Yusaku Chiba 千葉優作

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Tiba Yusaku 千葉優作

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Researcher Number	90635616
Other IDs	https://orcid.org/0000-0002-4780-5274
Affiliation (Current)	2026: お茶の水女子大学, 基幹研究院, 准教授
Affiliation (based on the past Project Information) *help	2026: お茶の水女子大学, 基幹研究院, 准教授 2022 – 2024: お茶の水女子大学, 基幹研究院, 准教授 2021 – 2022: お茶の水女子大学, 基幹研究院, 講師 2017 – 2020: お茶の水女子大学, 基幹研究院, 助教 2016: 東京大学, 大学院数理科学研究科, 特任助教 2015: 東京大学, 数理(科)学研究科(研究院), 助教
Review Section/Research Field	Principal Investigator Basic Section 12010:Basic analysis-related / Basic analysis
Keywords	Principal Investigator ケーラー多様体 / モンジュ・アンペールカレント / モンジュ・アンペール方程式 / 複素モンジュ・アンペール方程式 / カレント / シュタイン多様体 / 複素幾何学 / ボーア・ゾンマーフェルト条件 / ラグランジュ部分多様体 / ボーア・ゾンマーフェルトラグランジュ部分多様体 … More / 前量子化束 / ボーア・ゾンマーフェルトラグランジュ部分多様体 / 関数論 / 正則関数 / 多重劣調和関数 / コホモロジー / 擬凸領域 / 正カレント / ベクトルバンドルのコホモロジー / 多重列調和関数 / カレントの台集合 / トーリック多様体 / 正則線束 / 正則ベクトル束 / 多重劣調和函数 / 正則写像 / 正則曲線 Less

Research Projects
(4 results)
Research Products
(28 results)

半古典解析によるコーシー・リーマン方程式の研究Principal Investigator
- Principal Investigator
  
  千葉優作
- Project Period (FY)
  2026 – 2030
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 12010:Basic analysis-related
- Research Institution
  Ochanomizu University
複素多様体におけるカレントの台集合の研究Principal Investigator
- Principal Investigator
  
  千葉優作
- Project Period (FY)
  2021 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 12010:Basic analysis-related
- Research Institution
  Ochanomizu University
Applications of the Monge Ampere equation on Kahler manifolds to entire curvesPrincipal Investigator
- Principal Investigator
  
  Tiba Yusaku
- Project Period (FY)
  2017 – 2022
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Basic analysis
- Research Institution
  Ochanomizu University
Holomorphic curves and complex Monge-Ampere equationPrincipal Investigator
- Principal Investigator
  
  Tiba Yusaku
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Research Field
  
  Basic analysis
- Research Institution
  The University of Tokyo

All 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016

All Journal Article Presentation

[Journal Article] The extension of holomorphic functions on a non-pluriharmonic locus2023
- Author(s)
  Yusaku Tiba
- Journal Title
  
  Jounal of Mathematical Scienses, University of Tokyo
  
  Volume: 30
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14200
[Journal Article] The Extension of Holomorphic Functions on a Non-Pluriharmonic Locus2023
- Author(s)
  Yusaku TIba
- Journal Title
  
  Journal of Mathematical Sciences, University of Tokyo
  
  Volume: 30
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K03266
[Journal Article] The extension of holomorphic functions on a non-pluriharmonic locus2023
- Author(s)
  Y. Tiba
- Journal Title
  
  J. Math. Sci. Univ. Tokyo
  
  Volume: 30
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K03266
[Journal Article] Cohomology of non-pluriharmonic loci2019
- Author(s)
  Yusaku Tiba
- Journal Title
  
  Mathematische Zeitschrift
  
  Volume: 293 Issue: 3-4 Pages: 1403-1414
- DOI
  10.1007/s00209-019-02273-1
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14200
[Journal Article] On a convex level set of a plurisubharmonic function and the support of the Monge-Ampere current2018
- Author(s)
  Yusaku Tiba
- Journal Title
  
  Mathematici Annales Polonici Mathematici
  
  Volume: 121 Issue: 3 Pages: 251-262
- DOI
  10.4064/ap180423-14-8
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14200
[Journal Article] The intersection of an entire holomorphic mapping and a complex Monge-Ampere current with a bounded potential2016
- Author(s)
  Yusaku Tiba
- Journal Title
  
  Proceedings of the American Mathematical Society
  
  Volume: 144 Issue: 12 Pages: 5265-5273
- DOI
  10.1090/proc/13295
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H06129
[Presentation] Polarizations and convergences of holomorphic sections on the tangent bundle of a Bohr-Sommerfeld Lagrangian submanifold2025
- Author(s)
  千葉優作
- Organizer
  大阪大学　幾何セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-21K03266
[Presentation] Polarizations and convergences of holomorphic sections on the tangent bundle of a Bohr-Sommerfeld Lagrangian submanifold2024
- Author(s)
  千葉優作
- Organizer
  東京大学数理科学研究科　複素解析幾何セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-21K03266
[Presentation] Polarizations and convergences of holomorphic sections on the tangent bundle of a Bohr-Sommerfeld Lagrangian submanifold2024
- Author(s)
  千葉優作
- Organizer
  慶應義塾大学　微分幾何・トポロジーセミナー
- Invited
- Data Source
  KAKENHI-PROJECT-21K03266
[Presentation] Asymptotic estimates of holomorphic sections on Bohr-Sommerfeld Lagrangian submanifolds,2022
- Author(s)
  千葉優作
- Organizer
  第６５回関数論シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-21K03266
[Presentation] ボーア・ゾンマーフェルトラグランジュ部分多様体上の漸近的劣平均値定理2022
- Author(s)
  千葉優作
- Organizer
  多変数関数論冬セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-21K03266
[Presentation] ボーア・ゾンマーフェルトラグランジュ部分多様体上の漸近的劣平均値定理2022
- Author(s)
  千葉優作
- Organizer
  多変数関数論冬セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] Asymptotic estimates of holomorphic sections on Bohr-Sommerfeld Lagrangian submanifolds2022
- Author(s)
  千葉優作
- Organizer
  第６５回関数論シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] Asymptotic estimates of holomorphic sections on Bohr-Sommerfeld Lagrangian submanifolds2021
- Author(s)
  千葉優作
- Organizer
  日本数学会2022年度年会
- Data Source
  KAKENHI-PROJECT-21K03266
[Presentation] Asymptotic estimates of holomorphic sections on Bohr-Sommerfeld Lagrangian submanifolds2021
- Author(s)
  Yusaku TIba
- Organizer
  日本数学会年会
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] Cohomology of vector bundles and non-pluriharmonic loci2020
- Author(s)
  Yusaku Tiba
- Organizer
  Grauert theory and recent complex geometry
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] Cohomology of vector bundles and non-pluriharmonic loci2019
- Author(s)
  千葉優作
- Organizer
  複素解析幾何セミナー
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] Cohomology of vector bundles and non-pluriharmonic loci2019
- Author(s)
  千葉優作
- Organizer
  日本数学会
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] The cohomology of vector bundles and non-pluriharmonic loci2019
- Author(s)
  千葉優作
- Organizer
  Workshop on on Holomorphic Maps, Pluripotentials and Complex Geometry
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] 非多重調和領域上の正則関数の拡張定理2018
- Author(s)
  千葉優作
- Organizer
  広島複素解析セミナー（広島大学）
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] The cohomology of non-pluriharmonic loci2018
- Author(s)
  千葉優作
- Organizer
  多変数関数論冬セミナー
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] The cohomology of non-pluriharmonic loci2018
- Author(s)
  千葉優作
- Organizer
  日本数学会2018年度秋季総合分科会
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] Cohomology of non-pluriharmonic loci2018
- Author(s)
  千葉優作
- Organizer
  幾何学セミナー（大阪大学）
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] Cohomology of non-pluriharmonic loci2018
- Author(s)
  千葉優作
- Organizer
  複素解析幾何セミナー（東京大学）
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] The extension of holomorohic functions on a non-pluriharmonic locus2017
- Author(s)
  千葉　優作
- Organizer
  日本数学会秋季総合分科会
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] The extension of holomorphic functions on a non-pluriharmonic locus2017
- Author(s)
  Yusaku Tiba
- Organizer
  Pacific Rim complex-Symplectic Geometry conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14200
[Presentation] The intersection of an entire holomorphic mapping and a complex Monge-Ampere current with a bounded potential2016
- Author(s)
  千葉優作
- Organizer
  多変数関数論冬セミナー
- Place of Presentation
  福岡工業大学
- Year and Date
  2016-12-17
- Data Source
  KAKENHI-PROJECT-15H06129
[Presentation] Entire mappings and Monge-Amp\`ere currents with bounded potentials2016
- Author(s)
  千葉優作
- Organizer
  複素解析幾何学のポテンシャル論的諸相
- Place of Presentation
  東京大学数理科学研究科
- Year and Date
  2016-02-12
- Data Source
  KAKENHI-PROJECT-15H06129

Yusaku Chiba 千葉 優作

Tiba Yusaku 千葉 優作

Research Projects

Research Products

半古典解析によるコーシー・リーマン方程式の研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

複素多様体におけるカレントの台集合の研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Applications of the Monge Ampere equation on Kahler manifolds to entire curvesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Holomorphic curves and complex Monge-Ampere equationPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] The extension of holomorphic functions on a non-pluriharmonic locus2023

Author(s)

Journal Title

Data Source

[Journal Article] The Extension of Holomorphic Functions on a Non-Pluriharmonic Locus2023

Author(s)

Journal Title

Data Source

[Journal Article] The extension of holomorphic functions on a non-pluriharmonic locus2023

Author(s)

Journal Title

Data Source

[Journal Article] Cohomology of non-pluriharmonic loci2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] On a convex level set of a plurisubharmonic function and the support of the Monge-Ampere current2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] The intersection of an entire holomorphic mapping and a complex Monge-Ampere current with a bounded potential2016

Author(s)

Journal Title

DOI

Data Source

[Presentation] Polarizations and convergences of holomorphic sections on the tangent bundle of a Bohr-Sommerfeld Lagrangian submanifold2025

Author(s)

Organizer

Data Source

[Presentation] Polarizations and convergences of holomorphic sections on the tangent bundle of a Bohr-Sommerfeld Lagrangian submanifold2024

Author(s)

Organizer

Data Source

[Presentation] Polarizations and convergences of holomorphic sections on the tangent bundle of a Bohr-Sommerfeld Lagrangian submanifold2024

Author(s)

Organizer

Data Source

[Presentation] Asymptotic estimates of holomorphic sections on Bohr-Sommerfeld Lagrangian submanifolds,2022

Author(s)

Organizer

Data Source

[Presentation] ボーア・ゾンマーフェルト ラグランジュ部分多様体上の漸近的劣平均値定理2022

Author(s)

Organizer

Data Source

[Presentation] ボーア・ゾンマーフェルト ラグランジュ部分多様体上の漸近的劣平均値定理2022

Author(s)

Organizer

Data Source

[Presentation] Asymptotic estimates of holomorphic sections on Bohr-Sommerfeld Lagrangian submanifolds2022

Yusaku Chiba 千葉優作

Tiba Yusaku 千葉優作

[Presentation] ボーア・ゾンマーフェルトラグランジュ部分多様体上の漸近的劣平均値定理2022

[Presentation] ボーア・ゾンマーフェルトラグランジュ部分多様体上の漸近的劣平均値定理2022