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New perspectives on the singularity theory

Research Project

Project/Area Number 15K17510
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Algebra
Research InstitutionTohoku University (2018)
Osaka University (2015-2017)

Principal Investigator

Yasuda Takehiko  東北大学, 理学研究科, 教授 (30507166)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords特異点 / マッカイ対応 / 整数論 / 正標数 / 食い違い係数 / モジュライ空間 / モチヴィック・セール不変量 / 乗数イデアル / 野性マッカイ対応 / ガロア拡大
Outline of Final Research Achievements

We have obtained new perspectives and theorems about singularities of spaces in positive or mixed characteristics and about roles played by singularities in the number theory. More specifically, we have obtained: (1) perspectives on relation between two conjectures in the number theory, Manin's conjecture and Malle's conjecture, and the role that singularities play there, (2) understanding the structure of wild quotient singularities thanks to development of the wild McKay correspondence, (3) formulation of Vojta's conjecture form the viewpoint of singularities.

Academic Significance and Societal Importance of the Research Achievements

整数論の代数幾何を用いた研究は数論幾何という大きな分野となっているが、特異点の役割は軽視されてきたように感じられる。本研究により、特異点を通して整数論を見たり、逆に整数論を特異点研究に応用するなどの新しい知見や手法が得られた。また、本研究には一部、数理物理からのアイデアも応用されており、複数分野の境界領域における発展ということができる。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (16 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (3 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results) Presentation (7 results) (of which Int'l Joint Research: 6 results,  Invited: 7 results) Funded Workshop (1 results)

  • [Int'l Joint Research] ベルリン自由大学(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ベルリン自由大学(ドイツ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ベルリン・フンボルト大学/ベルリン自由大学(ドイツ)

    • Related Report
      2015 Research-status Report
  • [Journal Article] Discrepancies of p-cyclic quotient varieties2019

    • Author(s)
      Takehiko Yasuda
    • Journal Title

      J. Math. Sci. Univ. Tokyo

      Volume: 26 Pages: 1-14

    • NAID

      120006814125

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Vojta's conjecture, singularities and multiplier-type ideals2018

    • Author(s)
      Yasuda Takehiko
    • Journal Title

      Kodai Mathematical Journal

      Volume: 41 Issue: 3 Pages: 566-578

    • DOI

      10.2996/kmj/1540951254

    • NAID

      130007506535

    • ISSN
      0386-5991, 1881-5472
    • Year and Date
      2018-10-31
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mass formulas for local Galois representations and quotient singularities II: Dualities and resolution of singularities2017

    • Author(s)
      Wood Melanie、Yasuda Takehiko
    • Journal Title

      Algebra & Number Theory

      Volume: 11 Issue: 4 Pages: 817-840

    • DOI

      10.2140/ant.2017.11.817

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The wild McKay correspondence and p-adic measures2017

    • Author(s)
      Takehiko Yasuda
    • Journal Title

      Journal of the European Mathematical Society

      Volume: 19 Issue: 12 Pages: 3709-3743

    • DOI

      10.4171/jems/751

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Motivic Serre invariants modulo the square of L-12017

    • Author(s)
      Yasuda Takehiko
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 146 Issue: 2 Pages: 547-554

    • DOI

      10.1090/proc/13780

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] The motivic version of Serre's mass formula2018

    • Author(s)
      Takehiko Yasuda
    • Organizer
      Higher dimensional algebraic geometry
    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Moduli of formal torsors2018

    • Author(s)
      Takehiko Yasuda
    • Organizer
      Singularities and Algebraic Geometry
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Rational points on quotient varieties2017

    • Author(s)
      Takehiko Yasuda
    • Organizer
      2017 Atkin Workshop: Height zeta functions
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] The wild McKay correspondence2017

    • Author(s)
      Takehiko Yasuda
    • Organizer
      Hakodate workshop on arithmetic geometry 2017
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Equisingularities and dualities of local field masses2017

    • Author(s)
      Takehiko Yasuda
    • Organizer
      The 5th Franco-Japanese-Vietnamese Symposium on Singularities
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] The McKay correspondence and mass formulas for local Galois representations2017

    • Author(s)
      Takehiko Yasuda
    • Organizer
      Local zeta functions and the arithmetic of moduli spaces
    • Place of Presentation
      Johns Hopkins University(アメリカ合衆国)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Vojta’s conjecture and singularities2016

    • Author(s)
      Takehiko Yasuda
    • Organizer
      Arithmetic and Algebraic Geometry
    • Place of Presentation
      東京大学
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Funded Workshop] 正標数の特異点、基本群、分岐2017

    • Related Report
      2017 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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