Soga Kohei 曽我幸平

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SOGA Kohei 曽我幸平

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Researcher Number	80620559
Other IDs
Affiliation (Current)	2025: 慶應義塾大学, 理工学部(矢上), 准教授
Affiliation (based on the past Project Information) *help	2018 – 2023: 慶應義塾大学, 理工学部(矢上), 准教授 2018: 慶應義塾大学, 理工学部(矢上), 専任講師 2016 – 2017: 慶應義塾大学, 理工学部(矢上), 講師 2015: 慶應義塾大学, 理工学部, 講師
Review Section/Research Field	Principal Investigator Basic Section 12020:Mathematical analysis-related / Foundations of mathematics/Applied mathematics
Keywords	Principal Investigator Navier-Stokes方程式 / 粘性解 / Hamilton-Jacobi方程式 / 弱解 / 線形輸送方程式 / 数値解析 / 流体力学 / 有限差分法 / 差分法 / Leray-Hopfの弱解 … More / 弱KAM理論 / Hamilton力学系 / KAM理論 / 非一様非圧縮性流体 / 等高面法 / 二相流体 / 計算機流体力学 / 力学系 / 応用解析 / 安定性解析・分岐解析 / 時間周期解 / 非圧縮性Navier-Stokes方程式 / 二相問題 / 特性曲線の方法 / level-set method / 最小作用の原理 / Kazhikhov-Smagulovモデル / 非圧縮性粘性流体 / Tonelliの変分法 / Lagrange力学系 / modeling / 適切性 / 二相自由境界問題 / discount近似 / 誤差評価 / 収束証明 / discount 近似 / 最大正則性 Less

流体力学における数値解法の数学解析と解析力学における古典KAM理論の数学解析Principal Investigator
- Principal Investigator
  
  曽我幸平
- Project Period (FY)
  2022 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 12020:Mathematical analysis-related
- Research Institution
  Keio University
Reserach on dynamical systems and fluid mechanics in terms of applied analysisPrincipal Investigator
- Principal Investigator
  
  Soga Kohei
- Project Period (FY)
  2018 – 2023
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 12020:Mathematical analysis-related
- Research Institution
  Keio University
Applied analysis for nonlinear problemsPrincipal Investigator
- Principal Investigator
  
  SOGA Kohei
- Project Period (FY)
  2015 – 2018
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Foundations of mathematics/Applied mathematics
- Research Institution
  Keio University

All 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015

All Journal Article Presentation

[Journal Article] Existence of global weak solutions of inhomogeneous incompressible Navier-Stokes system with mass diffusion2024
- Author(s)
  Kacedan Eliott, Soga Kohei
- Journal Title
  
  Zeitschrift fuer angewandte Mathematik und Physik
  
  Volume: 75 Issue: 2
- DOI
  10.1007/s00033-024-02209-8
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K03391, KAKENHI-PROJECT-18K13443
[Journal Article] A Remark on Tonelli’s Calculus of Variations2023
- Author(s)
  Soga Kohei
- Journal Title
  
  Russian Journal of Nonlinear Dynamics
  
  Volume: 19 Issue: 2 Pages: 239-248
- DOI
  10.20537/nd230501
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K03391, KAKENHI-PROJECT-18K13443
[Journal Article] More on Convergence of Chorin’s Projection Method for Incompressible Navier?Stokes Equations2022
- Author(s)
  Maeda Masataka、Soga Kohei
- Journal Title
  
  Journal of Mathematical Fluid Mechanics
  
  Volume: 24 Issue: 2 Pages: 1-31
- DOI
  10.1007/s00021-021-00652-5
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13443
[Journal Article] Mathematical Analysis of Finite Difference Method Applied to Hamilton-Jacobi Equations: A Stochastic and Variational Approach2022
- Author(s)
  曽我幸平
- Journal Title
  
  Bulletin of the Japan Society for Industrial and Applied Mathematics
  
  Volume: 32 Issue: 3 Pages: 127-138
- DOI
  10.11540/bjsiam.32.3_127
- ISSN
  2432-1982
- Year and Date
  2022-09-22
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K13443
[Journal Article] Weak KAM theory for action minimizing random walks2021
- Author(s)
  Soga Kohei
- Journal Title
  
  Calculus of Variations and Partial Differential Equations
  
  Volume: 60 Issue: 5 Pages: 1-49
- DOI
  10.1007/s00526-021-02025-2
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13443
[Journal Article] Stochastic and variational approach to finite difference approximation of Hamilton-Jacobi equations2020
- Author(s)
  Kohei Soga
- Journal Title
  
  Mathematics of Computation
  
  Volume: 89 Issue: 323 Pages: 1135-1159
- DOI
  10.1090/mcom/3437
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13443
[Journal Article] On convergence of Chorin’s projection method to a Leray-Hopf weak solution2020
- Author(s)
  Hidesato Kuroki, Kohei Soga
- Journal Title
  
  Numerische Mathematik
  
  Volume: 146 Issue: 2 Pages: 401-433
- DOI
  10.1007/s00211-020-01144-w
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13443
[Journal Article] Weak KAM theory for discount Hamilton-Jacobi equations and its application2018
- Author(s)
  H. Mitake, K. Soga
- Journal Title
  
  Calc. Var. Partial Differential Equations
  
  Volume: accepted Issue: 3
- DOI
  10.1007/s00526-018-1359-1
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17574, KAKENHI-PROJECT-16H03948, KAKENHI-PROJECT-15K21369
[Journal Article] On some two phase problem for compressible and compressible viscous fluid flow separated by sharp interface2016
- Author(s)
  Takayuki Kubo, Yoshihiro Shibata, Kohei Soga
- Journal Title
  
  Discrete and Continuous Dynamical Systems - Series A (DCDS-A)
  
  Volume: Volume 36, Issue 7 Issue: 7 Pages: 3741-3774
- DOI
  10.3934/dcds.2016.36.3741
- NAID
  120007135602
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15K21369, KAKENHI-PROJECT-24224004
[Presentation] Mathematical analysis of modified level-set equations2024
- Author(s)
  Kohei Soga
- Organizer
  94th Annual Meeting of the International Association of Applied Mathematics and Mechanics
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13443
[Presentation] Mathematical analysis of modified level-set equations2024
- Author(s)
  Kohe Soga
- Organizer
  94th Annual Meeting of the International Association of Applied Mathematics and Mechanics
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03391
[Presentation] Weak KAM theory for discretized Hamilton-Jacobi equations2019
- Author(s)
  Kohei Soga
- Organizer
  New trends in Hamilton-Jacobi: PDE, Control, Dynamical Systems and Geometry
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K13443
[Presentation] A Finite Difference Method in Hamilton-Jacobi Equations and Weak KAM Theory2018
- Author(s)
  Kohei Soga
- Organizer
  12th AIMS Conference in Taipei
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K21369
[Presentation] On convergence of Chorin’s projection method to a Leray-Hopf weak solution -Bounded Lipschitz domain case-2018
- Author(s)
  Kohei Soga
- Organizer
  Conference on Mathematical Fluid Dynamics Bad Boll
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K21369
[Presentation] On convergence of Chorin's projection method to a Leray-Hopf weak solution2018
- Author(s)
  曽我幸平
- Organizer
  JSPS-DFG Japanese-German Graduate Externship "The 15th Japanese-German International Workshop on Mathematical Fluid Dynamics"
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K21369
[Presentation] ハミルトン・ヤコビ方程式のディスカウント近似に対する選択問題 : 収束率2017
- Author(s)
  曽我幸平 (発表者),　三竹大寿
- Organizer
  日本数学会2017年度年会
- Place of Presentation
  首都大学東京　（東京都　八王子市）
- Year and Date
  2017-03-25
- Data Source
  KAKENHI-PROJECT-15K21369
[Presentation] エントロピー解・粘性解の選択問題2017
- Author(s)
  曽我幸平
- Organizer
  「数学と現象：Mathematics and Phenomena in Miyazaki 2017
- Invited
- Data Source
  KAKENHI-PROJECT-15K21369
[Presentation] 弱KAM理論の応用 1 - HJ方程式の放物型近似・差分近似・discount近似と対応する力学系2016
- Author(s)
  曽我幸平
- Organizer
  RIMS研究集会: 力学系とその関連分野の連携探索
- Place of Presentation
  京都大学　（京都府　京都市）
- Year and Date
  2016-06-08
- Invited
- Data Source
  KAKENHI-PROJECT-15K21369
[Presentation] 古典KAM理論・弱KAM理論入門2016
- Author(s)
  曽我幸平
- Organizer
  RIMS研究集会: 力学系とその関連分野の連携探索
- Place of Presentation
  京都大学　（京都府　京都市）
- Year and Date
  2016-06-07
- Invited
- Data Source
  KAKENHI-PROJECT-15K21369
[Presentation] Local well-posedness and global well-posedness of two-phase flows: compressible-compressible case2015
- Author(s)
  Kohei Soga
- Organizer
  RIMS 研究集会「非圧縮性粘性流体の数理解析」
- Place of Presentation
  京都大学数理解析研究所（京都府　京都市）
- Year and Date
  2015-11-16
- Data Source
  KAKENHI-PROJECT-15K21369

1. MITAKE Hiroyoshi

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Soga Kohei 曽我 幸平

SOGA Kohei 曽我 幸平

Research Projects

Research Products

Co-Researchers

流体力学における数値解法の数学解析と解析力学における古典KAM理論の数学解析Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Reserach on dynamical systems and fluid mechanics in terms of applied analysisPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Applied analysis for nonlinear problemsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Existence of global weak solutions of inhomogeneous incompressible Navier-Stokes system with mass diffusion2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A Remark on Tonelli’s Calculus of Variations2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] More on Convergence of Chorin’s Projection Method for Incompressible Navier?Stokes Equations2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Mathematical Analysis of Finite Difference Method Applied to Hamilton-Jacobi Equations: A Stochastic and Variational Approach2022

Author(s)

Journal Title

DOI

ISSN

Year and Date

Language

Data Source

[Journal Article] Weak KAM theory for action minimizing random walks2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Stochastic and variational approach to finite difference approximation of Hamilton-Jacobi equations2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] On convergence of Chorin’s projection method to a Leray-Hopf weak solution2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Weak KAM theory for discount Hamilton-Jacobi equations and its application2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] On some two phase problem for compressible and compressible viscous fluid flow separated by sharp interface2016

Author(s)

Journal Title

DOI

NAID

Data Source

[Presentation] Mathematical analysis of modified level-set equations2024

Author(s)

Organizer

Data Source

[Presentation] Mathematical analysis of modified level-set equations2024

Author(s)

Organizer

Data Source

Soga Kohei 曽我幸平

SOGA Kohei 曽我幸平