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Yasui Kouichi  安井 弘一

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YASUI Koichi  安井 弘一

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Researcher Number 70547009
Other IDs
Affiliation (Current) 2022: 大阪大学, 大学院情報科学研究科, 准教授
Affiliation (based on the past Project Information) *help 2017 – 2022: 大阪大学, 情報科学研究科, 准教授
2016: 広島大学, 理学研究科, 助教
2012 – 2016: 広島大学, 理学(系)研究科(研究院), 助教
2014 – 2015: 広島大学, 大学院理学研究科, 助教
2011 – 2012: 広島大学, 大学院・理学研究科, 助教
2010: 京都大学, 数理解析研究所, 研究員
2009: Kyoto University, 数理解析研究所, 特定研究員(グローバルCOE)
Review Section/Research Field
Principal Investigator
Geometry / Basic Section 11020:Geometry-related
Except Principal Investigator
Geometry / Basic Section 11020:Geometry-related
Keywords
Principal Investigator
4次元多様体 / 微分構造 / ハンドル分解 / トポロジー / コルク / 接触構造 / 結び目 / ハンドル体 / Stein構造 / 4次元多様体 … More / Bauer-Furuta 不変量 / Stein 多様体 / cork / plug / Kirby図式 / Stein多様体 / プラグ / Stein filling / レフシェッツファイブレーション / Lefschetz fibration / Stein 構造 / 4次元トポロジー / 安定化 / 単純型予想 / 随伴不等式 / Seiberg-Witten 不変量 … More
Except Principal Investigator
トポロジー / グラフィクス / 曲面結び目 / カンドル / 4次元トポロジー / 2-bridge knot / 2-bridge link / bridge decomposition / Heegaard splitting / McShane's identity / cusp shape / 写像類群 / 2橋結び目 / モノドロミー群 / Heckoid group / Heegaard decomposition / Heckoid orbifold / 2橋結び目 / small cancellation theory / McShaneの等式 / free period / 2橋球面 / 解消トンネル / 楕円的モンテシノス絡み目 / 4次元 / はめ込み曲面絡み目 / マーカー付きグラフ図式 / 1ハンドル / 大域リーマン幾何 / 薄滑解析(Nonsmooth Analysis) / リプシッツ写像 / 異種球面 / Reebの球面定理 / Groveと塩濱の臨界点理論 / 最小跡 / 薄滑解析 / 大域リーマン幾何学 / 異種構造 / 球面定理 / 折り紙 / 微分構造 / 微分球面定理 / 薄滑解析(Nonsmooth analysis) / 沈め込み / リーマン幾何 / 薄滑解析(Nonsmooth Analysis) / 崩壊理論 / ブレイド Less
  • Research Projects

    (9 results)
  • Research Products

    (101 results)
  • Co-Researchers

    (32 People)
  •  4次元多様体の微分構造と結び目Principal Investigator

    • Principal Investigator
      安井 弘一
    • Project Period (FY)
      2019 – 2022
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 11020:Geometry-related
    • Research Institution
      Osaka University
  •  Research on 4-dimensional topology from the viewpoint of graphics and quandle theory

    • Principal Investigator
      鎌田 聖一
    • Project Period (FY)
      2019 – 2023
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 11020:Geometry-related
    • Research Institution
      Osaka University
  •  The application of nonsmooth analysis to the collapsing theory and exotic structure

    • Principal Investigator
      KONDO Kei
    • Project Period (FY)
      2017 – 2021
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Okayama University
      Yamaguchi University
  •  Handle decompositions and smooth structures of 4-manifoldsPrincipal Investigator

    • Principal Investigator
      YASUI Kouichi
    • Project Period (FY)
      2016 – 2018
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Geometry
    • Research Institution
      Osaka University
      Hiroshima University
  •  Research on 4-dimensional topology from the viewpoint of graphics and quandle theory

    • Principal Investigator
      KAMADA SEIICHI
    • Project Period (FY)
      2014 – 2018
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Osaka City University
  •  Research on smooth structures on 4-manifolds using handle decompositionsPrincipal Investigator

    • Principal Investigator
      YASUI Kouichi
    • Project Period (FY)
      2013 – 2015
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Geometry
    • Research Institution
      Hiroshima University
  •  Handle decompositions and smooth structures on 4-manifoldPrincipal Investigator

    • Principal Investigator
      YASUI Kouichi
    • Project Period (FY)
      2011 – 2012
    • Research Category
      Grant-in-Aid for Research Activity Start-up
    • Research Field
      Geometry
    • Research Institution
      Hiroshima University
  •  Geometric structure and combinatorial structure of 3-dimensional manifolds

    • Principal Investigator
      SAKUMA MAKOTO
    • Project Period (FY)
      2010 – 2014
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Geometry
    • Research Institution
      Hiroshima University
  •  カービー図式を用いた4次元多様体の微分構造の研究Principal Investigator

    • Principal Investigator
      安井 弘一
    • Project Period (FY)
      2009 – 2010
    • Research Category
      Grant-in-Aid for Research Activity Start-up
    • Research Field
      Geometry
    • Research Institution
      Kyoto University

All 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009

All Journal Article Presentation

  • [Journal Article] Geometrically simply connected 4-manifolds and stable cohomotopy Seiberg-Witten invariants2020

    • Author(s)
      Kouichi Yasui
    • Journal Title

      Geometry & Topology

      Volume: 印刷中

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Journal Article] Geometrically simply connected 4-manifolds and stable cohomotopy Seiberg-Witten invariants2020

    • Author(s)
      Kouichi Yasui
    • Journal Title

      Geometry & Topology

      Volume: -

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Journal Article] Nonexistence of twists and surgeries generating exotic 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Journal Title

      Transactions of the American Mathematical Society

      Volume: 印刷中

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Journal Article] Nonexistence of twists and surgeries generating exotic 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Journal Title

      Transactions of the American Mathematical Society

      Volume: -

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Journal Article] On twists and surgeries generating exotic smooth structures2018

    • Author(s)
      Kouichi Yasui
    • Journal Title

      RIMS Kokyuroku

      Volume: 2099 Pages: 30-35

    • Open Access
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Journal Article] On twists and surgeries generating exotic smooth structures2018

    • Author(s)
      Kouichi Yasui
    • Journal Title

      RIMS Kokyuroku

      Volume: 2099 Pages: 30-35

    • Open Access
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Journal Article] Calabi-Yau Caps, Uniruled Caps and Symplectic Fillings2017

    • Author(s)
      Tian-Jun Li, Cheuk Yu Mak and Kouichi Yasui
    • Journal Title

      Proceedings of the London Mathematical Society

      Volume: 114 Pages: 159-187

    • DOI

      10.1112/plms.12007

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Journal Article] Maximal Thurston-Bennequin number and reducible Legendrian surgery2016

    • Author(s)
      Kouichi Yasui
    • Journal Title

      Compositio Mathematica

      Volume: 印刷中

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Journal Article] Contact 5-manifolds admitting open books with exotic pages2016

    • Author(s)
      Selman Akbulut and Kouichi Yasui
    • Journal Title

      Mathematical Research Letters

      Volume: 印刷中

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Journal Article] Nonexistence of Stein structures on 4-manifolds and maximal Thurston-Bennequin numbers2016

    • Author(s)
      Kouichi Yasui
    • Journal Title

      Journal of Symplectic Geometry

      Volume: 印刷中

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Journal Article] Infinitely many small exotic Stein fillings2014

    • Author(s)
      Selman Akbulut and Kouichi Yasui
    • Journal Title

      Journal of Symplectic Geometry

      Volume: 4 Pages: 673-684

    • DOI

      10.4310/jsg.2014.v12.n4.a2

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Journal Article] Cork twisting exotic Stein 4-manifolds2013

    • Author(s)
      Selman Akbulut and Kouichi Yasui
    • Journal Title

      Journal of Differential Geometry

      Volume: 93 Pages: 1-36

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Journal Article] Gluck twisting 4-manifolds with odd intersection form2013

    • Author(s)
      Selman Akbulut and Kouichi Yasui
    • Journal Title

      Mathematical Research Letters

      Volume: 02 Pages: 385-389

    • DOI

      10.4310/mrl.2013.v20.n2.a13

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Journal Article] Cork twisting exotic Stein 4-manifolds2013

    • Author(s)
      Selman Akbulut and Kouichi Yasui
    • Journal Title

      Journal of Differential Geometry 93

      Volume: no. 1 Pages: 1-36

    • URL

      http://projecteuclid.org/DPubS?service=UI&version=1.0&verb=Display&page=toc&handle=euclid.jdg/1357141504

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Journal Article] Stein 4-manifolds and corks2012

    • Author(s)
      Selman Akbulut and Kouichi Yasui
    • Journal Title

      Journal of Gokova Geometry Topology

      Volume: 6 Pages: 58-79

    • URL

      http://gokovagt.org/journal/2012/index.html

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Stably exotic pairs of closed 4-manifolds and their applications2021

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] Stably exotic pairs of closed 4-manifolds and their applications2021

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Presentation] Stably exotic pairs of closed 4-manifolds and their applications2021

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Data Source
      KAKENHI-PROJECT-19H01788
  • [Presentation] Minimal genus functions and constraints on 4-manifolds2020

    • Author(s)
      Kouichi Yasui
    • Organizer
      International Workshop on 4-Manifold Theory and Gauge Theory
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] Embedded surfaces and the simple type conjecture2020

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Data Source
      KAKENHI-PROJECT-19H01788
  • [Presentation] Embedded surfaces and the simple type conjecture2020

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」、大阪大学(オンライン)
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Presentation] Minimal genus functions and constraints on 4-manifolds2020

    • Author(s)
      Kouichi Yasui
    • Organizer
      International Workshop on 4-Manifold Theory and Gauge Theory
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Presentation] Minimal genus functions and constraints on 4-manifolds2020

    • Author(s)
      Kouichi Yasui
    • Organizer
      International Workshop on 4-Manifold Theory and Gauge Theory
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H01788
  • [Presentation] Stably exotic 4-manifolds2020

    • Author(s)
      安井 弘一
    • Organizer
      4-Dimensional Topology and Gauge Theory
    • Invited
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] Embedded surfaces and the simple type conjecture2020

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] 4 次元多様体の微分構造と幾何学的単連結性2019

    • Author(s)
      安井 弘一
    • Organizer
      広島大学談話会
    • Invited
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] Minimal genus functions and smooth structures of 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on Lefschetz Pencils and Low dimensional Topology
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H01788
  • [Presentation] Minimal genus functions and smooth structures of 4-manifolds2019

    • Author(s)
      安井弘一
    • Organizer
      微分トポロジー19 ~4次元多様体に埋め込まれた曲面とその手術~
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Nonexistence of twists and surgeries generating exotic 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on low-dimensional topology
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] Nonexistence of twists and surgeries generating exotic 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on low-dimensional topology (Korea Institute for Advanced Study, Korea, 5月1日)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Presentation] Minimal genus functions and smooth structures of 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on Lefschetz Pencils and Low dimensional Topology
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] 4次元多様体の微分構造と幾何学的単連結性2019

    • Author(s)
      安井弘一
    • Organizer
      広島大学談話会(広島大学,6月18日)
    • Invited
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Presentation] Minimal genus functions and smooth structures of 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on low-dimensional topology (Korea Institute for Advanced Study, Korea, 5月1日)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Presentation] Minimal genus functions and smooth structures of 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on low-dimensional topology
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] Smooth 4-manifolds and geometric simple connectivity2019

    • Author(s)
      安井弘一
    • Organizer
      京都大学数学教室談話会(京都大学,10月30日)
    • Invited
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Presentation] Nonexistence of twists and surgeries generating exotic 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on low-dimensional topology
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H01788
  • [Presentation] Smooth 4-manifolds and geometric simple connectivity2019

    • Author(s)
      安井 弘一
    • Organizer
      京都大学数学教室談話会
    • Invited
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] Stably exotic 4-manifolds2019

    • Author(s)
      安井 弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Data Source
      KAKENHI-PROJECT-19K03491
  • [Presentation] Minimal genus functions and smooth structures of 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on low-dimensional topology
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H01788
  • [Presentation] Minimal genus functions and smooth structures of 4-manifolds2019

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on Lefschetz Pencils and Low dimensional Topology (Hokkaido University,6月2日)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05220
  • [Presentation] Minimal genus functions and smooth structures of 4-manifolds2018

    • Author(s)
      Kouichi Yasui
    • Organizer
      Knotted surfaces in 4-manifolds
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Corks and exotic 4-manifolds represented by framed knots2018

    • Author(s)
      Kouichi Yasui
    • Organizer
      The topology and geometry of low-dimensional manifolds: a celebration of the mathematics of Bob Gompf
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Nonexistence of twists and surgeries generating exotic 4-manifolds2018

    • Author(s)
      安井弘一
    • Organizer
      Intelligence of Low-dimensional Topology
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Nonexistence of twists and surgeries generating exotic 4-manifolds2018

    • Author(s)
      安井弘一
    • Organizer
      九州大学金曜トポロジーセミナー
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Geometrically simply connected 4-manifolds and stable cohomotopy Seiberg-Witten invariants2018

    • Author(s)
      Kouichi Yasui
    • Organizer
      Four Dimensional Topology
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Exotic Stein fillings of contact 3-manifolds2017

    • Author(s)
      Kouichi Yasui
    • Organizer
      The Third Pacific Rim Mathematical Association Congress
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26287013
  • [Presentation] Nonexistence of twists and surgeries generating exotic 4-manifolds2017

    • Author(s)
      安井弘一
    • Organizer
      日本数学会2017年度秋季総合分科会
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Nonexistence of twists and surgeries generating exotic 4-manifolds2017

    • Author(s)
      Kouichi Yasui
    • Organizer
      Low Dimensional Topology and Gauge Theory
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Exotic Stein fillings of contact 3-manifolds2017

    • Author(s)
      Kouichi Yasui
    • Organizer
      The Third Pacific Rim Mathematical Association Congress
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] 4次元多様体の微分構造とコルク2017

    • Author(s)
      安井弘一
    • Organizer
      大阪大学談話会
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Contact 5-manifolds and smooth structures on Stein 4-manifolds2016

    • Author(s)
      安井弘一
    • Organizer
      日本数学会2016年度秋季総合分科会
    • Place of Presentation
      関西大学
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] 4次元シュタイン多様体と結び目2016

    • Author(s)
      安井弘一
    • Organizer
      第63回トポロジーシンポジウム
    • Place of Presentation
      神戸大学
    • Invited
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Contact 5-manifolds admitting open books with exotic Stein page2016

    • Author(s)
      安井弘一
    • Organizer
      接触構造,特異点,微分方程式及びその周辺
    • Place of Presentation
      金沢大学
    • Year and Date
      2016-01-23
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Corks, exotic 4-manifolds and knot concordance2016

    • Author(s)
      安井弘一
    • Organizer
      Branched Coverings, Degenerations, and Related Topics 2016
    • Place of Presentation
      広島大学
    • Year and Date
      2016-03-10
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Nonexistence of Stein structures on 4-manifolds and maximal Thurston-Bennequin numbers2016

    • Author(s)
      安井弘一
    • Organizer
      日本数学会2016年度年会
    • Place of Presentation
      筑波大学
    • Year and Date
      2016-03-18
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Nonexistence of twists and surgeries generating exotic 4-manifolds2016

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Place of Presentation
      大阪市立大学
    • Data Source
      KAKENHI-PROJECT-16K17593
  • [Presentation] Maximal Thurston-Bennequin number and reducible Legendrian surgery2016

    • Author(s)
      安井弘一
    • Organizer
      日本数学会2016年度年会
    • Place of Presentation
      筑波大学
    • Year and Date
      2016-03-18
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Stein 4次元多様体の微分構造と5次元多様体の接触構造2016

    • Author(s)
      安井弘一
    • Organizer
      微分トポロジー16
    • Place of Presentation
      筑波大学
    • Year and Date
      2016-03-22
    • Invited
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Corks, exotic 4-manifolds and knot concordance2015

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2015-11-21
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Partial twists and exotic Stein fillings2015

    • Author(s)
      安井弘一
    • Organizer
      微分トポロジー15~微分トポロジーの過去・現在・未来~
    • Place of Presentation
      京都大学
    • Year and Date
      2015-03-25
    • Invited
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Corks, exotic 4-manifolds and knot concordance2015

    • Author(s)
      安井弘一
    • Organizer
      Friday Seminar on Knot Theory
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2015-06-26
    • Invited
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Corks, exotic 4-manifolds and knot concordance2015

    • Author(s)
      安井弘一
    • Organizer
      日本数学会2015年度秋季総合分科会
    • Place of Presentation
      京都産業大学
    • Year and Date
      2015-09-15
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Exotic 4-manifolds and non-concordant knots with the same 0-surgery2015

    • Author(s)
      安井弘一
    • Organizer
      広島大学トポロジー・幾何セミナー
    • Place of Presentation
      広島大学
    • Year and Date
      2015-04-21
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Contact 5-manifolds admitting open books with exotic Stein pages2015

    • Author(s)
      Selman Akbulut, 安井弘一
    • Organizer
      日本数学会2015年度秋季総合分科会
    • Place of Presentation
      京都産業大学
    • Year and Date
      2015-09-15
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Partial twists and exotic Stein fillings2014

    • Author(s)
      安井弘一
    • Organizer
      幾何学コロキウム
    • Place of Presentation
      北海道大学
    • Year and Date
      2014-06-13
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Partial twists and exotic Stein fillings2014

    • Author(s)
      Kouichi Yasui
    • Organizer
      Topology Seminar
    • Place of Presentation
      Kansas State University (アメリカ)
    • Year and Date
      2014-11-14
    • Invited
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Partial twists and exotic Stein fillings2014

    • Author(s)
      安井弘一
    • Organizer
      広島大学トポロジー・幾何セミナー
    • Place of Presentation
      広島大学
    • Year and Date
      2014-06-24
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Partial twists and exotic Stein fillings2014

    • Author(s)
      Kouichi Yasui
    • Organizer
      Topology Seminar
    • Place of Presentation
      Michigan State University (アメリカ)
    • Year and Date
      2014-10-06
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Partial twists and exotic Stein fillings2014

    • Author(s)
      安井弘一
    • Organizer
      東工大トポロジーセミナー
    • Place of Presentation
      東京工業大学
    • Year and Date
      2014-07-09
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Stein 構造の4 次元多様体への応用についてII2014

    • Author(s)
      安井弘一
    • Organizer
      接触構造、特異点、微分方程式及びその周辺
    • Place of Presentation
      高知市文化プラザかるぽーと
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Partial twists and exotic Stein fillings2014

    • Author(s)
      安井弘一
    • Organizer
      日本数学会2014年度年会
    • Place of Presentation
      学習院大学
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Stein 構造の4 次元多様体への応用についてI2014

    • Author(s)
      安井弘一
    • Organizer
      接触構造、特異点、微分方程式及びその周辺
    • Place of Presentation
      高知市文化プラザかるぽーと
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Corks and exotic smooth structures on 4-manifolds2014

    • Author(s)
      Kouichi Yasui
    • Organizer
      Colloquium
    • Place of Presentation
      Kansas State University (アメリカ)
    • Year and Date
      2014-11-13
    • Invited
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Partial twists and exotic Stein fillings2014

    • Author(s)
      Kouichi Yasui
    • Organizer
      Differential Geometry and Symplectic Topology Seminar
    • Place of Presentation
      University of Minnesota (アメリカ)
    • Year and Date
      2014-09-25
    • Invited
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Partial twists and exotic Stein fillings2014

    • Author(s)
      Kouichi Yasui
    • Organizer
      Workshop on Topology and Invariants of 4-Manifolds
    • Place of Presentation
      Simons Center for Geometry and Physics, Stony Brook University (アメリカ)
    • Year and Date
      2014-08-26
    • Invited
    • Data Source
      KAKENHI-PROJECT-25800048
  • [Presentation] Corks and exotic 4-manifolds2013

    • Author(s)
      安井弘一
    • Organizer
      日本数学会 2013 年度年会(特別講演)
    • Place of Presentation
      京都大学
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] exotic Stein fillings and exotic S^2-links2013

    • Author(s)
      Kouichi Yasui, Nuclei
    • Organizer
      FRG Topology Workshop 2013 Topology and Invariants of Smooth 4-manifolds
    • Place of Presentation
      The Savoy Hotel, Miami (アメリカ)
    • Year and Date
      2013-03-14
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Nuclei, exotic Stein fillings and exotic S^2-links2013

    • Author(s)
      Kouichi Yasui
    • Organizer
      FRG Topology Workshop 2013 Topology and Invariants of Smooth 4-manifolds
    • Place of Presentation
      The Savoy Hotel, Miami (アメリカ)
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Corks and exotic 4-manifolds2013

    • Author(s)
      安井 弘一
    • Organizer
      日本数学会2013年度年会
    • Place of Presentation
      京都大学
    • Invited
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Corks and exotic 4-manifolds2012

    • Author(s)
      Kouichi Yasui
    • Organizer
      Conference on Holomorphic Curves and Low Dimensional Topology
    • Place of Presentation
      Stanford University (アメリカ)
    • Year and Date
      2012-08-09
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Gluck twisting 4-manifolds with odd intersection form2012

    • Author(s)
      Selman Akbulut, 安井 弘一 (発表者:安井弘一)
    • Organizer
      日本数学会2012年度秋季総合分科会
    • Place of Presentation
      九州大学
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Cork twisting exotic Stein 4-manifolds2012

    • Author(s)
      Kouichi Yasui
    • Organizer
      Invariants in Low-Dimensional Topology and Knot Theory
    • Place of Presentation
      The Mathematisches Forschungsinstitut Oberwolfach (ドイツ)
    • Invited
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Cork twisting exotic Stein 4-manifolds2012

    • Author(s)
      Kouichi Yasui
    • Organizer
      Invariants in Low-DimensionalTopologyandKnotTheory
    • Place of Presentation
      the Mathematisches Forschungsinstitut Oberwolfach (ドイツ)
    • Year and Date
      2012-06-05
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Nuclei and exotic 4-manifolds2012

    • Author(s)
      Kouichi Yasui
    • Organizer
      The 8th East Asian School of Knots and Related Topics
    • Place of Presentation
      Daejeon,韓国
    • Year and Date
      2012-01-09
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Exotic S^2-knots and Gluck twists2012

    • Author(s)
      安井 弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Place of Presentation
      広島大学
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Nuclei and exotic 4-manifolds2012

    • Author(s)
      Kouichi Yasui
    • Organizer
      Geometry/Topology Focus Research Group Workshop
    • Place of Presentation
      Miami,アメリカ合衆国
    • Year and Date
      2012-03-14
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Nuclei and exotic 4-manifolds2012

    • Author(s)
      Kouichi Yasui
    • Organizer
      The 8th East Asian School of Knots and Related Topics
    • Place of Presentation
      Korea Advanced Institute of Science and Technology (韓国)
    • Year and Date
      2012-01-09
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Nuclei and exotic 4-manifolds2012

    • Author(s)
      Kouichi Yasui
    • Organizer
      FRG Workshop 2012 Topology and Invariants of Smooth 4-manifolds
    • Place of Presentation
      The Mutiny Hotel, Miami (アメリカ)
    • Year and Date
      2012-03-14
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Exotic S^2-knots and Gluck twists2012

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Place of Presentation
      広島大学
    • Year and Date
      2012-11-15
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Gluck twisting 4-manifolds with odd intersection form2012

    • Author(s)
      安井弘一
    • Organizer
      日本数学会 2012年度秋季総合分科会(一般講演)
    • Place of Presentation
      九州大学
    • Year and Date
      2012-09-18
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Cork twisting exoticStein 4-manifolds2011

    • Author(s)
      安井弘一
    • Organizer
      日本数学会 2011 年度秋季総合分科会(一般講演)
    • Place of Presentation
      信州大学
    • Year and Date
      2011-09-28
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] 4 次元多様体のコルクとその応用2011

    • Author(s)
      安井弘一
    • Organizer
      広島大学談話会
    • Place of Presentation
      広島大学
    • Year and Date
      2011-06-14
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Cork twisting exotic Stein 4-manifolds2011

    • Author(s)
      Kouichi Yasui
    • Organizer
      Eighteenth Gokova Geometry/Topology Conference
    • Place of Presentation
      Gokova,トルコ(招待講演)
    • Year and Date
      2011-06-02
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] 4 次元多様体の微分構造と閉曲面の種数2011

    • Author(s)
      安井弘一
    • Organizer
      近畿大学数学講演会
    • Place of Presentation
      近畿大学
    • Year and Date
      2011-12-01
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Cork twisting exotic Stein 4-manifolds2011

    • Author(s)
      Kouichi Yasui
    • Organizer
      Eighteenth Gokova Geometry/Topology Conference
    • Place of Presentation
      Gokova (トルコ)
    • Year and Date
      2011-06-02
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Cork twisting exoticStein 4-manifolds2011

    • Author(s)
      安井弘一
    • Organizer
      阪大トポロジーセミナー
    • Place of Presentation
      大阪大学
    • Year and Date
      2011-08-02
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Cork twisting exoticStein 4-manifolds2011

    • Author(s)
      安井弘一
    • Organizer
      広島大学トポロジー幾何セミナー
    • Place of Presentation
      広島大学
    • Year and Date
      2011-04-26
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Exotic 4-manifolds with boundary, minimalgeneraandSteinfillable3-manifolds2011

    • Author(s)
      安井弘一
    • Organizer
      研究集会「4次元トポロジー」
    • Place of Presentation
      広島大学
    • Year and Date
      2011-11-08
    • Data Source
      KAKENHI-PROJECT-23840027
  • [Presentation] Corks, plugs and exotic 4-manifolds2010

    • Author(s)
      安井弘一
    • Organizer
      Intensive Lectures on Lefschetz fibration
    • Place of Presentation
      KIAS (韓国)
    • Data Source
      KAKENHI-PROJECT-21840033
  • [Presentation] Corks, plugs and exotic 4-manifolds2009

    • Author(s)
      安井弘一
    • Organizer
      第56回トポロジーシンポジウム
    • Place of Presentation
      北海道大学 (北海道)
    • Year and Date
      2009-08-09
    • Data Source
      KAKENHI-PROJECT-21840033
  • [Presentation] Corks, plugs and exotic 4-manifolds2009

    • Author(s)
      安井弘一
    • Organizer
      Sixteenth Gokova Geometry/Topology Conference
    • Place of Presentation
      Gokova (トルコ)
    • Year and Date
      2009-05-27
    • Data Source
      KAKENHI-PROJECT-21840033
  • 1.  KAMADA Seiichi (60254380)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 0 results
  • 2.  河内 明夫 (00112524)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 3.  金信 泰造 (00152819)
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  • 4.  大槻 知忠 (50223871)
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    # of Collaborated Projects: 2 results
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  • 7.  大城 佳奈子 (90609091)
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  • 11.  HIRANOUCHI Toshiro (59321203)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 12.  KONO Masaharu (40170203)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 13.  NIKKUNI Ryo (00401878)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 14.  AKIYOSHI Hirotaka (80397611)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 15.  HIRASAWA Mikami (00337908)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 16.  OHSHIKA Ken'ICHI (70183225)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 17.  WADA Masaaki (80192821)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 18.  MIYACHI Hideki (40385480)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 19.  KIN Eiko (80378554)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 20.  KOBAYASHI Tsuyoshi (00186751)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 21.  YAMASHITA Yasushi (70239987)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 22.  MORIMOTO Kanji (90200443)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 23.  NAKANISHI Toshihiro (00172354)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 24.  KOMORI Yohei (70264794)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 25.  SUGAWA Toshiyuki (30235858)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 26.  SHACKLETON Kenneth (70536870)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 27.  土井 英雄 (50197993)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 28.  平之内 俊郎 (30532551)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 29.  KONDO Kei (70736123)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 30.  内藤 博夫 (10127772)
    # of Collaborated Projects: 1 results
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  • 31.  中内 伸光 (50180237)
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