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Minimal model program in positive characteristic

Research Project

Project/Area Number 18K13386
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 11010:Algebra-related
Research InstitutionThe University of Tokyo

Principal Investigator

Tanaka Hiromu  東京大学, 大学院数理科学研究科, 准教授 (50724514)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords双有理幾何 / 極小モデル理論 / 正標数 / ファノ多様体 / 代数幾何学 / 双有理幾何学 / 極小モデル
Outline of Final Research Achievements

I studied minimal model program in positive characteristic. In particular, I establish a boundedness result for del Pezzo surfaces over imperfect fields. Recently Yobuko has introduced quasi-F-splitting. I study quasi-F-splitting by the view point of minimal model program. I established a vanishing theorem for toric varieties. I generalise, under suitable setting, a classical Bertini theorem to the case when the base ring is excellent.

Academic Significance and Societal Importance of the Research Achievements

代数幾何学は可換環論や複素多様体論などと密接に関連した分野であり、歴史的には整数論とも互いに刺激し合いながら発展を遂げてきた。純粋数学の外でも、暗号理論や物理学などへの応用を持つ分野でもある。従って、代数幾何学の基礎理論である極小モデル理論を確立する事は重要である。本研究では、正標数における極小モデル理論に関する結果を確立した。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (39 results)

All 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (20 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 20 results) Presentation (18 results) (of which Int'l Joint Research: 14 results,  Invited: 18 results)

  • [Int'l Joint Research] Imperial College London(英国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] ON DEL PEZZO FIBRATIONS IN POSITIVE CHARACTERISTIC2022

    • Author(s)
      Bernasconi Fabio、Tanaka Hiromu
    • Journal Title

      Journal of the Institute of Mathematics of Jussieu

      Volume: 21 Issue: 1 Pages: 197-239

    • DOI

      10.1017/s1474748020000067

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Vanishing theorems of Kodaira type for Witt canonical sheaves2022

    • Author(s)
      Tanaka Hiromu
    • Journal Title

      Selecta Mathematica

      Volume: 28 Issue: 1 Pages: 1-50

    • DOI

      10.1007/s00029-021-00736-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Invariants of algebraic varieties over imperfect fields2021

    • Author(s)
      Tanaka Hiromu
    • Journal Title

      Tohoku Mathematical Journal

      Volume: 73 Issue: 4 Pages: 471-538

    • DOI

      10.2748/tmj.20200611

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] On p‐power freeness in positive characteristic2021

    • Author(s)
      Tanaka Hiromu
    • Journal Title

      Mathematische Nachrichten

      Volume: 294 Issue: 10 Pages: 1968-1976

    • DOI

      10.1002/mana.202000118

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Abundance theorem for surfaces over imperfect fields2020

    • Author(s)
      Tanaka Hiromu
    • Journal Title

      Mathematische Zeitschrift

      Volume: 295 Issue: 1-2 Pages: 595-622

    • DOI

      10.1007/s00209-019-02345-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Relative semi‐ampleness in positive characteristic2020

    • Author(s)
      Cascini Paolo、Tanaka Hiromu
    • Journal Title

      Proceedings of the London Mathematical Society

      Volume: 121 Issue: 3 Pages: 617-655

    • DOI

      10.1112/plms.12323

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pathologies on Mori fibre spaces in positive characteristic2020

    • Author(s)
      Tanaka Hiromu
    • Journal Title

      Annali della Scuola Normale Superiore di Pisa, Classe di Scienze

      Volume: 20 Pages: 1113-1134

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Witt Nadel vanishing theorem for threefolds2020

    • Author(s)
      Yusuke Nakamura, Hiromu Tanaka
    • Journal Title

      Compos. Math.

      Volume: 156 Issue: 3 Pages: 435-475

    • DOI

      10.1112/s0010437x1900770x

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Infinitely generated symbolic Rees algebras over finite fields2019

    • Author(s)
      Sannai Akiyoshi、Tanaka Hiromu
    • Journal Title

      Algebra & Number Theory

      Volume: 13 Issue: 8 Pages: 1879-1891

    • DOI

      10.2140/ant.2019.13.1879

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Rational points on log Fano threefolds over a finite field2019

    • Author(s)
      Yoshinori Gongyo, Yusuke Nakamura, Hiromu Tanaka
    • Journal Title

      J. Eur. Math. Soc. (JEMS)

      Volume: 21 Issue: 12 Pages: 3759-3795

    • DOI

      10.4171/jems/913

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Purely log terminal threefolds with non-normal centres in characteristic two2019

    • Author(s)
      Paolo Cascini, Hiromu Tanaka
    • Journal Title

      American Journal of Mathematics(印刷中)

      Volume: -

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Infinite dimensional excellent rings2019

    • Author(s)
      Hiromu Tanaka
    • Journal Title

      Communications in Algebra

      Volume: 47 Issue: 2 Pages: 482-489

    • DOI

      10.1080/00927872.2018.1477952

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Infinitely generated symbolic Rees algebras over finite fields2019

    • Author(s)
      Akiyoshi Sannai, Hiromu Tanaka
    • Journal Title

      Algebra and Number Theory(印刷中)

      Volume: -

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pathologies on Mori fibre spaces in positive characteristic2019

    • Author(s)
      Tanaka Hiromu
    • Journal Title

      Annali della Scuola Normale Superiore di Pisa - Classe di Scienze(印刷中)

      Volume: - Pages: 1113-1134

    • DOI

      10.2422/2036-2145.201712_007

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Minimal model program for log canonical threefolds in positive characteristic2019

    • Author(s)
      Kenta Hashizume, Yusuke Nakamura, Hiromu Tanaka
    • Journal Title

      Mathematical Research Letters(印刷中)

      Volume: -

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Zariskian adic spaces2018

    • Author(s)
      Hiromu Tanaka
    • Journal Title

      Kodai Mathematical Journal

      Volume: 41 Issue: 3 Pages: 652-695

    • DOI

      10.2996/kmj/1540951258

    • NAID

      130007506525

    • ISSN
      0386-5991, 1881-5472
    • Year and Date
      2018-10-31
    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Minimal model program for excellent surfaces2018

    • Author(s)
      Hiromu Tanaka
    • Journal Title

      Annales de l'Institut Fourier (Grenoble)

      Volume: 68 Pages: 345-376

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Smooth rational surfaces violating Kawamata?Viehweg vanishing2018

    • Author(s)
      Paolo Cascini, Hiromu Tanaka
    • Journal Title

      European Journal of Mathematics

      Volume: 4 Issue: 1 Pages: 162-176

    • DOI

      10.1007/s40879-016-0127-z

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Klt del Pezzo surfaces which are not globally F-split2018

    • Author(s)
      Paolo Cascini Paolo, Hiromu Tanaka, Jakub Witaszek
    • Journal Title

      International Mathematics Research Notices

      Volume: 7 Pages: 2135-2155

    • DOI

      10.1093/imrn/rnw300

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Behavior of canonical divisors under purely inseparable base changes2018

    • Author(s)
      Hiromu Tanaka
    • Journal Title

      Journal fur die reine und angewandte Mathematik (Crelles Journal)

      Volume: 744 Issue: 744 Pages: 237-264

    • DOI

      10.1515/crelle-2015-0111

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] On quasi-F-splitting2022

    • Author(s)
      田中公
    • Organizer
      Algebraic Geometry in East Asia
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 極小モデル理論について2022

    • Author(s)
      田中公
    • Organizer
      日本数学会、2022年秋季総合分科会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] On Mori fibre spaces in positive characteristic2021

    • Author(s)
      田中公
    • Organizer
      Workshop on birational geometry
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Pathological examples in minimal model program of positive characeteristic2021

    • Author(s)
      田中公
    • Organizer
      Arithmetic algebraic geometry and mathematical physics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Pathological examples in minimal model program of positive characeteristic2021

    • Author(s)
      田中公
    • Organizer
      National Taiwan University-The University of Tokyo, 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On Mori fibre spaces in positive characteristic2021

    • Author(s)
      田中公
    • Organizer
      Zoom in Algebraic Geometry
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Del Pezzo fibrations in positive characteristic2019

    • Author(s)
      田中公
    • Organizer
      Del Pezzo surfaces and Fano varieties
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On Mori fibre spaces in positive characteristic2019

    • Author(s)
      田中公
    • Organizer
      ファノ多様体及び関連する代数幾何学
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] On Mori fibre spaces in positive characteristic2019

    • Author(s)
      田中公
    • Organizer
      Tokyo-Seoul Conference in Mathematics 2019 - Algebraic Geometry -
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Rational points and minimal model program in positive characteristic2019

    • Author(s)
      田中公
    • Organizer
      RIMS Symposia: Rational Points on Higher Dimensional Varieties
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On Mori fibre spaces in positive characteristic2019

    • Author(s)
      田中公
    • Organizer
      Algebraic and Arithmetic Geometry Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 正標数の3次元 klt 特異点の強 F-正則性について2019

    • Author(s)
      田中公
    • Organizer
      特異点論月曜セミナー
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] On log Fano varieties in positive characteristic2019

    • Author(s)
      田中公
    • Organizer
      London-Tokyo Workshop in Birational Geometry
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Rational points for Fano varieties over finite fields and vanishing theorems for Witt vector cohomologies2019

    • Author(s)
      田中公
    • Organizer
      東北大学代数幾何セミナー
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] On varieties of Fano type in positive characteristic2019

    • Author(s)
      田中公
    • Organizer
      Modern Algebraic Geometry
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On minimal model program in positive characteristic2019

    • Author(s)
      田中公
    • Organizer
      代数幾何学城崎シンポジウム
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On varieties of Fano type in positive characteristic2019

    • Author(s)
      田中公
    • Organizer
      2018 Fall Program of Moduli Spaces and Varieties
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On Witt analogues of the Kodaira vanishing theorem2019

    • Author(s)
      田中公
    • Organizer
      Algebraic Geometry in Positive Characteristic and Related Topics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2018-04-23   Modified: 2024-01-30  

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