Sekigawa Hiroshi 関川浩

… Alternative Names

SEKIGAWA Hiroshi 関川浩

Less

Researcher Number	00396178
Other IDs
Affiliation (Current)	2025: 東京理科大学, 理学部第一部応用数学科, 教授
Affiliation (based on the past Project Information) *help	2017 – 2023: 東京理科大学, 理学部第一部応用数学科, 教授 2016: 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 Basic Section 60010:Theory of informatics-related / Fundamental theory of informatics / Theory of informatics Except Principal Investigator Theory of informatics / Fundamental theory of informatics
Keywords	Principal Investigator 数値数式融合計算 / 多項式 / 安定化理論 / 誤差 / 代数方程式 / 摂動 / 近似 / 安定性 / グレブナ基底 / 凸包構成 … More / 根 / 零点 / 連立代数方程式 / 方程式 / 乱択アルゴリズム / 計算幾何 / 計算機代数 / ボロノイ図 / 凸結合 / メビウス変換 / 多項式の合成 / 近似アルゴリズム / 一般逆行列 / 有理標準形 / 最短ベクトル / 行列 / 整除性 … More Except Principal Investigator 格子暗号 / 量子アルゴリズム / 量子コンピュータ / LWE暗号 / 量子ニューラルネットワーク / 解読 / 耐量子暗号 / 深層学習 / ニューラルネットワーク / 量子人工知能 / 対称群 / 格子問題 / 隠れ部分群問題 / フーリエ変換 / 表現論 / 非可換群 / ポスト量子暗号 / 量子暗号 / 量子フーリエ変換 / Cosine-Sine分解 / 多準位量子ゲート / 複素アダマール行列 / Mutually Unbiased Basis / 量子回路の等価性判定 / 離散対数問題 / 量子プッシュダウンオートマトン / SATアルゴリズム / Steane符号 / 隣接互換グラフ / Linear Nearest Neighbor / パターンマッチング / 行列分解 / 量子回路設計 / 量子計算理論 Less

On the Study of Symbolic-Numeric Computation Using Randomized and/or Approximation AlgorithmsPrincipal Investigator
- Principal Investigator
  
  Sekigawa Hiroshi
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60010:Theory of informatics-related
- Research Institution
  Tokyo University of Science
Research on the influence of perturbation to algebraic problems and coping methodology for themPrincipal Investigator
- Principal Investigator
  
  Sekigawa Hirosi
- 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
Application of Quantum Algorithms for Lattice Problems to Post-Quantum Cryptography and Quantum Artificial Intelligence
- Principal Investigator
  
  Kawano Yasuhito
- 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
  
  Sekigawa Hiroshi
- 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

[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] 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2024
- Author(s)
  関川浩
- Journal Title
  
  数式処理
  
  Volume: 30 Pages: 53-56
- Data Source
  KAKENHI-PROJECT-21K11760
[Journal Article] 合成で表現可能な最近接多項式2023
- Author(s)
  関川浩
- Journal Title
  
  数式処理
  
  Volume: 29 Pages: 37-40
- Data Source
  KAKENHI-PROJECT-21K11760
[Journal Article] マンハッタン距離ボロノイ図からの母点探索2023
- Author(s)
  山中悠輔、武田渉、関川浩
- Journal Title
  
  京都大学数理解析研究所講究録
  
  Volume: 2255 Pages: 174-183
- Open Access
- Data Source
  KAKENHI-PROJECT-21K11760
[Journal Article] An Approximation Algorithm for the Nearest Decomposable Polynomial in the Hamming Distance2023
- Author(s)
  Hiroshi Sekigawa
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume: 57 Issue: 3 Pages: 119-122
- DOI
  10.1145/3637529.3637532
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K11760
[Journal Article] Robustな疎多項式補間アルゴリズム2021
- Author(s)
  近藤和希、関川浩
- Journal Title
  
  数式処理
  
  Volume: 27 Pages: 35-38
- Data Source
  KAKENHI-PROJECT-18K11172
[Journal Article] メビウス変換の凸結合2021
- Author(s)
  若菜魁、関川浩
- Journal Title
  
  数式処理
  
  Volume: 27 Pages: 45-48
- Data Source
  KAKENHI-PROJECT-21K11760
[Journal Article] On parametric border bases2020
- Author(s)
  Yosuke Sato, Hiroshi Sekigawa, Ryoya Fukasaku, Katsusuke Nabeshima
- Journal Title
  
  Lecture Notes in Computer Science
  
  Volume: 11989 Pages: 10-15
- DOI
  10.1007/978-3-030-43120-4_2
- ISBN
  9783030431198, 9783030431204
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K03214, KAKENHI-PROJECT-18K03426, KAKENHI-PROJECT-18K11172, KAKENHI-PROJECT-17K12642
[Journal Article] 疎多項式補間に関するrobustな計算手法及びアルゴリズム2020
- Author(s)
  近藤和希、関川浩
- Journal Title
  
  京都大学数理解析研究所講究録
  
  Volume: 2159 Pages: 143-148
- NAID
  40022335059
- Open Access
- Data Source
  KAKENHI-PROJECT-18K11172
[Journal Article] 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 II2019
- Author(s)
  佐藤洋祐、深作亮也、関川浩
- Journal Title
  
  数式処理
  
  Volume: 25 Pages: 87-89
- Data Source
  KAKENHI-PROJECT-18K11172
[Journal Article] 複数の点での値が指定された場合の最近接多項式2019
- Author(s)
  若月雄麻、関川浩
- Journal Title
  
  数式処理
  
  Volume: 25 Pages: 67-70
- Data Source
  KAKENHI-PROJECT-18K11172
[Journal Article] 指定された領域に零点を持つ最近接多項式について2019
- Author(s)
  若月雄麻、関川浩
- Journal Title
  
  京都大学数理解析研究所講究録
  
  Volume: 2138 Pages: 81-86
- NAID
  120006888175
- Open Access
- Data Source
  KAKENHI-PROJECT-18K11172
[Journal Article] Robustな疎多項式補間2019
- Author(s)
  近藤和希、関川浩
- Journal Title
  
  京都大学数理解析研究所講究録
  
  Volume: 2138 Pages: 73-80
- NAID
  120006888174
- Open Access
- Data Source
  KAKENHI-PROJECT-18K11172
[Journal Article] 中国剰余定理を用いたsparse interpolation2019
- Author(s)
  近藤和希、関川浩
- Journal Title
  
  数式処理
  
  Volume: 25 Pages: 22-25
- Data Source
  KAKENHI-PROJECT-18K11172
[Journal Article] Robust computation methods for sparse interpolation of multivariate polynomials2019
- Author(s)
  Kondo Kazuki、Sekigawa Hiroshi
- Journal Title
  
  ACM Communications in Computer Algebra
  
  Volume: 53 Issue: 3 Pages: 130-133
- DOI
  10.1145/3377006.3377018
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K11172
[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] On Continuity of the Roots of a Parametric Zero Dimensional Multivariate Polynomial Ideal2018
- Author(s)
  Sato Yosuke、Fukasaku Ryoya、Sekigawa Hiroshi
- Journal Title
  
  Proceedings of the 2018 ACM on International Symposium on Symbolic and Algebraic Computation
  
  Volume: 2018 Pages: 359-365
- DOI
  10.1145/3208976.3209004
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K03426, KAKENHI-PROJECT-18K11172, KAKENHI-PROJECT-17K12642
[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
- Acknowledgement Compliant / Open Access
- 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
- Peer Reviewed / Acknowledgement Compliant
- 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] 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] 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] 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) Issue: 3/4 Pages: 127-129
- DOI
  10.1145/2733693.2733708
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25330021
[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] 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
- NAID
  10031169524
- 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)
  Hiroshi Sekigawa
- Journal Title
  
  Journal of Symbolic Computation
  
  Volume: 46 Issue: 12 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] 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] 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)
  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] 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] 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
[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] 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] 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] 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] 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
- NAID
  110007123964
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21500026
[Patent] 判定装置、計算装置、および学習システム2019
- Inventor(s)
  河野泰人、関川浩
- Industrial Property Rights Holder
  NTT, 東京理科大学
- Industrial Property Rights Type
  特許
- Industrial Property Number
  2019-047931
- Filing Date
  2019
- Data Source
  KAKENHI-PROJECT-17K00027
[Patent] TRANSFORMATION APPARATUS, DECISION APPARATUS, QUANTUM COMPUTATION APPARATUS AND QUANTUM MACHINE LEARNING SYSTEM2018
- Inventor(s)
  Y. Kawano, H. Sekigawa
- Industrial Property Rights Holder
  NTT
- Industrial Property Rights Type
  特許
- Filing Date
  2018
- Overseas
- Data Source
  KAKENHI-PROJECT-17K00027
[Patent] 特許権2017
- Inventor(s)
  河野泰人, 関川浩
- Industrial Property Rights Holder
  河野泰人, 関川浩
- Industrial Property Rights Type
  特許
- Industrial Property Number
  2017-205011
- Filing Date
  2017
- Data Source
  KAKENHI-PROJECT-17K00027
[Patent] 連立代数方程式の係数に対する許容誤差限界評価装置、方法、プログラム2010
- Inventor(s)
  関川浩
- Industrial Property Rights Holder
  日本電信電話株式会社
- Industrial Property Number
  2010-059763
- Filing Date
  2010-03-16
- Data Source
  KAKENHI-PROJECT-21500026
[Patent] 最近多項式算出装置、方法及びプログラム2009
- Inventor(s)
  関川浩
- Industrial Property Rights Holder
  日本電信電話株式会社
- Industrial Property Number
  2009-277454
- Filing Date
  2009-12-07
- Data Source
  KAKENHI-PROJECT-21500026
[Patent] 行列分解装置、行列分解方法及びプログラム2009
- Inventor(s)
  河野泰人、関川浩
- Industrial Property Rights Holder
  NTT
- Industrial Property Number
  2009-243481
- Filing Date
  2009-10-22
- Data Source
  KAKENHI-PROJECT-20500024
[Patent] 最近多項式算出装置、方法びプログラム2009
- Inventor(s)
  関川浩
- Industrial Property Rights Holder
  日本電信電話株式会社
- Industrial Property Number
  2009-277454
- Filing Date
  2009-12-07
- Data Source
  KAKENHI-PROJECT-21500026
[Patent] 行列分解装置,行列分解方法及びプログラム2009
- Inventor(s)
  河野泰人, 関川浩
- Industrial Property Rights Holder
  NTT
- Industrial Property Number
  2009-024348
- Filing Date
  2009-10-22
- Data Source
  KAKENHI-PROJECT-20500024
[Presentation] 数値数式融合計算2024
- Author(s)
  関川浩
- Organizer
  日本数学会2024年度年会
- Invited
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] 二変数多項式の近似decompositionとその応用2024
- Author(s)
  徳田陸成、武田渉、関川浩
- Organizer
  Risa/Asir Conference 2024
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] 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2023
- Author(s)
  関川浩
- Organizer
  第32回日本数式処理学会大会
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] 因数分解を利用した多変数多項式のdecomposition2023
- Author(s)
  徳田陸成、武田渉、関川浩
- Organizer
  RIMS 共同研究（公開型）Computer Algebra―Foundations and Applications
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] 多項式の合成による表現2023
- Author(s)
  関川浩
- Organizer
  Risa/Asir Conference 2023
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] An approximation algorithm for the nearest decomposable polynomial in the Hamming distance2023
- Author(s)
  Hiroshi Sekigawa
- Organizer
  48th International Symposium on Symbolic and Algebraic Computation (ISSAC2023)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] マンハッタン距離ボロノイ図からの母点探索2022
- Author(s)
  山中悠輔、武田渉、関川浩
- Organizer
  RIMS 共同研究（公開型）Computer Algebra―Foundations and Applications
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] マンハッタン距離ボロノイ図の母点探索2022
- Author(s)
  山中悠輔、武田渉、関川浩
- Organizer
  日本応用数理学会2022年度年会
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] 合成で表現可能な最近接多項式2022
- Author(s)
  関川浩
- Organizer
  第31回日本数式処理学会大会
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] 有限体上の多項式のdecomposition2022
- Author(s)
  関川浩
- Organizer
  Risa/Asir Conference 2022
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] The nearest function represented by a convex combination of given functions with constraints2021
- Author(s)
  Hiroshi Sekigawa
- Organizer
  26th Conference on Applications of Computer Algebra (ACA2021)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K11760
[Presentation] メビウス変換の凸結合2020
- Author(s)
  若菜魁、関川浩
- Organizer
  第29回日本数式処理学会大会
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] On Attacking the Next-Generation Public-Key Cryptography by Using LASOLV2020
- Author(s)
  Yasuhito Kawano, Hiroshi Sekigawa
- Organizer
  FQST 2020
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K00027
[Presentation] On Parametric Border Bases2019
- Author(s)
  Yosuke Sato, Hiroshi Sekigawa, Ryoya Fukasaku, Katsusuke Nabeshima
- Organizer
  Mathematical Aspects of Computer and Information Sciences 2019 (MACIS2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] パラメトリックな代数方程式の根の連続性とBorder Basisとの関係2019
- Author(s)
  佐藤洋祐、関川浩、深作亮也、鍋島克輔
- Organizer
  第28回日本数式処理学会大会
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] LASOLVを用いた次世代公開鍵暗号の攻撃方法について2019
- Author(s)
  河野泰人、関川浩
- Organizer
  量子情報技術研究会（QIT４１）
- Data Source
  KAKENHI-PROJECT-17K00027
[Presentation] パラメトリックな連立代数方程式の根の連続性とBorderBasisとの関係II2019
- Author(s)
  佐藤洋祐、関川浩、深作亮也、鍋島克輔
- Organizer
  日本数式処理学会2019年度基礎理論分科会＆システム分科会合同研究会
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] Robustな疎多項式補間アルゴリズム2019
- Author(s)
  近藤和希、関川浩
- Organizer
  第28回日本数式処理学会大会
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] Computer Simulation of Quantum Algorithms for Lattice Problems2019
- Author(s)
  Yasuhito Kawano, Hiroshi Sekigawa
- Organizer
  Coherent Network Computing (CNC 2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K00027
[Presentation] Robust computation methods for sparse interpolation of multivariate polynomials2019
- Author(s)
  Kazuki Kondo, Hiroshi Sekigawa
- Organizer
  44th International Symposium on Symbolic and Algebraic Computation (ISSAC2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] 疎多項式補間に関するrobustな計算手法及びアルゴリズム2019
- Author(s)
  近藤和希、関川浩
- Organizer
  RIMS共同研究（公開型）Computer Algebra―Theory and its Applications
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] 計算誤差を抑える疎多項式補間アルゴリズム2019
- Author(s)
  近藤和希、関川浩
- Organizer
  Risa/Asir Conference 2019
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] A canonical representation of continuity of the roots of a parametric zero dimensional multi-variate polynomial ideal2018
- Author(s)
  Yosuke Sato, Ryoya Fukasaku and Hiroshi Sekigawa
- Organizer
  24th Conference on Applications of Computer Algebra (ACA2018)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11172
[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 II2018
- Author(s)
  佐藤洋祐、深作亮也、関川浩
- Organizer
  第27回日本数式処理学会大会
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] 教師あり深層学習のための量子アルゴリズムについて2018
- Author(s)
  河野　泰人, 関川浩
- Organizer
  第39回量子情報技術研究会
- Data Source
  KAKENHI-PROJECT-17K00027
[Presentation] Robustな疎多項式補間2018
- Author(s)
  近藤和希、関川浩
- Organizer
  RIMS共同研究（公開型）Computer Algebra―Theory and its Applications
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] 複数の点で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
  第27回日本数式処理学会大会
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] On Continuity of the Roots of a Parametric Zero Dimensional Multivariate Polynomial Ideal2018
- Author(s)
  Yosuke Sato, Ryoya Fukasaku and Hiroshi Sekigawa
- Organizer
  43rd International Symposium on Symbolic and Algebraic Computation (ISSAC2018)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11172
[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] 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] 中国剰余定理を用いた sparse interpolation2018
- Author(s)
  近藤和希、関川浩
- Organizer
  日本数式処理学会2018年度基礎理論分科会＆システム分科会合同研究会
- Data Source
  KAKENHI-PROJECT-18K11172
[Presentation] 指定された領域に零点を持つ最近接多項式について2018
- 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-18K11172
[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] 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] 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] 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] 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] 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] 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
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K00025
[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] 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] 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] 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] 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 2012
- Place of Presentation
  神戸大学(神戸市)
- Year and Date
  2012-03-20
- 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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
[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] 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] 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] 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] 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] 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

1. SHIRAYANAGI Kioshi (80396176)

# of Collaborated Projects: 4 results

# of Collaborated Products: 26 results
2. Kawano Yasuhito (40396180)

# of Collaborated Projects: 3 results

# of Collaborated Products: 19 results
3. 山下茂 (30362833)

# of Collaborated Projects: 1 results

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

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
5. NABESHIMA Katsusuke

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
6. SATO Yosuke

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Sekigawa Hiroshi 関川 浩

SEKIGAWA Hiroshi 関川 浩

Research Projects

Research Products

Co-Researchers

On the Study of Symbolic-Numeric Computation Using Randomized and/or Approximation AlgorithmsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Research on the influence of perturbation to algebraic problems and coping methodology for themPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Application of Quantum Algorithms for Lattice Problems to Post-Quantum Cryptography and Quantum Artificial Intelligence

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Study of the Influence of Perturbations on Algebraic ProblemsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Quantum Fourier Transform over Non-Abelian Groups and Its Application

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

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

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

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

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Quantum Circuit Design using Matrix Decomposition and its application

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Book] 応用数理ハンドブック2013

Author(s)

Total Pages

Publisher

Data Source

[Journal Article] 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2024

Author(s)

Journal Title

Data Source

[Journal Article] 合成で表現可能な最近接多項式2023

Author(s)

Journal Title

Data Source

[Journal Article] マンハッタン距離ボロノイ図からの母点探索2023

Author(s)

Journal Title

Data Source

[Journal Article] An Approximation Algorithm for the Nearest Decomposable Polynomial in the Hamming Distance2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Robustな疎多項式補間アルゴリズム2021

Author(s)

Journal Title

Data Source

[Journal Article] メビウス変換の凸結合2021

Sekigawa Hiroshi 関川浩

SEKIGAWA Hiroshi 関川浩