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Research on dynamical systems of K3 surfaces in terms of rational surfaces

Research Project

Project/Area Number 19K03544
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 12010:Basic analysis-related
Research InstitutionOkayama University

Principal Investigator

Uehara Takato  岡山大学, 環境生命自然科学学域, 准教授 (40613261)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords力学系 / 有理曲面 / K3曲面 / エントロピー / 力学系的次数 / 複素曲面 / 双有理写像 / ジュリア集合
Outline of Research at the Start

本研究で遂行する研究計画は次の4点である: (a) これまでの研究で構成したK3曲面の族を用いて, K3格子上の写像に対応するK3曲面上の写像の実現可能性を調べる. (b) これまでの研究で構成したK3曲面の族の適用可能範囲を広げる. (c) 複数個の Siegel 円板を許容する写像を具体的に構成する. (d) 写像に対する最大エントロピー測度を解析する.

Outline of Final Research Achievements

The aim of this research is to study dynamical systems given by bimeromorphic self-maps on two dimensional compact complex manifolds. Here we focus on two classes of two dimensional complex manifolds: rational surfaces and K3 surfaces. We determine the structure of the set of dynamical degrees of birational maps on rational surfaces. We also show the existence of 18-dimensional family of projective K3 surfaces among the family given by the gluing construction.

Academic Significance and Societal Importance of the Research Achievements

有理曲面においてはどのくらい豊富に双有理写像による力学系が存在するか知られていなかったが, 本研究成果により, 力学系的次数を介して豊富に力学系が存在することが示された. また, K3曲面においてはトレリの定理を用いて力学系の存在については調べられているが, 周期写像の記述が難しいため, 力学系の具体的記述が一般には困難である. そのため, K3曲面の張り合わせ構成の研究は, 力学系の具体的な研究の可能性を示唆しており, 重要であると考えられる.

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (17 results)

All 2024 2023 2022 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (13 results) (of which Int'l Joint Research: 7 results,  Invited: 9 results)

  • [Journal Article] Siegel disks on rational surfaces2023

    • Author(s)
      Uehara Takato
    • Journal Title

      Rendiconti Lincei, Matematica e Applicazioni

      Volume: 34 Issue: 1 Pages: 235-263

    • DOI

      10.4171/rlm/1005

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A gluing construction of projective K3 surfaces2022

    • Author(s)
      Koike Takayuki、Uehara Takato
    • Journal Title

      Epijournal de Geometrie Algebrique

      Volume: Volume 6 Pages: 1-15

    • DOI

      10.46298/epiga.2022.volume6.8504

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A gluing construction of projective K3 surfaces2022

    • Author(s)
      T. Koike and T. Uehara
    • Journal Title

      Epijournal de Geometrie Algebrique

      Volume: -

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Automorphism groups of rational surfaces2020

    • Author(s)
      Uehara Takato
    • Journal Title

      Journal of Pure and Applied Algebra

      Volume: 224 Issue: 1 Pages: 411-422

    • DOI

      10.1016/j.jpaa.2019.05.013

    • NAID

      120007034440

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Dynamical spectrum on projective surfaces2024

    • Author(s)
      T. Uehara
    • Organizer
      Workshop on Dynamics in Arithmetic and Complex Geometry and its Applications
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Dynamical degrees of birational mappings on projective surfaces2024

    • Author(s)
      上原崇人
    • Organizer
      晴ればれ岡山代数幾何 学シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] On the dynamical spectrum on projective surfaces2024

    • Author(s)
      上原崇人
    • Organizer
      佐賀大学ワークショップ
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] On dynamical degrees of birational mappings2023

    • Author(s)
      上原崇人
    • Organizer
      東京大学複素解析幾何セミナー
    • Related Report
      2023 Annual Research Report
  • [Presentation] On dynamical degrees of birational mappings2023

    • Author(s)
      T. Uehara
    • Organizer
      French-Japanese Workshop of Real and Complex Dynamics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 射影曲面上の双有理写像による力学系スペクトルについて2023

    • Author(s)
      上原崇人
    • Organizer
      京都力学系セミナー
    • Related Report
      2023 Annual Research Report
  • [Presentation] On a gluing construction of K3 surfaces2022

    • Author(s)
      上原崇人
    • Organizer
      2022年度城崎代数幾何学シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] On dynamical degrees of birational mappings2022

    • Author(s)
      T. Uehara
    • Organizer
      RIMS Workshop Complex Dynamics and Related Topics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] A gluing construction of projective K3 surfaces2021

    • Author(s)
      T. Uehara
    • Organizer
      Aspects of Complex Dynamics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On maximal entropy measures for birational maps on compact complex surfaces2020

    • Author(s)
      Takato Uehara
    • Organizer
      Complex Dynamics and Related Topics
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Siegel disks for rational surface automorphisms with positive entropy2019

    • Author(s)
      Takato Uehara
    • Organizer
      Geometric Complex Analysis on Foliations and Dynamics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A gluing construction of K3 surfaces2019

    • Author(s)
      Takato Uehara
    • Organizer
      Differential Systems: from theory to computer mathematics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Dynamical degrees of birational maps on complex surfaces2019

    • Author(s)
      Takato Uehara
    • Organizer
      Bifurcation and stability in complex dynamics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-04-18   Modified: 2025-01-30  

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