Oikawa Issei 及川一誠

Researcher Number	10637466
Other IDs
Affiliation (Current)	2025: 筑波大学, 数理物質系, 准教授
Affiliation (based on the past Project Information) *help	2020 – 2025: 筑波大学, 数理物質系, 准教授 2018: 早稲田大学, 理工学術院, 次席研究員(研究院講師) 2016 – 2017: 早稲田大学, 理工学術院, 次席研究員(研究院助教) 2016: 早稲田大学, 理工学術院, 研究員 2014 – 2015: 早稲田大学, 理工学術院, 助教
Review Section/Research Field	Principal Investigator Foundations of mathematics/Applied mathematics / Basic Section 12040:Applied mathematics and statistics-related / 0201:Algebra, geometry, analysis, applied mathematics,and related fields Except Principal Investigator Medium-sized Section 12:Analysis, applied mathematics, and related fields / Foundations of mathematics/Applied mathematics
Keywords	Principal Investigator 数値解析 / HDG法 / 不連続Galerkin法 / 有限要素法 / 重調和方程式 / ハイブリッド法 / 不連続ガレルキン法 Except Principal Investigator 有限要素法 / 有限要素外積解析 / Discontinuous … More / 数値シミュレーション / 離散外微分形式 / 平均場ゲーム方程式 / 時空間変分法 / 要素形状 / 有限体積法 / 不連続ガレルキン法 / 誤差評価 / 要素分割 Less

HDG法における反復型領域分割法の開発Principal Investigator
- Principal Investigator
  
  及川一誠
- Project Period (FY)
  2022 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 12040:Applied mathematics and statistics-related
- Research Institution
  University of Tsukuba
New development of numerical analysis based on the space-time variational method
- Principal Investigator
  
  齊藤宣一
- Project Period (FY)
  2021 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 12:Analysis, applied mathematics, and related fields
- Research Institution
  The University of Tokyo
Superconvergent HDG methods for the biharmonic equationPrincipal Investigator
- Principal Investigator
  
  Oikawa Issei
- Project Period (FY)
  2020 – 2021
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Review Section
  
  0201:Algebra, geometry, analysis, applied mathematics,and related fields
- Research Institution
  University of Tsukuba
ハイブリッド型不連続Galerkin法の新展開Principal Investigator
- Principal Investigator
  
  及川一誠
- Project Period (FY)
  2017 – 2018
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Foundations of mathematics/Applied mathematics
- Research Institution
  Waseda University
What is ``good" shape of elements in FEM
- Principal Investigator
  
  Saito Norikazu
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Foundations of mathematics/Applied mathematics
- Research Institution
  The University of Tokyo
Development of the hybridized discontinuous method and its mathematical analysisPrincipal Investigator
- Principal Investigator
  
  Oikawa Issei
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Foundations of mathematics/Applied mathematics
- Research Institution
  Waseda University

All 2023 2021 2019 2018 2017 2016 2015 Other

All Journal Article Presentation

[Journal Article] An analysis on the penalty and Nitsche's methods for the Stokes?Darcy system with a curved interface2021
- Author(s)
  Zhou Guanyu、Kashiwabara Takahito、Oikawa Issei、Chung Eric、Shiue Ming-Cheng
- Journal Title
  
  Applied Numerical Mathematics
  
  Volume: 165 Pages: 83-118
- DOI
  10.1016/j.apnum.2021.02.006
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14357, KAKENHI-PROJECT-20K22300, KAKENHI-PROJECT-21H04431
[Journal Article] Penalty method with Crouzeix-Raviart finite element approximation for the Stokes equations under the slip boundary condition2019
- Author(s)
  Takahito Kashiwabara, Issei Oikawa, and Guanyu Zhou
- Journal Title
  
  ESAIM: Mathematical Modelling and Numerical Analysis
  
  Volume: 印刷中 Issue: 3 Pages: 869-891
- DOI
  10.1051/m2an/2019008
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14230, KAKENHI-PROJECT-18K13460, KAKENHI-PROJECT-17K14243
[Journal Article] An HDG Method with Orthogonal Projections in Facet Integrals2018
- Author(s)
  Oikawa Issei
- Journal Title
  
  Journal of Scientific Computing
  
  Volume: 印刷中 Issue: 2 Pages: 1044-1054
- DOI
  10.1007/s10915-018-0648-3
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14243
[Journal Article] HDG methods for second-order elliptic problems2017
- Author(s)
  Issei Oikawa
- Journal Title
  
  RIMS Kokyuroku
  
  Volume: 印刷中
- Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26800089
[Journal Article] A penalty method for the time-dependent Stokes problem with the slip boundary condition and its finite element application2017
- Author(s)
  Guanyu Zhou, Takahito Kashiwabara and Issei Oikawa
- Journal Title
  
  RIMS Kokyuroku
  
  Volume: 印刷中
- Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26800089
[Journal Article] A penalty method for the time-dependent Stokes problem with the slip boundary condition and its finite element approximation2017
- Author(s)
  Zhou Guanyu、Kashiwabara Takahito、Oikawa Issei
- Journal Title
  
  Applications of Mathematics
  
  Volume: 62 Issue: 4 Pages: 377-403
- DOI
  10.21136/am.2017.0328-16
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14230, KAKENHI-PROJECT-17K14243, KAKENHI-PROJECT-15H03635
[Journal Article] Penalty method with P1/P1 finite element approximation for the Stokes equations under the slip boundary condition2016
- Author(s)
  Takahito Kashiwabara, Issei Oikawa and Guanyu Zhou
- Journal Title
  
  Numerische Mathematik
  
  Volume: -- Issue: 4 Pages: 705-740
- DOI
  10.1007/s00211-016-0790-5
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26800089, KAKENHI-PROJECT-15H03635
[Journal Article] Analysis of a Reduced-Order HDG Method for the Stokes Equations2015
- Author(s)
  Issei Oikawa
- Journal Title
  
  Journal of Scientific Computing
  
  Volume: -- Issue: 2 Pages: 475-492
- DOI
  10.1007/s10915-015-0090-8
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26800089
[Journal Article] A hybridized discontinuous Galerkin method with reduced stabilization2015
- Author(s)
  Issei Oikawa
- Journal Title
  
  Journal of Scientific Computing
  
  Volume: -- Issue: 1 Pages: 327-340
- DOI
  10.1007/s10915-014-9962-6
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26800089, KAKENHI-PROJECT-24224004
[Journal Article] Penalty Method for the Stationary Navier–Stokes Problems Under the Slip Boundary Condition2015
- Author(s)
  Guanyu Zhou, Takahito Kashiwabara and Issei Oikawa
- Journal Title
  
  Journal of Scientific Computing
  
  Volume: -- Issue: 1 Pages: 339-374
- DOI
  10.1007/s10915-015-0142-0
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26800089, KAKENHI-PROJECT-15H03635
[Presentation] A non-overlapping Schwarz algorithm for the HDG method2023
- Author(s)
  Issei OIKAWA
- Organizer
  ICIAM2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03432
[Presentation] 長方形分割におけるあるHDG法の超収束について2019
- Author(s)
  及川一誠
- Organizer
  日本数学会研究部会連合発表会
- Data Source
  KAKENHI-PROJECT-17K14243
[Presentation] HDG法の超収束について2018
- Author(s)
  及川一誠
- Organizer
  ワークショップ「不連続Galerkin有限要素法の数学理論とその周辺」
- Invited
- Data Source
  KAKENHI-PROJECT-17K14243
[Presentation] 超収束するHDG法の開発2018
- Author(s)
  及川一誠
- Organizer
  日本応用数理学会年度年会
- Data Source
  KAKENHI-PROJECT-17K14243
[Presentation] Remarks on some general convergence theorem in FEM2018
- Author(s)
  Issei Oikawa
- Organizer
  International Workshop on Numerical Methods for PDEs, Hong Kong Polytechnic University, Hong Kong
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14243
[Presentation] 数値流束をハイブリッド化したHDG法2018
- Author(s)
  及川一誠
- Organizer
  応用数学合同研究集会
- Data Source
  KAKENHI-PROJECT-17K14243
[Presentation] 実行列に対する実および複素作用素ノルムの違いについて2017
- Author(s)
  及川一誠
- Organizer
  研究集会「非線形現象と高精度高品質数値解析」
- Place of Presentation
  富山大学人間発達科学部
- Year and Date
  2017-02-13
- Invited
- Data Source
  KAKENHI-PROJECT-26800089
[Presentation] 混合型HDG法における次数低減スキーム2017
- Author(s)
  及川一誠
- Organizer
  日本応用数理学会年度年会
- Data Source
  KAKENHI-PROJECT-17K14243
[Presentation] Reduced stabilization for the HDG method2017
- Author(s)
  Issei Oikawa
- Organizer
  Recent Advances in Finite Element Methods
- Place of Presentation
  City University of Hong Kong, China
- Year and Date
  2017-03-13
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800089
[Presentation] Superconvergence of the HDG method2017
- Author(s)
  Issei Oikawa
- Organizer
  International Workshop on the Multi-Phase Flow; Analysis, Modeling and Numerics, Waseda University
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14243
[Presentation] HDG methods for second-order elliptic problems2016
- Author(s)
  Issei Oikawa
- Organizer
  RIMS 研究集会「現象解明に向けた数解析学の新展開 II」
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2016-10-19
- Invited
- Data Source
  KAKENHI-PROJECT-26800089
[Presentation] A finite element method for the Stokes equations with a penalized slip boundary condition2016
- Author(s)
  Issei Oikawa
- Organizer
  International Workshop on the Multi-Phase Flow; Analysis, Modeling and Numerics
- Place of Presentation
  Waseda University, Japan
- Year and Date
  2016-11-10
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800089
[Presentation] Stokes 方程式に対する弱安定化 HDG 法について2015
- Author(s)
  及川一誠
- Organizer
  日本応用数理学会２０１５年度年会
- Place of Presentation
  金沢大学
- Year and Date
  2015-09-11
- Data Source
  KAKENHI-PROJECT-26800089
[Presentation] HDG methods with reduced stabilization2015
- Author(s)
  Issei Oikawa
- Organizer
  International Workshop on the Multi-Phase Flow; Analysis, Modeling and Numerics
- Place of Presentation
  Waseda University
- Year and Date
  2015-11-11
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26800089
[Presentation] HDG methods with reduced stabilization2015
- Author(s)
  及川一誠
- Organizer
  RIMS 研究集会「現象解析に向けた数値解析学の新展開」
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2015-11-20
- Data Source
  KAKENHI-PROJECT-26800089
[Presentation] ハイブリッド型不連続Galerkin法の弱安定化スキームについて
- Author(s)
  及川一誠
- Organizer
  日本応用数理学会年度年会
- Place of Presentation
  政策研究大学院大学
- Year and Date
  2014-09-03 – 2014-09-05
- Data Source
  KAKENHI-PROJECT-26800089
[Presentation] A hybridized discontinuous Galerkin method with reduced stabilization
- Author(s)
  及川一誠
- Organizer
  日本数学会秋季総合分科会
- Place of Presentation
  広島大学
- Year and Date
  2014-09-25 – 2014-09-29
- Data Source
  KAKENHI-PROJECT-26800089

1. Saito Norikazu (00334706)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. SUITO Hiroshi (10302530)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. YAMADA Takahiro (40240022)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. TSUCHIYA Takuya (00163832)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. KOBAYASHI Kenta (60432902)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 佐々木多希子 (30780150)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 野津裕史 (00588783)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 金森正史 (50770872)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 三竹大寿 (90631979)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 柏原崇人

# of Collaborated Projects: 0 results

# of Collaborated Products: 3 results

Oikawa Issei 及川 一誠

Research Projects

Research Products

Co-Researchers

HDG法における反復型領域分割法の開発Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

New development of numerical analysis based on the space-time variational method

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Superconvergent HDG methods for the biharmonic equationPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

ハイブリッド型不連続Galerkin法の新展開Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

What is ``good" shape of elements in FEM

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Development of the hybridized discontinuous method and its mathematical analysisPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] An analysis on the penalty and Nitsche's methods for the Stokes?Darcy system with a curved interface2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Penalty method with Crouzeix-Raviart finite element approximation for the Stokes equations under the slip boundary condition2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] An HDG Method with Orthogonal Projections in Facet Integrals2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] HDG methods for second-order elliptic problems2017

Author(s)

Journal Title

Data Source

[Journal Article] A penalty method for the time-dependent Stokes problem with the slip boundary condition and its finite element application2017

Author(s)

Journal Title

Data Source

[Journal Article] A penalty method for the time-dependent Stokes problem with the slip boundary condition and its finite element approximation2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Penalty method with P1/P1 finite element approximation for the Stokes equations under the slip boundary condition2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Analysis of a Reduced-Order HDG Method for the Stokes Equations2015

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A hybridized discontinuous Galerkin method with reduced stabilization2015

Author(s)

Oikawa Issei 及川一誠

[Journal Article] Penalty Method for the Stationary Navier–Stokes Problems Under the Slip Boundary Condition2015