Rchr
J-GLOBAL ID：200901073272217292
Update date: Feb. 01, 2024
Imai Hitoshi
イマイ ヒトシ | Imai Hitoshi
Affiliation and department：
Other affiliations (1)：
Homepage URL (1)：
http://se.doshisha.ac.jp/doc/labo/keisansuuri/keisansuuri.html
Research field (3)：
Computational science
, Applied mathematics and statistics
, Basic mathematics
Research keywords (5)：
金融工学
, 逆問題
, カオス
, 数値解析手法の開発
, 自由境界問題
Research theme for competitive and other funds (48)：
- 2021 - 2025 Effective use of multi-precision arithmetic on floating number system of digital computers aiming at numerical computations of differential equations with singulari or ill-posedness
- 2021 - 2024 Study of Mathematical Modeling and Analysis for Antidune in Rivers
- 2016 - 2021 Mathematical Sciences aiming at medical application of light propagation in biomedical tissues and related topics
- 2018 - 2021 Basic research on quality assurance of numerical simulations by visualizing the regularity of solutions of differential equations
- 2016 - 2019 Mathematical modeling for glucose concentration in blood based on inverse problem analysis of fractional differential equations
- 2013 - 2016 Fundamental study for high-resolution diffused optical tomography based on numerical analysis and applied analysis
- 2011 - 2015 Numerical analysis to support splitting and merging phenomena in interfacial dynamics
- 2011 - 2012 Estimation of modeling errors and their regularization in applied inverse problems
- 2010 - 2012 Breakthrough in numerical analysis and numerical computation related with infinitely-precision arithmetic
- 2009 - 2011 Mathematical analysis of the nonlinear systems arising in the industry.
- 2009 - 2010 高解像光トモグラフィの実現に向けての数学的基礎研究
- 2007 - 2009 Foundation of high accuracy computational methods on the multiple-precision computer environment and its applications to analysi of inverse problems
- 2006 - 2009 Studies on dynamical systems of nonlinear phenomena with energy dissipation and the theory of stability
- 2006 - 2007 爆発・成長現象のダイナミクスを明らかにする数値計算手法の開発と応用
- 2004 - 2007 The Frontier of Numerical Analysis for Dynamics of Interfaces and Developments in Sciences and Engineering
- 2004 - 2006 Establishment of New Numerical Methods for Applied Inverse and Ill-Posed Problems
- 2003 - 2006 Synthetic approach for the development of computer assisted analysis from the numerical verification methods
- 2003 - 2004 多倍長数値計算環境下での逆問題・非適切問題の数値解析手法の確立
- 2002 - 2004 Precision Improvement of Numerical Simulation Including Iteration Processes for Nonlinear Evolution Equations
- 2003 - 2003 応用数学の日本・イタリア研究集会のための企画調査研究
- 2003 - 2003 特定領域「応用逆問題解析」の申請へ向けての調査と国内調整
- 2002 - 2003 解が存在しない微分方程式の数値シミュレーション
- 2001 - 2003 Domain Decomposition Method for fee Boundary Problems and Its Applications
- 2001 - 2003 Development of Verified Methods for Numerical Simulations with Domain Decompsition Methods
- 2001 - 2003 Numerical and Mathematical Analysis for the reconstruction for solutions of inverse and ill-posed problems by regularization methods
- 2001 - 2003 Construction of Numerical Analysis for High-performance Large-Scale Computation
- 2001 - 2002 Synthetic approach for new developments of self-validating numerics
- 2001 - 2001 逆問題の解の再構成手法の確立
- 2000 - 2001 Studies on the treatment of Numerical Calculations Including Considerable Errors for Construction of Proper Mathematical Discrete models
- 1998 - 2000 Computation Mechanics and Domain Decompsition Methods
- 1998 - 2000 Coordinative research on numerical analysis of complex systems and optimal control
- 1998 - 2000 New Numerical Methods for Flow Problems and their Numerical Simulation
- 1998 - 2000 Research on infinite precision numerical simulation of partial differential equations
- 1997 - 1999 Numerical analysis of the chaotic bahavior of the free boundary
- 1997 - 1998 Mathematical Open Problems of the Navier-Stokes Equations
- 1995 - 1997 非線形複雑系の3次元数値計算
- 1996 - 1996 境界の運動方程式を陽に含まない自由境界問題の数値解析手法の開発
- 1995 - 1996 Studies on mathematical analysis and numerical computation of the Nevier-Stokes equations
- 1995 - 1995 知識工学を用いた効率的な偏微分方程式ソルバの開発
- 1994 - 1994 連立非線形方程式系の大域における数値解法とその応用
- 1994 - 1994 選点法を用いた高精度時間積分公式の開発と非定常微分方程式系への応用
- 1993 - 1993 常微分方程式系の初期値問題の数値解析的研究
- 1992 - 1993 Algorithms for Large Scale Linear Systems in the Numerical Simulation
- 1991 - 1991 大型線形計算のアルゴリズム
- 1990 - 1990 位相的に変化する領域を伴う自由境界問題の数値解法の開発
- 1989 - 1990 Numerical Analysis of Partial Differential Equations with Free Boundaries
- 1989 - 1989 領域の位相的変化を伴う圧縮-非圧縮2相流の数値解析
- 1987 - 1988 Research in Numerical Analysis of Free Boundary Problems
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Papers (82)：
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Hiroko Soutome, Naoyuki Ishimura, Hitoshi Imai. Efficient numerical computation of the integral equation for the ruin probability. 2023 27th International Computer Science and Engineering Conference (ICSEC). 2023. 37-41
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Hiroko Soutome, Naoyuki Ishimura, Hitoshi Imai. Efficient numerical computation of the ruin probability. Proceedings of the 54th ISCIE International Symposium on Stochastic Systems Theory and Its Applications Nara, Oct. 14-15, 2022. 2023. 35-40
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H. Soutome, N. Ishimura, H. Imai. Global in space numerical computation of the ruin probability. Advances in Mathematical Sciences and Applications. 2022. 31. 2. 397-406
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Mana Kato, Hiroshi Fujiwara, Hitoshi Imai. NUMERICAL REGULARITY MAP FOR FUNDAMENTAL ONE-DIMENSIONAL FRACTIONAL DIFFERENTIAL EQUATIONS WITH H\"{O}LDER CONTINUOUS SOLUTIONS. Advances in Mathematical Sciences and Applications. 2021. 30. 2. 499-506
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Hitoshi IMAI, Hideo SAKAGUCHI. Numerical Experiments on Regularity of a One-Variable Function by Using Chebyshev Collocation Derivative Matrices. THE HARRIS SCIENCE REVIEW OF DOSHISHA UNIVERSITY. 2021. 62. 2. 87-95
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MISC (122)：
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児玉祐軌, 松井孝真, 馬場誠太郎, 今井仁司. 野球の打撃フォームにおける角度解析への初歩的アプローチ - テイクバック時の肩の方位角 -. 同志社大学ハリス理化学研究報告. 2016. 57. 2. 75-80
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Enkhbayar Azjargal, Naoki Wada, Hitoshi Imai, Hideo Sakaguchi. Numerical Computation for Smoothness of the Solution of a One-Dimensional Hyperbolic Equation. The Sixth International Conference on Science and Mathematics Education in Developing Countries. 2014. 78-87
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今井 仁司, 坂口 秀雄, 磯 祐介. Tricomi方程式の数値計算について. 第59回理論応用力学講演会講演論文集. 2010. 357-358
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安部 公輔, 今井 仁司, 中村 正彰. スペクトル選点法による遅延微分方程式の高精度数値計算. 第59回理論応用力学講演会講演論文集. 2009. 355-356
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今井 仁司, 坂口 秀雄, 竹内 敏己. 円環領域における解の接続問題の数値計算について. 第58回理論応用力学講演会講演論文集. 2009. 481-482
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Education (4)：
- 1985 - 1988 The University of Tokyo The Graduate School of Engineering Department of Applied Physics
- 1983 - 1985 The University of Tokyo The Graduate School of Engineering Department of Applied Physics
- 1981 - 1983 The University of Tokyo The Faculty of Engineering Department of Applied Physics
- 1979 - 1981 The University of Tokyo College of Arts and Sciences
Professional career (1)：
- Doctor of Engineering (The University of Tokyo)
Work history (6)：
Committee career (2)：
- 2001 - 2005 日本数学会 応用数学分科会委員会委員、評議員、代議員、理論応用力学講演会運営委員
- 1991 - 1997 日本応用数理学会 論文誌編集委員会委員、学会誌編集委員会委員、評議員
Association Membership(s) (3)：
日本応用数理学会
, 日本数学会
, 情報処理学会
