• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Okada Takuzo  岡田 拓三

ORCIDConnect your ORCID iD *help
… Alternative Names

OKADA Takuzo  岡田 拓三

Less
Researcher Number 20547012
Other IDs
Affiliation (Current) 2025: 九州大学, 数理学研究院, 教授
Affiliation (based on the past Project Information) *help 2024: 九州大学, 数理学研究院, 教授
2021 – 2023: 佐賀大学, 理工学部, 教授
2022: 九州大学, 数理学研究院, 教授
2018 – 2020: 佐賀大学, 理工学部, 准教授
2015 – 2017: 佐賀大学, 工学(系)研究科(研究院), 准教授 … More
2012 – 2014: 佐賀大学, 工学(系)研究科(研究院), 講師
2013: 佐賀大学, 大学院工学系研究科, 教授
2009 – 2010: Kyoto University, 数理解析研究所, 特定研究員(グローバルCOE) Less
Review Section/Research Field
Principal Investigator
Algebra / Basic Section 11010:Algebra-related
Except Principal Investigator
Algebra / Basic Section 11010:Algebra-related
Keywords
Principal Investigator
ファノ多様体 / 有理性問題 / K安定性 / 双有理剛性 / del Pezzo曲面束 / del Pezzo束 / 重み付き超曲面 / 森ファイバー空間 / 双有理堅牢性 / del Pezzo 束 … More / 安定有理性 / コニック束 / 代数幾何学 / 重み付き完全交叉 / 有理性 / 双有理的有界性 / Qファノ多様体 / 双有理的非有界性 / 有理連結多様体 … More
Except Principal Investigator
代数幾何学 / Castelnuovo-Mumford正則量 / Castelnuovo-Mumford / シジジー / 射影多様体 / 可換環論 / 代数幾何 / 不分岐コホモロジー群 / 双有理不変量 / 有理性問題 / ハッセ・ノルム原理 / 代数的トーラス / 算術階数 / Stanley-Reisner イデアル / Stanley-Reisnerイデアル / 記号的べき / 射影次元 / 辺イデアル / Segre積 / ベクトル束 / Del Pezzo多様体 / Buchsbaum多様体 / Buchsbaum 多様体 / 自由分解 / Castelnuovo / Horrocks判定法 / 極小自由分解 / 多項式イデアル Less
  • Research Projects

    (9 results)
  • Research Products

    (89 results)
  • Co-Researchers

    (19 People)
  •  Number theory and algebraic geometry and computer mathematics - New developments on rationality problems for algebraic varieties -

    • Principal Investigator
      星 明考
    • Project Period (FY)
      2024 – 2026
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 11010:Algebra-related
    • Research Institution
      Niigata University
  •  Birational geometry of Fano varietiesPrincipal Investigator

    • Principal Investigator
      岡田 拓三
    • Project Period (FY)
      2022 – 2026
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 11010:Algebra-related
    • Research Institution
      Kyushu University
      Saga University
  •  Rationality problem of algebraic varieties and related topicsPrincipal Investigator

    • Principal Investigator
      Okada Takuzo
    • Project Period (FY)
      2018 – 2022
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 11010:Algebra-related
    • Research Institution
      Saga University
  •  Castelnuovo-Mumford regularity and syzygies for projective varieties and its related topics

    • Principal Investigator
      Miyazaki Chikashi
    • Project Period (FY)
      2014 – 2019
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Kumamoto University
      Saga University
  •  Arithmetical rank of Stanley-Reisner ideals and projective dimension of their powers

    • Principal Investigator
      Terai Naoki
    • Project Period (FY)
      2014 – 2016
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Saga University
  •  Birational Mori fiber structures of Fano varieties and rationality problemPrincipal Investigator

    • Principal Investigator
      Okada Takuzo
    • Project Period (FY)
      2014 – 2017
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Algebra
    • Research Institution
      Saga University
  •  Explicit study of rationality of Q-Fano varieties and its related topicsPrincipal Investigator

    • Principal Investigator
      OKADA Takuzo
    • Project Period (FY)
      2012 – 2013
    • Research Category
      Grant-in-Aid for Research Activity Start-up
    • Research Field
      Algebra
    • Research Institution
      Saga University
  •  Castelnuovo-Mumford regularity for projective variety and its related topics

    • Principal Investigator
      MIYAZAKI Chikashi
    • Project Period (FY)
      2009 – 2013
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Algebra
    • Research Institution
      Saga University
  •  Birational geometry of nonrational rationally connected varietiesPrincipal Investigator

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

All 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2010 2009

All Journal Article Presentation

  • [Journal Article] Stable rationality of index one Fano hypersurfaces containing a linear space2022

    • Author(s)
      Takuzo Okada
    • Journal Title

      European Journal of Mathematics

      Volume: 8 Issue: 3 Pages: 1158-1171

    • DOI

      10.1007/s40879-021-00513-5

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K03216, KAKENHI-PROJECT-23K22389
  • [Journal Article] Smooth weighted hypersurfaces that are not stably rational2021

    • Author(s)
      Takuzo Okada
    • Journal Title

      Ann. Inst. Fourier (Grenoble)

      Volume: 71 Issue: 1 Pages: 203-237

    • DOI

      10.5802/aif.3390

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Journal Article] Alpha invariants of birationally bi-rigid Fano 3-folds I2021

    • Author(s)
      In-Kyun Kim、Takuzo Okada、Joonyeong Won
    • Journal Title

      European Journal of Mathematics

      Volume: 7 Issue: 1 Pages: 272-308

    • DOI

      10.1007/s40879-020-00441-w

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Journal Article] Birational Mori fiber structures of Q-Fano 3-fold weighted complete intersections, III2020

    • Author(s)
      Takuzo Okada
    • Journal Title

      Kyoto Journal of Mathematics

      Volume: 60 Issue: 3 Pages: 825-893

    • DOI

      10.1215/21562261-2019-0048

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Journal Article] Birationally superrigid Fano 3-folds of codimension 42020

    • Author(s)
      Takuzo Okada
    • Journal Title

      Algebra & Number Theory

      Volume: 14 Issue: 1 Pages: 191-212

    • DOI

      10.2140/ant.2020.14.191

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Journal Article] Stable Rationality of del Pezzo Fibrations of Low Degree Over Projective Spaces2020

    • Author(s)
      Igor Krylov、Takuzo Okada
    • Journal Title

      International Mathematics Research Notices

      Volume: 2020 Issue: 23 Pages: 9075-9119

    • DOI

      10.1093/imrn/rny252

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Journal Article] On birational rigidity of singular del Pezzo fibrations of degree 12020

    • Author(s)
      Takuzo Okada
    • Journal Title

      Journal of the London Mathematical Society

      Volume: 102 Issue: 1 Pages: 1-21

    • DOI

      10.1112/jlms.12304

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Journal Article] Stable Rationality of Cyclic Covers of Projective Spaces2019

    • Author(s)
      Takuzo Okada
    • Journal Title

      Proceedings of the Edinburgh Mathematical Society

      Volume: 62 Issue: 3 Pages: 667-682

    • DOI

      10.1017/s0013091518000755

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K03216, KAKENHI-PROJECT-26400048
  • [Journal Article] Stable rationality of orbifold Fano 3-fold hypersurfaces2019

    • Author(s)
      Takuzo Okada
    • Journal Title

      Journal of Algebraic Geometry

      Volume: 28 Issue: 1 Pages: 99-138

    • DOI

      10.1090/jag/712

    • NAID

      120005973323

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K03216, KAKENHI-PROJECT-26400048
  • [Journal Article] Birationally rigid Pfaffian Fano 3-folds2018

    • Author(s)
      Hamid Ahmadinezhad, Takuzo Okada
    • Journal Title

      Algebraic Geometry

      Volume: 5 Pages: 160-199

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Journal Article] Alpha Invariants of Birationally Rigid Fano Three-folds2018

    • Author(s)
      In-Kyun Kim, Takuzo Okada, Joonyeong Won
    • Journal Title

      International Mathematics Research Notices

      Volume: 印刷中 Pages: 2745-2800

    • DOI

      10.1093/imrn/rnw310

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019, KAKENHI-PROJECT-26400048
  • [Journal Article] Birational Mori fiber structures of Q-Fano 3-fold weighted complete intersections, II2018

    • Author(s)
      Takuzo Okada
    • Journal Title

      Journal fur die reine und angewandte Mathematik

      Volume: 印刷中 Issue: 738 Pages: 160-199

    • DOI

      10.1515/crelle-2015-0054

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019, KAKENHI-PROJECT-26400048
  • [Journal Article] Stable rationality of higher dimensional conic bundles2018

    • Author(s)
      Hamid Ahmadinezhad、Takuzo Okada
    • Journal Title

      Epijournal del Geometrie Algebrique

      Volume: 2 Pages: 1-13

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Journal Article] Q-Fano threefolds with three birational Mori fiber structures2017

    • Author(s)
      Takuzo Okada
    • Journal Title

      "Algebraic Varieties and Automorphism Groups", Advanced Studies in Pure Mathematics

      Volume: 75 Pages: 393-424

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Journal Article] Nonrational del Pezzo fibrations admitting an action of the Klein simple group2016

    • Author(s)
      Takuzo Okada
    • Journal Title

      Eur. J. Math

      Volume: 2 Pages: 319-332

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26400048
  • [Journal Article] Nonrational del Pezzo fibrations admitting an action of the Klein simple group2016

    • Author(s)
      Takuzo Okada
    • Journal Title

      European Journal of Mathematics

      Volume: 2 Issue: 1 Pages: 319-332

    • DOI

      10.1007/s40879-015-0080-2

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Journal Article] Birational Mori fiber structures of Q-Fano threefold weighted complete intersections2014

    • Author(s)
      Takuzo Okada
    • Journal Title

      Proc. London Math. Soc.

      Volume: 109 Issue: 6 Pages: 1549-1600

    • DOI

      10.1112/plms/pdu044

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26400048, KAKENHI-PROJECT-26800019
  • [Journal Article] Takuzo Okada, Birational superrigidity and slope stability of Fano manifolds2013

    • Author(s)
      Yuji Odaka
    • Journal Title

      Mathematische Zeitschrift

      Volume: vol.275, Issue 3-4 Issue: 3-4 Pages: 1109-1119

    • DOI

      10.1007/s00209-013-1172-7

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Journal Article] Birational superrigidity and slope stability of Fano manifolds2013

    • Author(s)
      Yuji Odaka and Takuzo Okada
    • Journal Title

      Math. Z.

      Volume: 273 Pages: 1109-1119

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540044
  • [Journal Article] Birational superrigidity and slope stability of Fano manifolds2013

    • Author(s)
      Odaka Yuji and Okada Takuzo
    • Journal Title

      Math. Z

      Volume: 275

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540044
  • [Journal Article] Birational unboundedness of log terminal Q-Fano varieties and rationally connected strict Mori fiber spaces2010

    • Author(s)
      Takuzo Okada
    • Journal Title

      RIMS preprint RIMS-1706

      Pages: 1-27

    • Data Source
      KAKENHI-PROJECT-21840032
  • [Journal Article] Birational unboundedness of log terminal Q-Fano varieties and rationally connected strict Mori fiber spaces2010

    • Author(s)
      Takuzo Okada
    • Journal Title

      RIMS Preprint

      Volume: RIMS-1706 Pages: 1-27

    • Data Source
      KAKENHI-PROJECT-21840032
  • [Journal Article] On the birational unboundedness of higher dimensional Q-Fano varieties2009

    • Author(s)
      Takuzo Okada
    • Journal Title

      Mathematische Annalen Vol.345

      Pages: 195-212

    • NAID

      120001723784

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Journal Article] On the birational unboundedness of higher dimensional Q-Fano varieties2009

    • Author(s)
      Takuzo Okada
    • Journal Title

      Mathematische Annalen Vol. 345

      Pages: 195-212

    • NAID

      120001723784

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Journal Article] Nonrational weighted hypersurfaces2009

    • Author(s)
      Takuzo Okada
    • Journal Title

      Nagoya Mathematical Journal Vol. 194

      Pages: 1-32

    • NAID

      120005763694

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Birational rigidity of certain singular Fano 3-folds2022

    • Author(s)
      Takuzo Okada
    • Organizer
      The 21st Affine Algebraic Geometry Meeting
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] On birationally solid Fano 3-fold hypersurfaces2022

    • Author(s)
      Takuzo Okada
    • Organizer
      Algebraic Geometry Seminar (IBS-CGP, Pohang, Korea)
    • Invited
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Birational rigidity of certain singular Fano 3-folds2022

    • Author(s)
      岡田拓三
    • Organizer
      The 21st Affine Algebraic Geometry Meeting
    • Invited
    • Data Source
      KAKENHI-PROJECT-23K22389
  • [Presentation] On birationally solid Fano 3-fold hypersurfaces2022

    • Author(s)
      Takuzo Okada
    • Organizer
      Algebraic Geometry Seminar at IBS-CGP
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K22389
  • [Presentation] On birationally solid Fano 3-folds2022

    • Author(s)
      Takuzo Okada
    • Organizer
      Rationality, Moduli Spaces, and Related Topics
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] On birationally solid Fano 3-folds2022

    • Author(s)
      Takuzo Okada
    • Organizer
      Rationality, Moduli Spaces, and Related Topics
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K22389
  • [Presentation] Birational geometry of sextic double solids with cA points2021

    • Author(s)
      Takuzo Okada
    • Organizer
      Algebraic Geometry Seminar (Online, IBS-CGP)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Birational geometry of Fano 3-fold WCIs2021

    • Author(s)
      Takuzo Okada
    • Organizer
      Fano varieties and Birational Geometry
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Birational geometry of Fano 3-fold weighted complete intersections2021

    • Author(s)
      Takuzo Okada
    • Organizer
      The 19th Affine Algebraic Geometry Meeting
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] 代数多様体の有理性の問題2021

    • Author(s)
      岡田拓三
    • Organizer
      複素幾何学の諸問題II
    • Invited
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Birational geometry of sextic double solids2021

    • Author(s)
      Takuzo Okada
    • Organizer
      Seminar of Algebraic Geometry in East Asis
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] On K-stability of birationally superrigid Fano 3-folds2020

    • Author(s)
      岡田拓三
    • Organizer
      阪大オンライン代数幾何学セミナー
    • Invited
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] K-stability of birationally superrigid Fano 3-fold weighted hypersurfaces2020

    • Author(s)
      Takuzo Okada
    • Organizer
      Zoom Algebraic Geometry Seminar
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] On K-stability of birationally superrigid Fano 3-folds2019

    • Author(s)
      Takuzo Okada
    • Organizer
      Birational Geometry, Kaehler-Einstein metrics and Degenerations (HSE, Moscow, Russia)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] On the degree of irrationality of quartic 3-folds2019

    • Author(s)
      Takuzo Okada
    • Organizer
      Birational Geometry, Kaehler-Einstein metrics and Degenerations (IBS-CGP, Pohang, Korea)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Birationally superrigid Fano 3-folds of codimension 42019

    • Author(s)
      Takuzo Okada
    • Organizer
      Birational Geometry and Fano Varieties (Steklov Math. Inst., Moscow, Russia)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Birationally superrigid Fano 3-folds of codimension 42019

    • Author(s)
      Takuzo Okada
    • Organizer
      Algebraic Geometry International Conference (KIAS, Seoul, Korea)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Birationally superrigid Fano threefolds of codimension 42019

    • Author(s)
      Takuzo Okada
    • Organizer
      Kinosaki Algebraic Geometry Symposium 2019 (城崎国際アートセンター)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] 3次元4次超曲面の非有理次数について2019

    • Author(s)
      岡田拓三
    • Organizer
      湯布院代数幾何ワークショップ (日本文理大学湯布院研修所)
    • Invited
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Birationally superrigid Fano 3-folds of codimension 42019

    • Author(s)
      岡田拓三
    • Organizer
      ファノ多様体及び関連する代数幾何学 (九州大学)
    • Invited
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Failure of stable rationality of various algebraic varieties via reduction modulo p2018

    • Author(s)
      Takuzo Okada
    • Organizer
      Birational Geometry and Arithmetic (Brown University, USA)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] On birational rigidity of singular del Pezzo fibrations of degree 12018

    • Author(s)
      Takuzo Okada
    • Organizer
      Positivity in Algebraic Geometry (Yonsei University, Korea)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] On birational rigidity of singular del Pezzo fibrations of degree 12018

    • Author(s)
      Takuzo Okada
    • Organizer
      The 16th Affine Algebraic Geometry Meeting
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Birational rigidity of del Pezzo fibrations2018

    • Author(s)
      Takuzo Okada
    • Organizer
      Explicit Birational and Affine Geometry (Saitama University)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Failure of stable rationality of various algebraic varieties2018

    • Author(s)
      Takuzo Okada
    • Organizer
      Algebraic Geometry in East Asia (VAST, Vietnam)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K03216
  • [Presentation] Stable rationality of conic bundles over projective spaces2017

    • Author(s)
      岡田拓三
    • Organizer
      農工大数学セミナー2017
    • Place of Presentation
      東京農工大学小金井キャンパス
    • Invited
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] On stable rationality of del Pezzo fibrations2017

    • Author(s)
      Takuzo Okada
    • Organizer
      アフィン代数幾何学研究集会
    • Place of Presentation
      関西学院大学大阪梅田キャンパス
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Stable rationality of higher dimensional conic bundles2017

    • Author(s)
      岡田拓三
    • Organizer
      野田シンポジウム
    • Place of Presentation
      東京理科大学野田キャンパス
    • Invited
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] On stable rationality problem of Fano varieties2017

    • Author(s)
      Takuzo Okada
    • Organizer
      Stability, Boundedness and Fano varieties
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Smooth weighted hypersurfaces that are not stably rational2017

    • Author(s)
      Takuzo Okada
    • Organizer
      Birkar's boundedness and Cremona groups (Edge days 2017)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Birationally bi-rigid Fano threefolds of codimension 22016

    • Author(s)
      Takuzo Okada
    • Organizer
      Heilbronn Focused Research Workshop on Birational Geometry
    • Place of Presentation
      University of Warwick, UK
    • Year and Date
      2016-02-11
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Stable rationality of orbifold Fano 3-fold hypersurfaces2016

    • Author(s)
      Takuzo Okada
    • Organizer
      城崎代数幾何学シンポジウム
    • Place of Presentation
      城崎国際アートセンター
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Classification of birationally bi-rigid Fano 3-fold weighted complete intersections2016

    • Author(s)
      Takuzo Okada
    • Organizer
      Higher dimensional algebraic geometry and around, Kobe-Kyoto
    • Place of Presentation
      京都大学
    • Year and Date
      2016-02-04
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Stable rationality of cyclic covers and some orbifold Fano 3-folds2016

    • Author(s)
      Takuzo Okada
    • Organizer
      Workshop on birational geometry and reduction to positive characteristic
    • Place of Presentation
      University of Edinburgh
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Non-rationality of del Pezzo fibrations by reduction modulo p2016

    • Author(s)
      Takuzo Okada
    • Organizer
      Linfoot Seminar
    • Place of Presentation
      University of Bristol, UK
    • Year and Date
      2016-02-17
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Stable rationality of orbifold Fano 3-fold hypersurfaces2016

    • Author(s)
      Takuzo Okada
    • Organizer
      Rationality and selfmaps
    • Place of Presentation
      京都大学数理解析研究所
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Birationally rigid Pfaffian Fano 3-folds2015

    • Author(s)
      岡田拓三
    • Organizer
      第3回杜の都代数幾何研究集会
    • Place of Presentation
      福岡大学セミナーハウス
    • Year and Date
      2015-11-26
    • Invited
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Birational geometry of Fano 3-folds of codimension 2 and 32015

    • Author(s)
      Takuzo Okada
    • Organizer
      Algebraic Geometry Seminar
    • Place of Presentation
      IBS Center for Geometry and Physics, Pohang, Korea
    • Year and Date
      2015-09-15
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] 3次元ファノ多様体の双有理幾何に着いて2015

    • Author(s)
      岡田拓三
    • Organizer
      第133回日本数学会九州支部例会(特別講演)
    • Place of Presentation
      佐賀大学
    • Year and Date
      2015-10-24
    • Invited
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Nonrational del Pezzo fibrations admitting an action of the Klein simple group2015

    • Author(s)
      Takuzo Okada
    • Organizer
      Workshop on singular del Pezzo surfaces (Edge days 2015)
    • Place of Presentation
      University of Edinburgh, UK
    • Year and Date
      2015-06-05
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Birational geometry of Q-Fano 3-fold weighted complete intersections2014

    • Author(s)
      Takuzo Okada
    • Organizer
      Landau-Ginzburg theory and Fano varieties
    • Place of Presentation
      Gyeongyu, Korea
    • Year and Date
      2014-05-26
    • Invited
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] 3次元Qファノ重み付き完全交叉の双有理的森ファイバー構造について2014

    • Author(s)
      岡田拓三
    • Organizer
      第12回代数曲線論シンポジウム
    • Place of Presentation
      日本大学理工学部
    • Year and Date
      2014-12-20
    • Invited
    • Data Source
      KAKENHI-PROJECT-26800019
  • [Presentation] Rationality problem of 3-dimensional weighted complete intersections2013

    • Author(s)
      岡田拓三
    • Organizer
      代数幾何セミナー
    • Place of Presentation
      名古屋大学
    • Invited
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] 3次元重み付き完全交叉の有理性問題について2013

    • Author(s)
      岡田拓三
    • Organizer
      埼玉大学談話会
    • Place of Presentation
      埼玉大学
    • Year and Date
      2013-05-31
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] On birationally tririgid Q-Fano threefolds2013

    • Author(s)
      岡田拓三
    • Organizer
      代数幾何学セミナー
    • Place of Presentation
      東京大学
    • Year and Date
      2013-12-09
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] 重み付き完全交叉の有理性問題について2013

    • Author(s)
      岡田拓三
    • Organizer
      特異点論月曜セミナー
    • Place of Presentation
      日本大学
    • Year and Date
      2013-02-19
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] On birationlly tririgid Q-Fano threefolds2013

    • Author(s)
      岡田拓三
    • Organizer
      射影多様体の幾何とその周辺2013
    • Place of Presentation
      高知大学
    • Year and Date
      2013-11-04
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] Introduction to rationality problem of quartic (and cubic) 3-folds2013

    • Author(s)
      Takuzo Okada
    • Organizer
      Workshop in Algebraic Geometry in Sapporo
    • Place of Presentation
      北海道大学
    • Year and Date
      2013-08-28
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] On birationally tririgid Q-Fano threefolds2013

    • Author(s)
      Takuzo Okada
    • Organizer
      第12回アフィン代数幾何学研究集会
    • Place of Presentation
      関西学院大学大阪梅田キャンパス
    • Year and Date
      2013-09-05
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] On birationally tririgid Q-Fano threefolds2013

    • Author(s)
      岡田拓三
    • Organizer
      Fano多様体の最近の進展
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2013-12-16
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] On birationally tririgid Q-Fano threefolds2013

    • Author(s)
      岡田拓三
    • Organizer
      射影多様体の幾何とその周辺2013
    • Place of Presentation
      高知大学
    • Invited
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] Rationality problem of 3-dimensional weighted complete intersections2013

    • Author(s)
      岡田拓三
    • Organizer
      代数幾何学セミナー
    • Place of Presentation
      名古屋大学
    • Year and Date
      2013-04-17
    • Data Source
      KAKENHI-PROJECT-24840034
  • [Presentation] Birational unboundedness of Q-Fano varieties of dimension at least five2010

    • Author(s)
      岡田拓三
    • Organizer
      アフィン代数幾何学研究集会
    • Place of Presentation
      関西学院大学大阪梅田キャンパス
    • Year and Date
      2010-03-04
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Birational unboundedness of Q-Fano varieties2010

    • Author(s)
      岡田拓三
    • Organizer
      School (and workshop) on the minimal model program and Shokurov's ACC conjecture
    • Place of Presentation
      University of Trento(イタリア)
    • Year and Date
      2010-07-09
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Qファノ多様体の双有理的非有界性2010

    • Author(s)
      岡田拓三
    • Organizer
      早大理工代数幾何学セミナー
    • Place of Presentation
      早稲田大学
    • Year and Date
      2010-05-21
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Birational unboundedness of Q-Fano varieties of dimension at least five2010

    • Author(s)
      岡田拓三
    • Organizer
      代数幾何小研究集会
    • Place of Presentation
      埼玉大学
    • Year and Date
      2010-03-02
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] On the rationality problem of Q-Fano weighted hypersurfaces of dimension three2010

    • Author(s)
      岡田拓三
    • Organizer
      代数幾何学セミナー
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-01-25
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Qファノ多様体の双有理的非有界性2010

    • Author(s)
      岡田拓三
    • Organizer
      複素幾何セミナー
    • Place of Presentation
      首都大学東京
    • Year and Date
      2010-05-26
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Birational unboundedness of Q-Fano varieties of dimension at least five2010

    • Author(s)
      岡田拓三
    • Organizer
      代数幾何学小研究集会
    • Place of Presentation
      埼玉大学
    • Year and Date
      2010-03-02
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Qファノ多様体の双有理的非有界性2010

    • Author(s)
      岡田拓三
    • Organizer
      複素幾何セミナー
    • Place of Presentation
      首都大学東京(招待講演)
    • Year and Date
      2010-05-26
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Qファノ多様体の双有理的非有界性2010

    • Author(s)
      岡田拓三
    • Organizer
      早大理工代数幾何学セミナー
    • Place of Presentation
      早稲田大学(招待講演)
    • Year and Date
      2010-05-21
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Birational unboundedness of rationally connected Mori fiber spaces2010

    • Author(s)
      岡田拓三
    • Organizer
      都の西北 代数幾何学シンポジウム
    • Place of Presentation
      早稲田大学(招待講演)
    • Year and Date
      2010-11-12
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Birational unboundedness of rationally connected Mori fiber spaces2010

    • Author(s)
      岡田拓三
    • Organizer
      都の西北 代数幾何学シンポジウム
    • Place of Presentation
      早稲田大学
    • Year and Date
      2010-11-12
    • Data Source
      KAKENHI-PROJECT-21840032
  • [Presentation] Birational unboundedness of Q-Fano varieties of dimension at least five2009

    • Author(s)
      岡田拓三
    • Organizer
      高次元代数幾何の周辺
    • Place of Presentation
      数理解析研究所
    • Year and Date
      2009-12-18
    • Data Source
      KAKENHI-PROJECT-21840032
  • 1.  MIYAZAKI Chikashi (90229831)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 0 results
  • 2.  TERAI Naoki (90259862)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 0 results
  • 3.  ICHIKAWA Takashi (20201923)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 4.  NOMA Atsushi (90262401)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 5.  AMASAKI Mutsumi (10243536)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 6.  OGATA Shoetsu (90177113)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 7.  YOSHIDA KENICHI (80240802)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 8.  YANAGAWA KOUJI (40283006)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 9.  KIMURA KYOUKO (60572633)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 10.  庄田 敏宏 (10432957)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 11.  青山 崇洋 (60516178)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 12.  星 明考 (50434262)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 13.  山崎 愛一 (10283590)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 14.  木田 雅成 (20272057)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 15.  安田 健彦 (30507166)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 16.  山木 壱彦 (80402973)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 17.  下元 数馬 (70588780)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 18.  小島 秀雄 (90332824)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 19.  橋詰 健太 (40934211)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results

URL: 

Are you sure that you want to link your ORCID iD to your KAKEN Researcher profile?
* This action can be performed only by the researcher himself/herself who is listed on the KAKEN Researcher’s page. Are you sure that this KAKEN Researcher’s page is your page?

この研究者とORCID iDの連携を行いますか?
※ この処理は、研究者本人だけが実行できます。

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi