OHKUBO Shun 大久保俊

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Ohkubo Shun 大久保俊

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Researcher Number	20755160
Other IDs
Affiliation (Current)	2025: 名古屋大学, 多元数理科学研究科, 講師
Affiliation (based on the past Project Information) *help	2020 – 2024: 名古屋大学, 多元数理科学研究科, 講師 2015 – 2019: 名古屋大学, 多元数理科学研究科, 助教 2018: 名古屋大学, 大学院多元数理科学研究科, 助教
Review Section/Research Field	Principal Investigator Algebra / Basic Section 11010:Algebra-related Except Principal Investigator Broad Section B / Algebra
Keywords	Principal Investigator p進微分方程式 / ピカールフックス方程式 / 対数的増大度 / Gauss-Manin接続 / 生成的収束半径 / 微分加群 / Picard-Fuchs equation Except Principal Investigator リジッド解析幾何学 / フロベニウス写像 / p進微分方程式 … More / p進コホモロジー / スロープ / 非アルキメデス的バナッハ環 / パーフェクトイド / 代数学 / パーフェクトイド空間 / モチーフ理論 / 可換環論 / 整数論 / 代数幾何学 / 数論幾何学 / リジッド幾何学 Less

A new development of arithmetic geometry by p-adic methods
- Principal Investigator
  
  都築暢夫
- Project Period (FY)
  2024 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Review Section
  
  Broad Section B
- Research Institution
  Tohoku University
p進微分方程式の解の対数的増大度を駆使した数論幾何学における新手法Principal Investigator
- Principal Investigator
  
  大久保俊
- Project Period (FY)
  2022 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11010:Algebra-related
- Research Institution
  Nagoya University
p-adic differential equations on p-adic analytic spacesPrincipal Investigator
- Principal Investigator
  
  Ohkubo Shun
- Project Period (FY)
  2017 – 2021
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Algebra
- Research Institution
  Nagoya University
An asymptotic behavior of solutions of p-adic differential equationsPrincipal Investigator
- Principal Investigator
  
  Ohkubo Shun
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Research Field
  
  Algebra
- Research Institution
  Nagoya University
Foundations of rigid geometry from birational viewpoint
- Principal Investigator
  
  FUJIWARA KAZUHIRO
- Project Period (FY)
  2015 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Algebra
- Research Institution
  Nagoya University

All 2022 2021 2019 2018 2017 2016

All Journal Article Presentation

[Journal Article] Logarithmic growth filtrations for -modules over the bounded Robba ring2021
- Author(s)
  Ohkubo Shun
- Journal Title
  
  Compositio Mathematica
  
  Volume: 157 Issue: 6 Pages: 1265-1301
- DOI
  10.1112/s0010437x21007107
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14161
[Journal Article] Logarithmic growth filtrations for (\varphi,\nabla)-modules over the bounded Robba ring2021
- Author(s)
  Shun Ohkubo
- Journal Title
  
  Compositio Mathematica
  
  Volume: －
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14161
[Journal Article] A note on logarithmic growth of solutions of p-adic differential equations without solvability2019
- Author(s)
  Shun Ohkubo
- Journal Title
  
  Mathematical Research Letters
  
  Volume: 26 Issue: 5 Pages: 1527-1557
- DOI
  10.4310/mrl.2019.v26.n5.a13
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14161
[Presentation] A note on the convergence Newton polygons of p-adic differential equations in the regular singular case2022
- Author(s)
  Shun Ohkubo
- Organizer
  L-functions and Motives in Niseko 2022
- Invited
- Data Source
  KAKENHI-PROJECT-22K03227
[Presentation] A note on the variation of the subsidiary radii of convergence of p-adic differential equations in the regular singular case2022
- Author(s)
  Shun Ohkubo
- Organizer
  Around p-adic cohomologies
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K03227
[Presentation] A note on the convergence Newton polygons of p-adic differential equations in the regular singular case2021
- Author(s)
  大久保俊
- Organizer
  Arithmetic geometry research report meeting 2021
- Invited
- Data Source
  KAKENHI-PROJECT-17K14161
[Presentation] Logarithmic growth f.iltrations for (φ, ∇)-modules over the bounded Robba ring2019
- Author(s)
  Shun Ohkubo
- Organizer
  RIMS Workshop Algebraic Number Theory and Related Topics
- Invited
- Data Source
  KAKENHI-PROJECT-17K14161
[Presentation] Logarithmic growth filtrations for $(\varphi,\nabla)$-modules over the bounded Robba ring2018
- Author(s)
  Shun Ohkubo
- Organizer
  p-adic cohomology and arithmetic geometry 2018
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14161
[Presentation] On the logarithmic growth of solutions of p-adic differential equations2018
- Author(s)
  Shun Ohkubo
- Organizer
  UK-Japan Winter School 2018 on Number Theory
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14161
[Presentation] On the logarithmic growth of solutions of p-adic differential equations2017
- Author(s)
  Shun Ohkubo
- Organizer
  p-adic cohomology and arithmetic geometry
- Invited
- Data Source
  KAKENHI-PROJECT-17K14161
[Presentation] On the rationality of the logarithmic growth filtration of solutions of p-adic differential equations2017
- Author(s)
  Shun Ohkubo
- Organizer
  Seminaire de Geometrie Arithmetique
- Place of Presentation
  Universite de Rennes (France)
- Invited
- Data Source
  KAKENHI-PROJECT-15H06261
[Presentation] On the rationality of the logarithmic growth filtration of solutions of p-adic differential equations2017
- Author(s)
  Shun Ohkubo
- Organizer
  Geometrie analytique et equations differentielles p-adiques
- Place of Presentation
  CIRM (France)
- Invited
- Data Source
  KAKENHI-PROJECT-15H06261
[Presentation] On the rationality of the logarithmic growth filtration of solutions of p-adic differential equations2016
- Author(s)
  Shun Ohkubo
- Organizer
  Seminaire Theorie des Nombres
- Place of Presentation
  Universite Bordeaux (France)
- Invited
- Data Source
  KAKENHI-PROJECT-15H06261

1. KATO FUMIHARU (50294880)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. FUJIWARA KAZUHIRO (00229064)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. HESSELHOLT LARS (10436991)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. KONDO SHIGEYUKI (50186847)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. SAITO TAKESHI (70201506)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. SAITO SHUJI (50153804)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. TAKAHASHI RYO (40447719)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 都築暢夫 (10253048)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 志甫淳 (30292204)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 阿部知行 (70609289)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 中島幸喜 (80287440)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 三柴善範 (70737725)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 伊藤和広 (90962267)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

OHKUBO Shun 大久保 俊

Ohkubo Shun 大久保 俊

Research Projects

Research Products

Co-Researchers

A new development of arithmetic geometry by p-adic methods

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

p進微分方程式の解の対数的増大度を駆使した数論幾何学における新手法Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

p-adic differential equations on p-adic analytic spacesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

An asymptotic behavior of solutions of p-adic differential equationsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Foundations of rigid geometry from birational viewpoint

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Logarithmic growth filtrations for -modules over the bounded Robba ring2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Logarithmic growth filtrations for (\varphi,\nabla)-modules over the bounded Robba ring2021

Author(s)

Journal Title

Data Source

[Journal Article] A note on logarithmic growth of solutions of p-adic differential equations without solvability2019

Author(s)

Journal Title

DOI

Data Source

[Presentation] A note on the convergence Newton polygons of p-adic differential equations in the regular singular case2022

Author(s)

Organizer

Data Source

[Presentation] A note on the variation of the subsidiary radii of convergence of p-adic differential equations in the regular singular case2022

Author(s)

Organizer

Data Source

[Presentation] A note on the convergence Newton polygons of p-adic differential equations in the regular singular case2021

Author(s)

Organizer

Data Source

[Presentation] Logarithmic growth f.iltrations for (φ, ∇)-modules over the bounded Robba ring2019

Author(s)

Organizer

Data Source

[Presentation] Logarithmic growth filtrations for $(\varphi,\nabla)$-modules over the bounded Robba ring2018

Author(s)

Organizer

Data Source

[Presentation] On the logarithmic growth of solutions of p-adic differential equations2018

Author(s)

Organizer

Data Source

[Presentation] On the logarithmic growth of solutions of p-adic differential equations2017

Author(s)

Organizer

Data Source

[Presentation] On the rationality of the logarithmic growth filtration of solutions of p-adic differential equations2017

Author(s)

Organizer

OHKUBO Shun 大久保俊

Ohkubo Shun 大久保俊