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2017 Fiscal Year Research-status Report

グロモフ・ハウスドルフ収束と幾何解析

Research Project

Project/Area Number 16K17585
Research InstitutionTohoku University

Principal Investigator

本多 正平  東北大学, 理学研究科, 准教授 (60574738)

Project Period (FY) 2016-04-01 – 2020-03-31
KeywordsRicci曲率 / Gromov-Hausdorff収束 / Laplacian
Outline of Annual Research Achievements

Finsler多様体を典型例として含む非線形の設定で,測度付きGromov-Hausdorff収束に関してLaplacianの固有値が連続に振舞うことをLuigi Ambrosio氏(Scuola Normale Superiore)とJacobs Portegies氏(Eindhoven University)との共同研究で証明した.これは高次の固有値をどのように捕まえるかが鍵であり,それを Lusternik-Schnirelmann categoryと関係するKrasnoselskii種数を用いて実現した.それらを一つの論文にまとめて雑誌Calculus of Variations and Partial Differential Equationsに投稿し,アクセプトされた.また前年度まで行っていた研究結果の論文(微分形式やテンソル場に対するスペクトル収束,関数の局所スペクトル収束,Weylの漸近公式,特異空間上の向け付け可能性とその応用など)は当該年度中までに全てアクセプトされた.また,熱核による測度付き距離空間の埋め込み問題を推し進め,論文の最終チェック段階に入った.それによって,熱核が与えられたRiemann計量をつかまることがわかり,また,与えられたRiemann計量のよい摂動をその熱核を用いて与えることができた.そのよい摂動ではRiemann計量は測度付きGromov-Hausdorff収束位相に関して非常によく振舞うこともわかった.これらの証明においては上で述べた論文の成果(特に局所スペクトル収束のもの)が本質的に用いられる.今後はその摂動の応用,特に特異空間上の自然なRiemann計量の正則性を考えていく.この最終チェックが終わり次第雑誌に投稿する予定である.

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

BV関数の振る舞いなど予定していたいくつかの目標はすでに達成され,当該年度で得られた非線形Laplacianのスペクトル収束,昨年度得られた局所スペクトル収束,そして現在推し進めている熱核による埋め込み問題など,予想していた方向とは異なる方向にも研究が大きく進んだため.

Strategy for Future Research Activity

熱核の埋め込み問題の論文の応用を考える,種々のスペクトル収束の応用を考える,といったことを行う.

Causes of Carryover

代表者の講演に関わるほとんど全ての出張は頭脳循環プロジェクトのサポートを受けていたため.

  • Research Products

    (27 results)

All 2018 2017

All Journal Article (8 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (19 results) (of which Int'l Joint Research: 10 results,  Invited: 19 results)

  • [Journal Article] Elliptic PDEs on compact Ricci limit spaces and applications2018

    • Author(s)
      Shouhei Honda
    • Journal Title

      Memoirs of the American Mathematical Society

      Volume: 印刷中 Pages: -

    • Peer Reviewed
  • [Journal Article] Local spectral convergence in RCD^*(K, N)-spaces,2018

    • Author(s)
      Luigi Ambrosio and Shouhei Honda
    • Journal Title

      Nonlinear Analysis

      Volume: 印刷中 Pages: -

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Continuity of nonlinear eigenvalues in CD(K, ∞) spaces with respect to measured Gromov-Hausdorff convergence2018

    • Author(s)
      Luigi Ambrosio, Shouhei Honda and Jacobs Portegies
    • Journal Title

      Calculus of Variation and Partial Differential Equations

      Volume: 印刷中 Pages: -

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Short-time behavior of the heat kernel and Weyl’s law on RCD^* (K, N)-spaces2018

    • Author(s)
      Luigi Ambrosio, Shouhei Honda and David Tewodrose
    • Journal Title

      Annals of Global Analysis and Geometry

      Volume: 53 Pages: 97-119

    • DOI

      https://doi.org/10.1007/s10455-017-9569-x

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ricci curvature and orientability2017

    • Author(s)
      Shouhei Honda
    • Journal Title

      Calculus of Variation and Partial Differential Equations

      Volume: 印刷中 Pages: -

    • Peer Reviewed
  • [Journal Article] Spectral convergence under bounded Ricci curvature2017

    • Author(s)
      Shouhei Honda
    • Journal Title

      Journal of Functional Analysis

      Volume: 273 Pages: 1577-1662

    • DOI

      https://doi.org/10.1016/j.jfa.2017.05.009

    • Peer Reviewed
  • [Journal Article] Fano-Ricci limit spaces and spectral convergence2017

    • Author(s)
      Akito Futaki, Shouhei Honda and Shunsuke Saito
    • Journal Title

      Asian Journal of Mathematics

      Volume: 21 Pages: 1015-1062

    • DOI

      http://dx.doi.org/10.4310/AJM.2017.v21.n6.a2

    • Peer Reviewed
  • [Journal Article] New stability results for sequences of metric measure spaces with uniform Ricci bounds from below2017

    • Author(s)
      Luigi Ambrosio and Shouhei Honda
    • Journal Title

      Measure Theory in Non-Smooth Spaces, De Gruyter Press, edited by Nicola Gigli

      Volume: - Pages: 1-51

    • DOI

      https://doi.org/10.1515/9783110550832-001

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Weyl's law on RCD spaces2018

    • Author(s)
      Shouhei Honda
    • Organizer
      Conference on Metrics and Measures
    • Int'l Joint Research / Invited
  • [Presentation] 関数を熱流で流すと曲率が見える2018

    • Author(s)
      本多正平
    • Organizer
      東北大学 談話会
    • Invited
  • [Presentation] Spectral properties on metric measure spaces with Ricci bounds from below2018

    • Author(s)
      Shouhei Honda
    • Organizer
      The 25th Southern California Geometric Analysis Seminar
    • Int'l Joint Research / Invited
  • [Presentation] Continuous quantities with respect to measured Gromov-Hausdorff convergence2018

    • Author(s)
      Shouhei Honda
    • Organizer
      The UC-Berkeley Differential Geometry Seminar
    • Int'l Joint Research / Invited
  • [Presentation] 空間とPDEの収束2018

    • Author(s)
      本多正平
    • Organizer
      第一回新人セミナー
    • Invited
  • [Presentation] 局所スペクトル収束とその応用2018

    • Author(s)
      本多正平
    • Organizer
      リーマン幾何と幾何解析
    • Invited
  • [Presentation] New stability results for sequences of metric measure spaces with uniform Ricci bounds from below2017

    • Author(s)
      Shouhei Honda
    • Organizer
      保存則を持つ偏微分方程式に対する解の特異性および漸近挙動の研究
    • Int'l Joint Research / Invited
  • [Presentation] 空間が近いと色々近い2017

    • Author(s)
      本多正平
    • Organizer
      熊本大学 談話会
    • Invited
  • [Presentation] Local spectral convergence in RCD^*(K, N)-spaces2017

    • Author(s)
      Shouhei Honda
    • Organizer
      Geometric Analysis on smooth and non-smooth spaces
    • Int'l Joint Research / Invited
  • [Presentation] New stability results for sequences of metric measure spaces with uniform Ricci bounds from below2017

    • Author(s)
      Shouhei Honda
    • Organizer
      Trends in Modern Geometry
    • Int'l Joint Research / Invited
  • [Presentation] Ricci 曲率が下に有界な空間族に対する様々な安定性と漸近解析2017

    • Author(s)
      本多正平
    • Organizer
      幾何学シンポジウム(基調講演)
    • Invited
  • [Presentation] New stability results for sequences of metric measure spaces with uniform Ricci bounds from below2017

    • Author(s)
      Shouhei Honda
    • Organizer
      第 3 回日中幾何学研究集会
    • Int'l Joint Research / Invited
  • [Presentation] New stability results for sequences of metric measure spaces with uniform Ricci bounds from below2017

    • Author(s)
      Shouhei Honda
    • Organizer
      The third Spanish-Japanese workshop on Differential Geometry
    • Int'l Joint Research / Invited
  • [Presentation] RCD 空間上の Weyl の法則2017

    • Author(s)
      本多正平
    • Organizer
      首都大学東京 幾何学セミナー
    • Invited
  • [Presentation] RCD 空間上の Weyl の法則2017

    • Author(s)
      本多正平
    • Organizer
      第 2 回宮崎幾何学セミナー
    • Invited
  • [Presentation] RCD 空間上の Weyl の法則2017

    • Author(s)
      本多正平
    • Organizer
      名古屋大学 幾何学セミナー
    • Invited
  • [Presentation] Recent developments on metric measure spaces with uniform Ricci bounds from below2017

    • Author(s)
      Shouhei Honda
    • Organizer
      2017 Chongqing Workshop on Differential Geometry
    • Int'l Joint Research / Invited
  • [Presentation] RCD 空間上の Weyl の法則2017

    • Author(s)
      本多正平
    • Organizer
      大阪大学 幾何学セミナー
    • Invited
  • [Presentation] Heat flow and Ricci curvature2017

    • Author(s)
      Shouhei Honda
    • Organizer
      Geometric Analysis in Geometry and Topology
    • Int'l Joint Research / Invited

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Published: 2018-12-17  

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