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2022 Fiscal Year Annual Research Report

Multifaceted studies on dynamical problems in the calculus of variations using geometric measure theory

Research Project

Project/Area Number 18H03670
Research InstitutionTokyo Institute of Technology

Principal Investigator

利根川 吉廣  東京工業大学, 理学院, 教授 (80296748)

Co-Investigator(Kenkyū-buntansha) 高坂 良史  神戸大学, 海事科学研究科, 教授 (00360967)
石井 克幸  神戸大学, 海事科学研究科, 教授 (40232227)
三浦 達哉  東京工業大学, 理学院, 准教授 (40838744)
高棹 圭介  京都大学, 理学研究科, 准教授 (50734472)
可香谷 隆  室蘭工業大学, 大学院工学研究科, 准教授 (60814431)
小野寺 有紹  東京工業大学, 理学院, 准教授 (70614999)
Project Period (FY) 2018-04-01 – 2023-03-31
KeywordsMean curvature flow / Calculus of variations / Geometric measure theory / Minimal surface / Geometric analysis
Outline of Annual Research Achievements

主な研究成果として次を挙げる.
Brakkeの正則性定理として知られていた一般Brakke流に対する正則性定理は,空間のみではなく時間方向にも内部における正則性結果であった.一方でパラボリックの問題に特有な最終時間までの正則性を保証する定理が自然に期待されていたのであるが,それをKasai-Tonegawa(2014年)の結果を改良することにより,証明した(Stuvardとの共同研究).これは対象のBrakke流が滑らかな平均曲率流の極限として得られる特別な場合にはWhiteの正則性定理として知られていたもので,それを(特別ではない)一般Brakke流,さらに一般外力項を付加した平均曲率流に拡張した結果となっている.結果は最も一般的な形で得られており,Brakkeの正則性定理を完全な形で証明したことになる.論文は査読中である.また主にヨーロッパで研究成果の発表を若手研究者向けに多数行い,未来の研究環境の醸成を進めた.

Research Progress Status

令和4年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和4年度が最終年度であるため、記入しない。

  • Research Products

    (44 results)

All 2023 2022 Other

All Int'l Joint Research (1 results) Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (34 results) (of which Int'l Joint Research: 22 results,  Invited: 32 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] University of Milan(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      University of Milan
  • [Journal Article] Classification theory for planar p-elasticae2023

    • Author(s)
      Tatsuya Miura
    • Journal Title

      RIMS kokyuroku

      Volume: 2239 Pages: 60~70

    • Peer Reviewed / Open Access
  • [Journal Article] Mean curvature flow for generating discrete surfaces with piecewise constant mean curvatures2023

    • Author(s)
      Kazuki Hayashi, Yoshiki Jikumaru, Makoto Ohsaki, Takashi Kagaya and Yohei Yokosuka
    • Journal Title

      Computer Aided Geometric Design

      Volume: 101, Art.102169 Pages: 1~18

    • DOI

      10.1016/j.cagd.2023.102169

    • Peer Reviewed / Open Access
  • [Journal Article] Long time behavior for a curvature flow of networks related to grain boundary motion with the effect of lattice misoriantations2023

    • Author(s)
      Takashi Kagaya , Masashi Mizuno and Keisuke Takasao
    • Journal Title

      ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE

      Volume: - Pages: -

    • DOI

      10.2422/2036-2145.202112_009

    • Peer Reviewed
  • [Journal Article] Linear stability analysis of overdetermined problems with non-constant data2023

    • Author(s)
      Michiaki Onodera
    • Journal Title

      Mathematics in Engineering

      Volume: 5, Iss.3 Pages: 1~18

    • DOI

      10.3934/mine.2023048

    • Peer Reviewed / Open Access
  • [Journal Article] A diameter bound for compact surfaces and the Plateau-Douglas problem2022

    • Author(s)
      Tatsuya Miura
    • Journal Title

      ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE

      Volume: 23 Pages: 1707~1721

    • DOI

      10.2422/2036-2145.202011_006

    • Peer Reviewed
  • [Journal Article] Quasiconvexity preserving property for fully nonlinear nonlocal parabolic equations2022

    • Author(s)
      Takashi Kagaya, Qing Liu and Hiroyoshi Mitake
    • Journal Title

      Nonlinear Differential Equations and Applications NoDEA

      Volume: 30, Art.13 Pages: 1~28

    • DOI

      10.1007/s00030-022-00818-8

    • Peer Reviewed
  • [Journal Article] 過剰決定問題の発展方程式的解析2022

    • Author(s)
      小野寺有紹
    • Journal Title

      数学(日本数学会)

      Volume: 74, 第2号 Pages: 158~178

    • Peer Reviewed
  • [Presentation] Existence of generalized solution of mean curvature flow2023

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Seminar, University of Padova, Italy
    • Int'l Joint Research / Invited
  • [Presentation] Some existence and uniqueness questions for mean curvature flow2023

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Analysis Seminar, ETH Zurich, Switzerland
    • Int'l Joint Research / Invited
  • [Presentation] Some existence and uniqueness questions for mean curvature flow2023

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Analysis Seminar, University of Warwick, UK
    • Int'l Joint Research / Invited
  • [Presentation] On traveling waves of geometric evolution equations with area constraints2023

    • Author(s)
      高坂良史
    • Organizer
      The 40th Kyushu Symposium on Partial Differential Equations
    • Int'l Joint Research / Invited
  • [Presentation] 4階幾何学的発展方程式による曲線の挙動解析について2023

    • Author(s)
      高坂良史
    • Organizer
      北陸応用数理研究会2023
    • Invited
  • [Presentation] On the fine structure of the singular set of distance functions2023

    • Author(s)
      三浦 達哉
    • Organizer
      第40回九州における偏微分方程式研究集会
    • Int'l Joint Research / Invited
  • [Presentation] Complete classification of planar p-elasticae2023

    • Author(s)
      三浦達哉, 吉澤研介
    • Organizer
      日本数学会2023年度年会
  • [Presentation] Existence of weak solution to volume preserving mean curvature flow in higher dimensions2023

    • Author(s)
      Keisuke Takasao
    • Organizer
      Geometry and Analysis Seminar -- Mini Workshop 2023, Tohoku University
    • Int'l Joint Research / Invited
  • [Presentation] On volume preserving mean curvature flow in higher dimensions2023

    • Author(s)
      Keisuke Takasao
    • Organizer
      Kyoto-CAU Joint Meeting on Nonlinear PDEs
    • Int'l Joint Research / Invited
  • [Presentation] Existence of canonical mean curvature flow starting from closed set2022

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Univ. of Milan, Italy
    • Int'l Joint Research / Invited
  • [Presentation] Introduction to mean curvature flow2022

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Ph.D. course University of Pisa, Italy
    • Int'l Joint Research / Invited
  • [Presentation] Existence of canonical mean curvature flow starting from closed set2022

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Chinese University of Hong Kong (Zoom)
    • Int'l Joint Research / Invited
  • [Presentation] End-time regularity theorem for Brakke flows2022

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Geometry seminar, University College London, UK
    • Int'l Joint Research / Invited
  • [Presentation] End-time regularity theorem for Brakke flows2022

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      PDE seminar, Cambridge University, UK
    • Int'l Joint Research / Invited
  • [Presentation] Existence of canonical Brakke's mean curvature flow2022

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Hausdorff Center Bonn, Germany
    • Int'l Joint Research / Invited
  • [Presentation] Existence of mean curvature flow2022

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      PDE seminar, KAIST, Korea (Zoom)
    • Int'l Joint Research / Invited
  • [Presentation] Introduction to the Brakke flow and its existence theory2022

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Mini course, Geometric Measure Theory and Applications, University College London, UK
    • Int'l Joint Research / Invited
  • [Presentation] Introduction to the Brakke flow and its existence theory2022

    • Author(s)
      Yoshihiro Tonegawa
    • Organizer
      Mini course, Geometric analysis and PDE on Garda Lake, Italy
    • Int'l Joint Research / Invited
  • [Presentation] 表面拡散方程式の境界値問題に対する進行波解について2022

    • Author(s)
      高坂良史
    • Organizer
      RIMS共同研究(公開型) 偏微分方程式の臨界現象と正則性理論及び漸近解析
    • Invited
  • [Presentation] 4階幾何学的発展方程式について2022

    • Author(s)
      高坂良史
    • Organizer
      第37回さいたま数理解析セミナー
    • Invited
  • [Presentation] 体積保存型幾何学的発展方程式の進行波解について2022

    • Author(s)
      高坂良史
    • Organizer
      非線型偏微分方程式と走化性
    • Invited
  • [Presentation] Complete classification of planar p-elasticae2022

    • Author(s)
      三浦達哉
    • Organizer
      The GAPPF (Geometric Analysis: Past, Present and Future), Season 1 (Online)
    • Int'l Joint Research / Invited
  • [Presentation] On the Plateau-Douglas problem and Topping's diameter conjecture2022

    • Author(s)
      三浦達哉
    • Organizer
      部分多様体論と幾何解析の新展開
    • Invited
  • [Presentation] Li-Yau type inequality for curves and applications2022

    • Author(s)
      三浦達哉
    • Organizer
      Workshop on Non-compact Variational Problems and Related Topics, Kyoto University
    • Int'l Joint Research / Invited
  • [Presentation] Euler's elastica: Old and new2022

    • Author(s)
      三浦達哉
    • Organizer
      MSI Colloquium 2022, Australian National University, Australia
    • Int'l Joint Research / Invited
  • [Presentation] 任意の空間次元における体積保存平均曲率流方程式の弱解の存在について2022

    • Author(s)
      高棹圭介
    • Organizer
      2022 年度日本数学会秋季総合分科会
  • [Presentation] 体積保存平均曲率流の弱解の時間大域存在について2022

    • Author(s)
      高棹圭介
    • Organizer
      鳥取 PDE 研究集会 2022
    • Invited
  • [Presentation] フェイズフィールド法を用いた体積保存平均曲率流方程式の弱解の存在について2022

    • Author(s)
      高棹圭介
    • Organizer
      第13回「解析学とその周辺」,東京理科大学
    • Invited
  • [Presentation] Long time behavior for a curvature flow of networks with the effect of lattice misorientations2022

    • Author(s)
      可香谷隆
    • Organizer
      東北大学応用数理解析セミナー
    • Invited
  • [Presentation] Long time behavior for a curvature flow of networks with the effect of lattice misorientations2022

    • Author(s)
      可香谷隆
    • Organizer
      早稲田大学応用解析研究会
    • Invited
  • [Presentation] Singular Neumann boundary conditions for a class of fully nonlinear parabolic equations2022

    • Author(s)
      可香谷隆
    • Organizer
      The 81st Fujihara Seminar Mathematical Aspects for Interfaces and Free Boundaries Pre-conference
    • Int'l Joint Research / Invited
  • [Presentation] Quantitative stability in overdetermined problems2022

    • Author(s)
      小野寺有紹
    • Organizer
      RIMS研究集会「Non-compact variational problems and related topics」
    • Int'l Joint Research / Invited
  • [Presentation] Linear stability analysis of overdetermined problems2022

    • Author(s)
      小野寺有紹
    • Organizer
      ICMS Workshop on Shape Optimisation and Geometric Spectral Theory
    • Int'l Joint Research / Invited
  • [Presentation] Linear stability analysis of Serrin's overdetermined problem2022

    • Author(s)
      小野寺有紹
    • Organizer
      RIMS研究集会「偏微分方程式の臨界現象と正則性理論及び漸近解析」
    • Invited
  • [Book] 数理科学 2023年2月号 No.716「極値問題を考える --- 最大,最小をいかにしてとらえるか」2023

    • Author(s)
      長澤壯之,矢崎成俊,小野寺有紹,高橋太,小磯深幸,梶ヶ谷徹,辻元,桑江一洋,鍛冶静雄,小澤正直,龍田真
    • Total Pages
      100
    • Publisher
      サイエンス社
  • [Remarks] 利根川吉廣研究室ホームページ

    • URL

      https://www.math.titech.ac.jp/~tonegawa/toppagejp.htm

URL: 

Published: 2023-12-25  

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