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Density Theorems of Closed Geodesics for Nilpotent Extensions and Asymptotics of Heat Kernels

Research Project

Project/Area Number 18K03282
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 11020:Geometry-related
Research InstitutionKyushu University

Principal Investigator

KATSUDA ATSUSHI  九州大学, 数理学研究院, 教授 (60183779)

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 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
KeywordsFloquet-Bloch / Asymptotic formulas / Heisenberg / heat kernel / closed geodesic / ハイゼンベルグ群 / 離散べき零群 / 素測地線 / 熱核 / 漸近展開 / 漸近挙動 / 素閉測地線 / 密度定理 / リッチ曲率 / キリングベクトル場
Outline of Final Research Achievements

Floquet-Bloch theory is a fundamental tools of solid state physics. We have established its generalization to Heisenberg group. As its applications, we proved long time asymptotic formula of heat kernels on covering spaces and geometric analogue of the Chebotarev density theorem for Heisenberg extensions.

Academic Significance and Societal Importance of the Research Achievements

Floquet-Bloch理論は通常無限アーベル群の対称性を持つ物質におけるシュレディンガー作用のスペクトルの構造の解析に用いられるもので,バンド理論とも呼ばれ,物性物理での基本ツールである.これまでその非可換拡張は非可換離散群は非I型と呼ばれるクラスに属するため,確立されていなかった.今回最も単純な場合ではあるが,最も基本的なHeisenberg群に対して確立したことは,新たな方向への第一歩となると考えている.

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

    (8 results)

All 2022 2021 2020 2019

All Journal Article (2 results) (of which Open Access: 1 results,  Peer Reviewed: 1 results) Presentation (6 results) (of which Invited: 6 results)

  • [Journal Article] An extension of the Bloch-Floquet theory to the Heisenberg group and its applications to asymptotic problems for heat kernels and prime closed geodesics2022

    • Author(s)
      勝田 篤
    • Journal Title

      数理解析研究所講究禄

      Volume: 2201 Pages: 59-75

    • NAID

      120007170963

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] A rigidity theorem for Killing vector fields on compact manifolds with almost nonpositive Ricci curvature2021

    • Author(s)
      Katsuda, Atsushi; Nakamura, Takuya
    • Journal Title

      Proc. Amer. Math. Soc.

      Volume: 149 Issue: 3 Pages: 1215-1224

    • DOI

      10.1090/proc/14742

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] An extension of the Bloch-Floquet theory to the Heisenberg group and its applications to geometric Chebotarev density theorems andlong time asymptotics of the heat kernels2022

    • Author(s)
      勝田 篤
    • Organizer
      福岡大学 微分幾何研究集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Nash の埋め込み定理の原証明とその応用可能性2022

    • Author(s)
      勝田 篤
    • Organizer
      研究集会「測地線及び関連する諸問題」
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Riemann の教授資格取得講演と現代のリーマン幾何学2022

    • Author(s)
      勝田 篤
    • Organizer
      研究会「直観幾何学 2022」
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 素数と素閉測地線ーDirichlet,Riemann,Selbergー2022

    • Author(s)
      勝田 篤
    • Organizer
      研究会「直観幾何学 2022」
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 閉測地線, 熱核, ハイゼンベルグ群2020

    • Author(s)
      勝田 篤
    • Organizer
      研究集会「測地線及び関連する諸問題」
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Closed geodesics and heat kernels for Heisenberg extensions2019

    • Author(s)
      勝田 篤
    • Organizer
      研究集会「 多様体上の微分方程式 」金沢シリーズ第18回
    • Related Report
      2019 Research-status Report
    • Invited

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

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