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Construction of cross-sectional theory on those conformally invariant random fields which extend SLE

Research Project

Project/Area Number 22K20341
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0201:Algebra, geometry, analysis, applied mathematics,and related fields
Research InstitutionKyushu University

Principal Investigator

Murayama Takuya  九州大学, 数理学研究院, 助教 (70963974)

Project Period (FY) 2022-08-31 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords小松・レヴナー微分方程式 / 縢りブラウン運動 / レヴナー微分方程式 / シュラム・レヴナー発展 / レヴナー方程式 / 小松・レヴナー方程式 / 多重連結領域 / 小松・レブナー方程式
Outline of Research at the Start

統計物理における2次元臨界現象を記述する道具として,SLE(シュラム・レヴナー発展)
なる確率場が知られている.SLEは,単連結な平面領域に定義される「共形不変な」ランダム曲線である.従前,それを多重連結領域へと拡張する試みが散発的になされてきた.本研究の目的は,それらの試みを統合する横断的理論の構築である.4つの異なる既存理論を関係付け,臨界現象に相当する共形不変確率場の構造の解明を目指す.

Outline of Final Research Achievements

Aiming at deep analysis of Schramm-Loewner evolution (SLE), we implemented research from perspectives of probability theory and complex analysis. Our main interest was how to extend the mathematical definition of SLE from simply connected planar domains to more general domains. In that direction, we published a book with two co-authors and made the foundation of our study clearer and solider. In another direction, we made effort to increase opportunities of research communication and, as a result, recognized new applications and problems on the Loewner differential equations.

Academic Significance and Societal Importance of the Research Achievements

SLEは統計物理における2次元の古典スピン系の臨界現象を記述する上で重要とされる確率過程である.複素解析におけるレヴナー微分方程式をランダムなブラウン運動で駆動して得られることが特徴であり,数理物理への寄与という意味でも,確率論・函数論の非自明な関係の開拓という意味でも興味深い.特に本研究は,レヴナー微分方程式の適用範囲を拡げたり,古典的に知られた設定を新たな視点で捉え直したりといった,基礎理論への寄与の点で意義を持つ.

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (9 results)

All 2024 2023 2022 Other

All Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results) Book (1 results) Remarks (1 results)

  • [Presentation] multi-finger Loewner微分方程式とmultiple SLEに対する時間変更の方法2024

    • Author(s)
      村山拓也
    • Organizer
      関西大学確率論研究会2024
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] multi-finger Loewner微分方程式とmultiple SLEに対する時間変更の方法2024

    • Author(s)
      村山拓也
    • Organizer
      福岡複素解析シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Loewner chains and evolution families on parallel slit half-planes2023

    • Author(s)
      Takuya Murayama
    • Organizer
      Stochastic Processes and Related Fields
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 非可換Levy過程・加法過程と正則函数の半群・Loewner鎖2023

    • Author(s)
      村山拓也
    • Organizer
      ランダム行列と自由確率論 workshop 2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Some recent results on chordal Komatu-Loewner equation2023

    • Author(s)
      Takuya Murayama
    • Organizer
      Geometric Function Theory in Several Complex Variables and Complex Banach Spaces
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Loewner方程式について2022

    • Author(s)
      村山拓也
    • Organizer
      第56回函数論サマーセミナー
    • Related Report
      2022 Research-status Report
  • [Presentation] Loewner chains and evolution families on parallel slit half-planes2022

    • Author(s)
      村山拓也
    • Organizer
      「等角写像論・値分布論」合同研究集会
    • Related Report
      2022 Research-status Report
  • [Book] Stochastic Komatu-Loewner Evolutions2023

    • Author(s)
      Zhen-Qing Chen, Masatoshi Fukushima, Takuya Murayama
    • Total Pages
      256
    • Publisher
      World Scientific
    • ISBN
      9789811262784
    • Related Report
      2022 Research-status Report
  • [Remarks] Takuya Murayama

    • URL

      https://sites.google.com/view/tmurayama-math/ja

    • Related Report
      2023 Annual Research Report 2022 Research-status Report

URL: 

Published: 2022-09-01   Modified: 2025-01-30  

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