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2012 Fiscal Year Annual Research Report

偏微分方程式の解の形状と挙動に関する系統的研究

Research Project

Project/Area Number 24244012
Research Category

Grant-in-Aid for Scientific Research (A)

Research InstitutionTokyo Institute of Technology

Principal Investigator

柳田 英二  東京工業大学, 理工学研究科, 教授 (80174548)

Co-Investigator(Kenkyū-buntansha) 仙葉 隆  九州工業大学, 工学(系)研究科(研究院), 教授 (30196985)
内藤 雄基  愛媛大学, 理工学研究科, 教授 (10231458)
壁谷 喜継  大阪府立大学, 工学(系)研究科(研究院), 教授 (70252757)
谷口 雅治  岡山大学, 自然科学研究科, 教授 (30260623)
石渡 通徳  福島大学, 共生システム理工学類, 准教授 (30350458)
高坂 良史  室蘭工業大学, 工学(系)研究科(研究院), 准教授 (00360967)
Project Period (FY) 2012-05-31 – 2017-03-31
Keywords関数方程式の大域理論 / 安定性 / 漸近挙動 / 分岐構造 / 特異性
Research Abstract

放物型および楕円型偏微分方程式の解の構造についての研究を進め,以下のような成果をあげた.
①藤田型方程式に対し,指数に関する適当な仮定のもとで,球対称な定常特異解の安定性について調べ,重み付き空間において大域的に安定であることを示した.②空間次元が11以上の場合について,走化性方程式の球対称な定常解が球対称な摂動に対して安定である事を示し,またこの事実の応用として走化性方 程式の球対称な振動解を構成した.③臨界指数をもつ半線型放物型問題について,前方自己相似変換後の方程式に付随するエネルギー汎関数に関する大域的コンパクト性定理を証明し,時間大域解のエネルギーの時間無限大極限が量子化されることを示した.④外部領域と交わる軸対称な曲面の表面拡散方程式における定常は平均曲率一定曲面である球面の一部,円柱,アンデュロイドのいずれかになるが,円柱の場合について安定性を調べ,対応する線形化方程式の固有値問題を解析することで円柱に関する安定性の判定条件を得た.⑤べき乗型の非線形項をもつ半線形熱方程式のCauchy 問題の解の挙動について考察を行い,2つ以上の自己相似解が存在する場合,非最小自己相似解は,時間大域存在と有限時刻爆発を分ける敷居解となること,そして時間大域解は漸近的に最小自己相似解に収束することを示した.⑥球面上の領域において,ガウスの超幾何関数の詳細な解析をすることで,経度依存も込めた全体の分岐解析を行い,関連する話題として,臨界シュレディンガー熱半群の精密な時間減衰評価を得た.⑦Allen-Cahn方程式において,軸非対称進行波解の存在と,スピードがゼロの局在進行波解の非存在を証明した.また競争拡散系とよばれる反応拡散系において,角錐型進行波の存在を証明した.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

放物型偏微分方程式については,藤田型方程式や走化性方程式の定常解の安定性と漸近挙動,臨界型の場合のエネルギー汎関数の性質について進歩があった.楕円型方程式については,球面上の解構造の分岐や平均曲率一定曲面上の固有値問題について新たな進展があった.

Strategy for Future Research Activity

放物型偏微分方程式については,安定な定常解への収束レートやホモクリニック解の性質についての研究を進める.楕円型方程式については,双曲空間や球面上の方程式の解の大域的分岐構造について研究を進める.

  • Research Products

    (40 results)

All 2013 2012 Other

All Journal Article (16 results) (of which Peer Reviewed: 16 results) Presentation (24 results) (of which Invited: 24 results)

  • [Journal Article] Multiple positive solutions of semilinear elliptic equations with weight function in exterior domains2013

    • Author(s)
      Michinori Ishiwata
    • Journal Title

      Differential and Integral Equations

      Volume: 26 Pages: 183-200

    • Peer Reviewed
  • [Journal Article] Bounded and unbounded oscillating solutions to a parabolic-elliptic system in two dimensional space2013

    • Author(s)
      Yuki Naito and Takasi Senba
    • Journal Title

      Commun. Pure Appl. Anal.

      Volume: 12 Pages: 1861-1880

    • DOI

      10.3934/cpaa.2013.12.1861

    • Peer Reviewed
  • [Journal Article] Decay rate of L^q norms of critical schrodinger heat semigroups2013

    • Author(s)
      K. Ishige and Y. Kabeya
    • Journal Title

      ``Geometric Properties for Parabolic and Elliptic PDE's", in Springer INdAM Series

      Volume: 2 Pages: 165-178

    • DOI

      10.1007/978-88-2841-8_11

    • Peer Reviewed
  • [Journal Article] Non-existence of localized travelling waves with non-zero speed in single reaction-diffusion equations2013

    • Author(s)
      Yong Jung Kim, Wei-Ming Ni and Masaharu Taniguchi
    • Journal Title

      Discrete and Continuous Dynamical Systems - Series A

      Volume: 33 Pages: 3707-3718

    • DOI

      10.3934/dcds.2013.33.3707

    • Peer Reviewed
  • [Journal Article] Traveling fronts of pyramidal shapes in competition-diffusion systems2013

    • Author(s)
      Wei-Ming Ni and Masaharu Taniguchi
    • Journal Title

      Networks and Heterogeneous Media

      Volume: 8 Pages: 379-395

    • DOI

      10.3934/nhm.2013.8.379

    • Peer Reviewed
  • [Journal Article] Appearance of anomalous singularities in a semilinear parabolic equation2012

    • Author(s)
      S. Sato and E. Yanagida
    • Journal Title

      Commun. Pure Appl. Anal.

      Volume: 11 Pages: 387-405

    • DOI

      10.3934/cpaa.2012.11.387

    • Peer Reviewed
  • [Journal Article] Rate of Convergence to Barenblatt Profiles for the Fast Diffusion Equation2012

    • Author(s)
      M. Fila, J. L. Vazquez, M. Winkler and E. Yanagida
    • Journal Title

      Arch. Rational Mech. Anal.

      Volume: 204 Pages: 599-625

    • DOI

      10.1007/s00205-011-0486-z

    • Peer Reviewed
  • [Journal Article] A Solution to an Ambarzumyan Problem on Trees2012

    • Author(s)
      C.-K. Law and E. Yanagida
    • Journal Title

      Kodai Math. J.

      Volume: 35 Pages: 358-373

    • Peer Reviewed
  • [Journal Article] Blow-up behavior of solutions to a parabolic-elliptic system on higher dimensional domains2012

    • Author(s)
      Yuki Naito and Takasi Senba
    • Journal Title

      Discrete and Continuous Dynamical System - Series A

      Volume: 32 Pages: 3691-3713

    • DOI

      10.3934/dcds.2012.32.3691

    • Peer Reviewed
  • [Journal Article] The role of forward self-similar solutions in the Cauchy problem for semilinear heat equations2012

    • Author(s)
      Yuki Naito
    • Journal Title

      J. Differential Equations

      Volume: 253 Pages: 3029-3060

    • DOI

      dx.doi.org/10.1016/j.jde.2012.08.013

    • Peer Reviewed
  • [Journal Article] Remarks on singular Sturm comparison theorems2012

    • Author(s)
      Yuki Naito
    • Journal Title

      Mem. Differential Equations Math. Phys.

      Volume: 57 Pages: 109-122

    • Peer Reviewed
  • [Journal Article] Classification of second order linear differential equations and an application to singular elliptic eigenvalue problems2012

    • Author(s)
      Yuki Naito
    • Journal Title

      Bull. Lond. Math. Soc.

      Volume: 44 Pages: 545-562

    • DOI

      10.1112/blms/bdr117

    • Peer Reviewed
  • [Journal Article] Non-homogeneous semilinear elliptic equations involving critical Sobolev exponent2012

    • Author(s)
      Yuki Naito and Tokushi Sato
    • Journal Title

      Ann. Mat. Pura Appl.

      Volume: 191 Pages: 25-51

    • DOI

      10.1007/s10231-010-0173-y

    • Peer Reviewed
  • [Journal Article] Rectifiable oscillations of radially symmetric solutions of p-Laplace differential equations2012

    • Author(s)
      Yuki Naito, Mervan Pasic, and Hiroyuki Usami
    • Journal Title

      Differ. Equ. Appl.

      Volume: 4 Pages: 11-25

    • DOI

      dx.doi.org/10.7153/dea-04-03

    • Peer Reviewed
  • [Journal Article] Heat equation with a singular potential on the boundary and the Kato inequality2012

    • Author(s)
      Kazuhiro Ishige, Michinori Ishiwata
    • Journal Title

      Journal d'Analyse Mathematique

      Volume: 118 Pages: 161-176

    • DOI

      10.1007/s11854-012-0032-4

    • Peer Reviewed
  • [Journal Article] Global solutions for a semilinear heat equation in the exterior domain of a compact set2012

    • Author(s)
      Kazuhiro Ishige, Michinori Ishiwata
    • Journal Title

      Discrete and continuous dynamical systems - Series A

      Volume: 32 Pages: 847-866

    • DOI

      10.3934/dcds.2012.32.847

    • Peer Reviewed
  • [Presentation] Asymptotic Behavior of Singular Solutions for a Semilinear Parabolic Equation

    • Author(s)
      Eiji Yanagida
    • Organizer
      9th AIMS International Conference on Dynamical Systems, Differential Equations and Applications
    • Place of Presentation
      Orlando, Florida, USA
    • Invited
  • [Presentation] Convergence to Barenblatt Profiles for the Fast Diffusion Equation

    • Author(s)
      Eiji Yanagida
    • Organizer
      Second Sino-Chilean Conference on Nonlinear Partial Differential Equations
    • Place of Presentation
      Pontificial Universidad Catolica, Santiago, Chile
    • Invited
  • [Presentation] Diffusion-induced phenomena in nonlinear systems

    • Author(s)
      Eiji Yanagida
    • Organizer
      Turing Symposium on Morphogenesis
    • Place of Presentation
      Sendai International Center(宮城県)
    • Invited
  • [Presentation] Asymptotic behavior of singular solutions for a semilinear parabolic equation

    • Author(s)
      Eiji Yanagida
    • Organizer
      IMA Annual Programs: Infinite Dimensional and Stochastic Dynamical Systems and Their Applications, Workshop: Dynamical Systems in Studies of Partial Differential Equations
    • Place of Presentation
      University of Minnesota, Minneapolis, USA
    • Invited
  • [Presentation] Non-accessible singular homoclinic orbits for a semilinear parabolic equation

    • Author(s)
      Eiji Yanagida
    • Organizer
      Swiss-Japanese Seminar
    • Place of Presentation
      University of Zurich, Switzerland
    • Invited
  • [Presentation] Singular Solutions of a Seimilinear Parabolic equation

    • Author(s)
      Eiji Yanagida
    • Organizer
      UK-Japan Winter School--Nonlinear Analysis--
    • Place of Presentation
      Royal Academy of Engineering, London, UK
    • Invited
  • [Presentation] Oscillating solutions to a simplified chemotaxis system in high dimensional spaces

    • Author(s)
      Takasi Senba
    • Organizer
      5th Euro-Japanese Workshop on Blow-up
    • Place of Presentation
      Centre Insternational de Rencontres Mathematiques, Luminy, Marseille, France
    • Invited
  • [Presentation] Global attractivity properties of stationary solutions for semilinear heat equations

    • Author(s)
      Yuki Naito
    • Organizer
      5th Euro-Japanese Workshop on Blow-up
    • Place of Presentation
      CIRM, Marseille-Luminy, France
    • Invited
  • [Presentation] Global attractivity of self-similar solutions for semilinear heat equations

    • Author(s)
      内藤雄基
    • Organizer
      研究集会「広島微分方程式研究会」
    • Place of Presentation
      広島大学理学部(広島県)
    • Invited
  • [Presentation] 非線形熱方程式の解の漸近挙動と自己相似解

    • Author(s)
      内藤雄基
    • Organizer
      熊本大学数学談話会
    • Place of Presentation
      熊本大学数理演習室(熊本県)
    • Invited
  • [Presentation] Separation structure of positive radial solutions for semilinear elliptic equations

    • Author(s)
      Yuki Naito
    • Organizer
      Swiss-Japanese Seminar
    • Place of Presentation
      University of Zurich, Switzerland
    • Invited
  • [Presentation] 非線形熱方程式の解の漸近挙動と自己相似解

    • Author(s)
      内藤雄基
    • Organizer
      神戸解析セミナー
    • Place of Presentation
      神戸大学理学部(兵庫県)
    • Invited
  • [Presentation] Global behavior of solutions to semilinear heat equations

    • Author(s)
      Yuki Naito
    • Organizer
      International Conference "Quantization blow-up and concentration in mathematical physics view point
    • Place of Presentation
      大阪大学シグマホール(大阪府)
    • Invited
  • [Presentation] Unified approach to Matukuma type equaitons on the hyperbolic space or on a sphere

    • Author(s)
      Y. Kabeya
    • Organizer
      9th AIMS Conference on Differential Equations
    • Place of Presentation
      Orlando, FL., USA
    • Invited
  • [Presentation] Bifurcation diagrams of nonlinear eplliptic problems on a spherical cap

    • Author(s)
      Y. Kabeya
    • Organizer
      Swiss-Japanese Seminar
    • Place of Presentation
      University of Zurich, Zurich, Switzerland
    • Invited
  • [Presentation] Bifurcation diagrams of a nonlinear eplliptic problem on a spherical cap

    • Author(s)
      Y. Kabeya
    • Organizer
      International Workshop on Stationary Problems in Nonlinear Partial Differential Equations
    • Place of Presentation
      Saga University(佐賀県)
    • Invited
  • [Presentation] Multi-dimensional traveling fronts in bistable reaction-diffusion equations in $\mathbb{R}^{N}$

    • Author(s)
      Masaharu Taniguchi
    • Organizer
      AMS Southeastern Fall Section Meeting
    • Place of Presentation
      Tulane University at New Olreans, USA
    • Invited
  • [Presentation] Asymptotic behavior of solutions for semilinear parabolic equation with critical Sobolev exponent

    • Author(s)
      Michinori Ishiwata
    • Organizer
      Regularity and Singularity for Geometric Partial Differential Equations and Conservation Laws
    • Place of Presentation
      Resarch Institute of Mathematical Science, Kyoto University(京都府)
    • Invited
  • [Presentation] Variational problems associated with Trudinger-Moser inequalities in unbounded domains

    • Author(s)
      Michinori Ishiwata
    • Organizer
      The 9th AIMS conference on Dynamical systems, Differential equations and Applications
    • Place of Presentation
      Hilton Grand Cypress, Orlando, FL, USA
    • Invited
  • [Presentation] On the asymptotic behavior of solutions for semiliear parabolic equations involving critical Sobolev exponent

    • Author(s)
      Michinori Ishiwata
    • Organizer
      The 9th AIMS conference on Dynamical systems, Differential equations and Applications
    • Place of Presentation
      Hilton Grand Cypress, Orlando, FL, USA
    • Invited
  • [Presentation] Asymptotic behavior of Palais-Smale sequences in the critical problem and its application to semilinear heat equation

    • Author(s)
      Michinori Ishiwata
    • Organizer
      5th Euro-Japanese Workshop on Blow-up
    • Place of Presentation
      Centre International de Rencontres Mathematiques, Luminy, Marseille, France
    • Invited
  • [Presentation] Asymptotic behavior of time-global solutions for semilinear heat equation involving critical Sobolev exponent

    • Author(s)
      Michinori Ishiwata
    • Organizer
      5th Polish-Japanese Days on Nonlinear Analysis in Interdisciplinary Sciences - Modellings, Theory and Simulations -
    • Place of Presentation
      Kansai seminar house(京都府)
    • Invited
  • [Presentation] Variational problems associated with Trudinger-Moser inequalities in unbounded domains

    • Author(s)
      Michinori Ishiwata
    • Organizer
      Swiss-Japanese Seminar
    • Place of Presentation
      University of Zurich, Zurich, Switzerland
    • Invited
  • [Presentation] Semilinear parabolic equation with critical Sobolev exponent

    • Author(s)
      Michinori Ishiwata
    • Organizer
      International Conference Quantization Blow-up and Concentration in Mathematical Physics View Point
    • Place of Presentation
      Sigma Hall, Osaka University(大阪府)
    • Invited

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Published: 2015-05-28  

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