TSUCHIYA Takuya

ツチヤタクヤ | TSUCHIYA Takuya

Affiliation and department：
Job title： Associate Professor

Research field (2)： Applied mathematics and statistics , Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Research keywords (4)：和算 , 相対論 , 数値解析 , General Relativity

Research theme for competitive and other funds (13)：

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Papers (19)：

Takuya Tsuchiya, Makoto Nakamura. Quantitative evaluations of stability and convergence for solutions of semilinear Klein--Gordon equation. JSIAM Letters. 2025
Hidetomo Hoshino, Takuya Tsuchiya, Gen Yoneda. Stability analysis and improvement of the covariant BSSN formulation against the FLRW spacetime background. Classical and Quantum Gravity. 2024. 42. 015008-015008
Takuya Tsuchiya, Makoto Nakamura. Numerical Simulations of Semilinear Klein-Gordon Equation in the de Sitter Spacetime with Structure-Preserving Scheme. Trends in Mathematics: Analysis, Applications, and Computations Proceedings of the 13th ISAAC Congress, Ghent, Belgium, 2021. 2023. 549-562
Takuya Tsuchiya, Yuto Imai. On a solving of the question of Shinpouteisanki with numerical analysis. 2023. 42. 1-15
Study on Mathematician Kamiyama Yūsuke in Hachinohe: His Person and Writings. 2023. 53. 63-112

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MISC (6)：

Takuya Tsuchiya. Structure-preserving numerical calculation of wave equation for a vector field. 2025
Itinerant Mathematician “Yamaguchi Kazu” and Hachinohe. 2022. 52. 71-87
Takuya Tsuchiya, Gen Yoneda. Constraint-Preserving Scheme for Maxwell's Equations. 2016
Takuya Tsuchiya, Gen Yoneda. A new numerical scheme for Einstein equations with discrete variational derivative method. Proceedings of the 23rd Workshop on General Relativity and Gravitation in Japan. 2013. 882-882
Takuya Tsuchiya, Gen Yoneda, Hisa-aki Shinkai. Constraint propagation and constraint-damping in the C²-adjusted formulation. PROCEEDINGS OF THE TWENTY-FIRST WORKSHOP ON GENERAL RELATIVITY AND GRAVITATION IN JAPAN. 2011. 138-141

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Lectures and oral presentations (62)：

Proca方程式の構造保存型数値計算とその高精度化
(2025年度応用数学合同研究集会 2025)
On structure-preserving numerical calculation of wave equation for a vector field
(MSJ Autumn Meeting 2025 2025)
On structure-preserving numerical calculation of wave equation for a vector field
(JSIAM 2025 Annual Meeting 2025)
On convergence solutions of semi-linear Klein-Gordon equation in de Sitter spacetime
(MSJ Spring Meeting 2025 at Waseda University 2025)
de Sitter時空における半線型Klein-Gordon方程式の解の収束性と挙動について
(日本応用数理学会第21回研究部会連合発表会 2025)

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Professional career (1)：

Work history (11)：

2025/04 - 現在早稲田大学理工学術院非常勤講師
2023/04 - 現在 Meiji Gakuin University Faculty of Economics Department of Economics Associate Professor
2021/04 - 2023/03 Hachinohe Institute of Technology Center for Liberal Arts and Sciences Associate Professor
2019/04 - 2021/03 Hachinohe Institute of Technology Center for Liberal Arts and Sciences Lecturer
2017/04 - 2019/03 Keio University Faculty of Economics Lecturer

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Awards (2)：

2021/03 - Hachinohe Institute of Technology Reiwa 2nd Year Hachinohe Institute of Technology Research Award Research activities on applied mathematics centered on numerical analysis and statistics
2020/09 - 日本応用数理学会 2020年度論文賞(JSIAM Letters部門)

Association Membership(s) (2)：

THE JAPAN SOCIETY FOR INDUSTRIAL AND APPLIED MATHEMATICS , The Mathematical Society of Japan

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