Kasuya Naohiko 粕谷直彦

Researcher Number	70757765
Other IDs
Affiliation (Current)	2025: 北海道大学, 理学研究院, 准教授
Affiliation (based on the past Project Information) *help	2021 – 2025: 北海道大学, 理学研究院, 准教授 2017 – 2020: 京都産業大学, 理学部, 准教授
Review Section/Research Field	Principal Investigator Basic Section 11020:Geometry-related / Geometry Except Principal Investigator Basic Section 11020:Geometry-related / Broad Section B
Keywords	Principal Investigator 接触構造 / 強擬凹境界 / 複素曲面 / CR構造 / 射影的埋め込み / 強擬凹複素曲面 / ハンドル接着 / ケーラーでない複素曲面 / ４次元トポロジー / 対数変換 … More / 楕円曲線 / 開複素曲面 / 開複素多様体 / 4次元多様体 / 複素構造 / トポロジー … More Except Principal Investigator Poisson 構造 / 実解析的1次元微分同相 / Anosov 葉層 / Lagrangian fibration / Lefschetz fibration / カスプ特異点 / 強擬凸性 / Anosov 流 / シンプレクティック構造 / 接触構造 / 葉層構造 / 多重次元Reebグラフ / Reeb complement / Gromollフィルトレーション / ホモトピー球面 / スペシャル・ジェネリック写像 / Reebグラフ / Reeb空間 / 次世代カタストロフ理論 / 幾何構造 / 多様体 / 幾何的トポロジー / 写像の特異点論 Less

Projective embedding theorem for strongly pseudoconcave surfacesPrincipal Investigator
- Principal Investigator
  
  粕谷直彦
- Project Period (FY)
  2025 – 2029
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Hokkaido University
Mathematical innovations woven by singularity theory and geometric topology
- Principal Investigator
  
  佐伯修
- Project Period (FY)
  2023 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Review Section
  
  Broad Section B
- Research Institution
  Kyushu University
強擬凹複素曲面とその境界に現れる接触構造Principal Investigator
- Principal Investigator
  
  粕谷直彦
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Hokkaido University
力学的微分トポロジーによる葉層・接触・シンプレクティック構造の研究
- Principal Investigator
  
  三松佳彦
- Project Period (FY)
  2021 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 11020:Geometry-related
- Research Institution
  Chuo University
Geometry of non-Kaehler open complex manifolds and 4-dimensional topologyPrincipal Investigator
- Principal Investigator
  
  Kasuya Naohiko
- Project Period (FY)
  2017 – 2022
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Geometry
- Research Institution
  Hokkaido University
  Kyoto Sangyo University

All 2024 2023 2022 2021 2020 2018 2017

All Journal Article Presentation

[Journal Article] On the strongly pseudoconcave boundary of a compact complex surface2024
- Author(s)
  Naohiko Kasuya and Daniele Zuddas
- Journal Title
  
  Proceedings of the American Mathematical Society
  
  Volume: 152-2 Pages: 709-723
- DOI
  10.1090/proc/16603
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13797, KAKENHI-PROJECT-23H05437, KAKENHI-PROJECT-23K20798
[Journal Article] A concave holomorphic filling of an overtwisted contact $3$-sphere2023
- Author(s)
  Naohiko Kasuya and Daniele Zuddas
- Journal Title
  
  Algebraic & Geometric Topology
  
  Volume: 23-5 Issue: 5 Pages: 2141-2156
- DOI
  10.2140/agt.2023.23.2141
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13797, KAKENHI-PROJECT-23H05437, KAKENHI-PROJECT-23K20798
[Journal Article] On the deformation of the exceptional unimodal singularities2021
- Author(s)
  Naohiko Kasuya, Atsuhide Mori
- Journal Title
  
  Journal of Singularities
  
  Volume: 23 Pages: 1-14
- DOI
  10.5427/jsing.2021.23a
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14193, KAKENHI-PROJECT-23K20798
[Journal Article] CR regular embeddings of $S^{4n-1}$ in $\mathbb{C}^{2n+1}$2020
- Author(s)
  Naohiko Kasuya
- Journal Title
  
  Proceedings of the American Mathematical Society
  
  Volume: 148 Issue: 7 Pages: 3021-3024
- DOI
  10.1090/proc/14962
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14193
[Journal Article] Non-Kahler complex structures on $R^4$, II2018
- Author(s)
  Antonio J. Di Scala, Naohiko Kasuya, Daniele Zuddas
- Journal Title
  
  Journal of Symplectic Geometry
  
  Volume: 16-3
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14193
[Journal Article] Non-Kähler complex structures on $R^4$, II2018
- Author(s)
  Antonio Di Scala, Naohiko Kasuya, Daniele Zuddas
- Journal Title
  
  Journal of Symplectic Geometry
  
  Volume: 16(3) Issue: 3 Pages: 631-644
- DOI
  10.4310/jsg.2018.v16.n3.a2
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14193
[Presentation] Lefschetz fibrations on the Milnor fibers of cusp and simple elliptic singularities2023
- Author(s)
  Naohiko Kasuya
- Organizer
  Workshop "Topology of Singularities and Related Topics" (JSPS-VAST Bilateral Joint Research Project, JV2023 Quy Nhon)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K20798
[Presentation] Lefschetz fibrations on the Milnor fibers of cusp and simple elliptic singularities2023
- Author(s)
  Naohiko Kasuya
- Organizer
  Workshop "Topology of Singularities and Related Topics" (JSPS-VAST Bilateral Joint Research Project, JV2023 Quy Nhon)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H05437
[Presentation] Lefschetz fibrations on the Milnor fibers of cusp and simple elliptic singularities2023
- Author(s)
  Naohiko Kasuya
- Organizer
  Workshop "Topology of Singularities and Related Topics"
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K13797
[Presentation] カスプ特異点および単純楕円特異点のMilnor fiber上のLefschetz fibration2022
- Author(s)
  粕谷　直彦
- Organizer
  4次元トポロジー
- Data Source
  KAKENHI-PROJECT-23K20798
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2022
- Author(s)
  粕谷　直彦
- Organizer
  接触構造、特異点、微分方程式及びその周辺
- Invited
- Data Source
  KAKENHI-PROJECT-23K20798
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2022
- Author(s)
  粕谷直彦
- Organizer
  接触構造、特異点、微分方程式及びその周辺
- Invited
- Data Source
  KAKENHI-PROJECT-21K13797
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2022
- Author(s)
  粕谷直彦
- Organizer
  接触構造、特異点、微分方程式及びその周辺
- Invited
- Data Source
  KAKENHI-PROJECT-17K14193
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2021
- Author(s)
  粕谷直彦
- Organizer
  日本数学会2021年度秋季分科会
- Invited
- Data Source
  KAKENHI-PROJECT-21K13797
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2021
- Author(s)
  粕谷　直彦
- Organizer
  日本数学会2021年度秋季総合分科会（トポロジー分科会特別講演）
- Invited
- Data Source
  KAKENHI-PROJECT-23K20798
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2021
- Author(s)
  粕谷直彦
- Organizer
  東大複素解析幾何セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-17K14193
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2021
- Author(s)
  粕谷直彦
- Organizer
  日本数学会2021年度年会
- Data Source
  KAKENHI-PROJECT-17K14193
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2021
- Author(s)
  粕谷　直彦
- Organizer
  多変数関数論冬セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-23K20798
[Presentation] 強擬凹曲面の境界に現れる接触構造2021
- Author(s)
  粕谷直彦
- Organizer
  多変数関数論冬セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-21K13797
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2021
- Author(s)
  粕谷直彦
- Organizer
  東大複素解析幾何セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-21K13797
[Presentation] 強擬凹複素曲面の境界に現れる接触構造2021
- Author(s)
  粕谷直彦
- Organizer
  日本数学会2021年度秋季分科会
- Invited
- Data Source
  KAKENHI-PROJECT-17K14193
[Presentation] 強擬凹曲面の境界に現れる接触構造2021
- Author(s)
  粕谷直彦
- Organizer
  多変数関数論冬セミナー
- Invited
- Data Source
  KAKENHI-PROJECT-17K14193
[Presentation] Knots and links of complex tangents2018
- Author(s)
  粕谷直彦
- Organizer
  Intelligence of Low-dimensional Topology
- Invited
- Data Source
  KAKENHI-PROJECT-17K14193
[Presentation] Non-Kahler complex structures on $R^4$2017
- Author(s)
  Naohiko Kasuya
- Organizer
  Topology of pseudoconvex domains and analysis of reproducing kernels
- Invited
- Data Source
  KAKENHI-PROJECT-17K14193

1. 佐伯修 (30201510)

# of Collaborated Projects: 1 results

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2. 大本亨 (20264400)

# of Collaborated Projects: 1 results

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3. 鎌田聖一 (60254380)

# of Collaborated Projects: 1 results

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4. 古宇田悠哉 (20525167)

# of Collaborated Projects: 1 results

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5. 片長敦子 (20373128)

# of Collaborated Projects: 1 results

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6. 三松佳彦 (70190725)

# of Collaborated Projects: 1 results

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7. 直江央寛 (10823255)

# of Collaborated Projects: 1 results

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8. 高倉樹 (30268974)

# of Collaborated Projects: 1 results

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9. 太田啓史 (50223839)

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10. 三好重明 (60166212)

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Kasuya Naohiko 粕谷 直彦

Research Projects

Research Products

Co-Researchers

Projective embedding theorem for strongly pseudoconcave surfacesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Mathematical innovations woven by singularity theory and geometric topology

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

強擬凹複素曲面とその境界に現れる接触構造Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

力学的微分トポロジーによる葉層・接触・シンプレクティック構造の研究

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Geometry of non-Kaehler open complex manifolds and 4-dimensional topologyPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] On the strongly pseudoconcave boundary of a compact complex surface2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A concave holomorphic filling of an overtwisted contact $3$-sphere2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] On the deformation of the exceptional unimodal singularities2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] CR regular embeddings of $S^{4n-1}$ in $\mathbb{C}^{2n+1}$2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Non-Kahler complex structures on $R^4$, II2018

Author(s)

Journal Title

Data Source

[Journal Article] Non-K&auml;hler complex structures on $R^4$, II2018

Author(s)

Journal Title

DOI

Data Source

[Presentation] Lefschetz fibrations on the Milnor fibers of cusp and simple elliptic singularities2023

Author(s)

Organizer

Data Source

[Presentation] Lefschetz fibrations on the Milnor fibers of cusp and simple elliptic singularities2023

Author(s)

Organizer

Data Source

[Presentation] Lefschetz fibrations on the Milnor fibers of cusp and simple elliptic singularities2023

Author(s)

Organizer

Data Source

[Presentation] カスプ特異点および単純楕円特異点のMilnor fiber上のLefschetz fibration2022

Author(s)

Organizer

Data Source

[Presentation] 強擬凹複素曲面の境界に現れる接触構造2022

Kasuya Naohiko 粕谷直彦

[Journal Article] Non-Kähler complex structures on $R^4$, II2018