)

# of Collaborated Projects : 1results

# of Collaborated Products : 1results
4. 中西正樹 (40324967)

# of Collaborated Projects : 1results

# of Collaborated Products : 1results

SEKIGAWA Hiroshi 関川 浩

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代数問題に摂動が及ぼす影響とそれに対処する方法論の研究Principal InvestigatorOngoing

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格子問題を解く量子アルゴリズムの耐量子暗号と量子人工知能への応用Ongoing

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Study of the Influence of Perturbations on Algebraic ProblemsPrincipal Investigator

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Quantum Fourier Transform over Non-Abelian Groups and Its Application

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On the Study of Symbolic-Numeric Computation for Algebraic Problems with Empirical DataPrincipal Investigator

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On the Study of Highly Reliable Symbolic-Numeric Computation for Algebraic Problems with Empirical DataPrincipal Investigator

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Quantum Circuit Design using Matrix Decomposition and its application

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[Book] 応用数理ハンドブック2013

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[Journal Article] Robust algorithms for sparse interpolation of multivariate polynomials2018

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[Journal Article] The nearest polynomial to multiple given polynomials with a given zero in the real case2017

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[Journal Article] 2根を指定した場合の最近接多項式2017

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[Journal Article] An Algorithm for Symbolic-Numeric Sparse Interpolation of Multivariate Polynomials Whose Degree Bounds are Unknown2017

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[Journal Article] Quantum Fourier transform over symmetric groups --- improved result2016

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[Journal Article] 複数の多項式に対する最近多項式2015

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[Journal Article] A Sequence of Nearest Polynomials with Given Factors2014

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SEKIGAWA Hiroshi 関川浩