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Asymmetric solutions of elliptic partial differential equations

Research Project

Project/Area Number 16K05236
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Mathematical analysis
Research InstitutionSaga University

Principal Investigator

Kajikiya Ryuji  佐賀大学, 理工学部, 教授 (10183261)

Project Period (FY) 2016-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords楕円型偏微分方程式 / 変分法 / 境界値問題 / 対称解 / 2点境界値問題 / 常微分方程式 / 非対称解 / 半線形楕円型偏微分方程式 / nodal solution / 正値解 / 球対称解 / 放物型偏微分方程式 / 定常解の安定性 / 最小エネルギー解 / p ラプラス方程式 / (p,q) ラプラス方程式 / 定常解 / 無限に多くの解 / 関数方程式 / 非線形偏微分方程式 / 非線形楕円型偏微分方程式 / 解の非対称性
Outline of Final Research Achievements

We study the p-Laplace equation on the Dirichlet boundary condition. Under a very weak condition on the nonlinear term, we prove the existence of a sequence of solutions which converges to the zero solution. For some elliptic equations with parameters, we decide whether the zero solution is an accumulation point or an isolated point in the set of all solutions.
We study the p-Laplace Emden-Fowler equation with a radial and sign-changing weight in the unit ball under the Dirichlet boundary condition. We show that if the weight function is negative in the unit ball except for a small neighborhood of the boundary and positive at somewhere in this neighborhood, then no least energy solution is radially symmetric. Here a least energy solution is defined by the minimizer of the Rayleigh quotient.

Academic Significance and Societal Importance of the Research Achievements

この研究は, 数学や物理学, 工学などにおいて非常に重要な偏微分方程式である楕円型偏微分方程式の解の性質を調べるものである. 解を無限に多くもつ楕円型偏微分方程式の研究は, 今までにも行われてきた. 本研究では, 極めて弱い仮定のもとに解の無限個の存在を証明している.
また, 方程式が対称性をもつにもかかわらずに, 解が非対称になることが起きる. このような対称性の崩れは, 解の分岐理論にも密接に関係していて, 非対称解の研究は, 楕円型偏微分方程式論において極めて重要である.

Report

(7 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (47 results)

All 2021 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (3 results) Journal Article (12 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 11 results,  Acknowledgement Compliant: 3 results) Presentation (30 results) (of which Int'l Joint Research: 9 results,  Invited: 13 results) Remarks (2 results)

  • [Int'l Joint Research] Faculty of Basic Sciences/Keimyung University(韓国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Keimyung University(韓国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Department of Mathematics/University of Ulsan(韓国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Existence of nodal solutions for the sublinear Moore-Nehari differential equation.2021

    • Author(s)
      R. Kajikiya
    • Journal Title

      Discrete and Continuous Dynamical Systems. Series A

      Volume: 41 Issue: 3 Pages: 1483-1506

    • DOI

      10.3934/dcds.2020326

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Existence of positive radial solutions for a semipositone elliptic equation.2020

    • Author(s)
      R. Kajikiya and E. Ko
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 484 Issue: 2 Pages: 1-19

    • DOI

      10.1016/j.jmaa.2019.123735

    • NAID

      40022258055

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Existence of positive radial solutions for a semipositone elliptic equation.2019

    • Author(s)
      R. Kajikiya
    • Journal Title

      数理解析研究所講究録

      Volume: 2149 Pages: 29-37

    • NAID

      40022258055

    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Journal Article] Stability and instability of stationary solutions for sublinear parabolic equations.2018

    • Author(s)
      R. Kajikiya
    • Journal Title

      J. Differential Equations

      Volume: 264 Issue: 2 Pages: 786-834

    • DOI

      10.1016/j.jde.2017.09.023

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nonradial least energy solutions of the p-Laplace elliptic equations.2018

    • Author(s)
      R. Kajikiya
    • Journal Title

      Discrete and Continuous Dynamical Systems. Series A

      Volume: 38 Issue: 2 Pages: 547-561

    • DOI

      10.3934/dcds.2018024

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] A complete classification of bifurcation diagrams for a class of (p,q)-Laplace equations2018

    • Author(s)
      Kajikiya Ryuji, Sim Inbo, Tanaka Satoshi
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 462 Issue: 2 Pages: 1178-1194

    • DOI

      10.1016/j.jmaa.2018.02.049

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Symmetric and asymmetric solutions of p-Laplace elliptic equations in hollow domains.2018

    • Author(s)
      R. Kajikiya
    • Journal Title

      Advanced Nonlinear Studies

      Volume: 18 Issue: 2 Pages: 303-321

    • DOI

      10.1515/ans-2017-6023

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Symmetry-breaking bifurcation for the Moore-Nehari differential equation.2018

    • Author(s)
      R. Kajikiya, I. Sim and S. Tanaka
    • Journal Title

      Nonlinear Differential Equations and Applications

      Volume: 25 Issue: 6 Pages: 1-22

    • DOI

      10.1007/s00030-018-0545-3

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Bifurcation of positive solutions for the one-dimensional (p,q)-Laplace equation.2017

    • Author(s)
      R. Kajikiya, M. Tanaka and S. Tanaka
    • Journal Title

      Electronic Journal of Differential Equations

      Volume: 2017 Pages: 1-37

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Symmetric mountain pass lemma and sublinear elliptic equations.2016

    • Author(s)
      R. Kajikiya
    • Journal Title

      J. Differential Equations

      Volume: 260 Issue: 3 Pages: 2587-2610

    • DOI

      10.1016/j.jde.2015.10.016

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Nonradial positive solutions of the p-Laplace Emden-Fowler equation with sign-changing weight2016

    • Author(s)
      R. Kajikiya
    • Journal Title

      Mathematische Nachrichten

      Volume: 289 Issue: 2-3 Pages: 290-299

    • DOI

      10.1002/mana.201500103

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Existence of infinitely many solutions for the (p,q)-Laplace equation.2016

    • Author(s)
      Y. Komiya and R. Kajikiya
    • Journal Title

      Nonlinear Differential Equations and Applications

      Volume: 23 Issue: 4 Pages: 1-23

    • DOI

      10.1007/s00030-016-0402-1

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Symmetric and asymmetric nodal solutions for the Moore-Nehari differential equation.2021

    • Author(s)
      R. Kajikiya
    • Organizer
      Differential Equations Day on ZOOM
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bifurcation of nodal solutions for the Moore-Nehari differential equation.2021

    • Author(s)
      梶木屋 龍治
    • Organizer
      日本数学会, 千葉大学 (オンラインでの学会)
    • Related Report
      2021 Annual Research Report
  • [Presentation] 劣線形 Moore-Nehari 方程式の nodal solution の存在2021

    • Author(s)
      梶木屋 龍治
    • Organizer
      オンラインによる微分方程式セミナー
    • Related Report
      2021 Annual Research Report
  • [Presentation] 劣線形楕円型方程式の無限に多くの解の存在2021

    • Author(s)
      梶木屋 龍治
    • Organizer
      東北大学談話会 (オンライン)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 劣線形楕円型方程式の無限に多くの小さな解の存在2021

    • Author(s)
      梶木屋 龍治
    • Organizer
      広島大学談話会 (対面)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 劣線形 Moore-Nehari 方程式の nodal solution の存在2021

    • Author(s)
      梶木屋 龍治
    • Organizer
      日本数学会, 慶應義塾大学 (オンラインでの学会)
    • Related Report
      2020 Research-status Report
  • [Presentation] Symmetric and asymmetric nodal solutions for the Moore-Nehari differential equation2021

    • Author(s)
      梶木屋 龍治
    • Organizer
      数理解析研究所, 研究集会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Moore-Nehari 方程式の対称および非対称なnodal solution の存在2020

    • Author(s)
      梶木屋 龍治
    • Organizer
      日本数学会, 熊本大学 (オンラインでの学会)
    • Related Report
      2020 Research-status Report
  • [Presentation] A priori estimate for the first eigenvalue of the p-Laplacian.2019

    • Author(s)
      R. Kajikiya
    • Organizer
      Equadiff2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Existence of positive radial solutions for a semipositone elliptic equation2019

    • Author(s)
      R. Kajikiya
    • Organizer
      International Workshop on PDEs and Applications.
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Existence of positive radial solutions for a semipositone elliptic equation.2019

    • Author(s)
      R. Kajikiya and E. Ko
    • Organizer
      日本数学会
    • Related Report
      2019 Research-status Report
  • [Presentation] Existence of positive radial solutions for a semipositone elliptic equation2019

    • Author(s)
      R. Kajikiya
    • Organizer
      愛媛大学における微分方程式セミナー
    • Related Report
      2019 Research-status Report
  • [Presentation] 半線形楕円型方程式の群不変解の存在2019

    • Author(s)
      R. Kajikiya
    • Organizer
      第9回岐阜数理科学研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Infinitely many solutions for the (p,q)-Laplace equation.2018

    • Author(s)
      R. Kajikiya
    • Organizer
      The 12th AIMS Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Infinitely many solutions for the (p,q)-Laplace equation.2018

    • Author(s)
      R. Kajikiya
    • Organizer
      The seminar on University of Ulsan
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Symmetric mountain pass theorem and sublinear elliptic equations.2018

    • Author(s)
      R. Kajikiya
    • Organizer
      International Workshop on Nonlinear PDEs 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] A complete classification of bifurcation diagrams for a class of (p,q)-Laplace equations.2018

    • Author(s)
      S. Tanaka, R. Kajikiya and I. Sim
    • Organizer
      日本数学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Group invariant positive solutions of a semilinear elliptic equation.2018

    • Author(s)
      R. Kajikiya
    • Organizer
      Mini workshop on variational problems
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] A complete classification of bifurcation diagrams for a class of (p,q)-Laplace equations.2018

    • Author(s)
      R. Kajikiya, I. Sim, S. Tanaka,
    • Organizer
      日本数学会
    • Related Report
      2017 Research-status Report
  • [Presentation] A complete classification of bifurcation diagrams for a class of (p,q)-Laplace equation.2018

    • Author(s)
      梶木屋龍治
    • Organizer
      非線形問題への常微分方程式の手法によるアプローチ
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Stability of stationary solutions for sublinear parabolic equations.2017

    • Author(s)
      R. Kajikiya
    • Organizer
      International Workshop on Nonlinear PDE and Applications
    • Place of Presentation
      Daejeon, Korea
    • Year and Date
      2017-03-30
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 穴の空いた対称領域におけるpラプラス方程式の対称解2017

    • Author(s)
      梶木屋龍治
    • Organizer
      微分方程式論ワークショップ 岐阜 2017
    • Place of Presentation
      岐阜大学サテライトキャンパス
    • Year and Date
      2017-03-08
    • Related Report
      2016 Research-status Report
  • [Presentation] Symmetric solutions of p-Laplace elliptic equations in hollow domains.2017

    • Author(s)
      R. Kajikiya
    • Organizer
      Equadiff 2017.
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Symmetric solutions of p-Laplace equations in hollow domains.2017

    • Author(s)
      R. Kajikiya
    • Organizer
      Nonlinear Analysis, PDEs
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 穴の空いた領域におけるpラプラス方程式の対称解2017

    • Author(s)
      梶木屋龍治
    • Organizer
      日本数学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 半線形楕円型方程式の群不変解2017

    • Author(s)
      梶木屋龍治
    • Organizer
      微分方程式の総合的研究
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 半線形放物型方程式の定常解の安定性2017

    • Author(s)
      梶木屋龍治
    • Organizer
      熊本大学応用解析セミナー
    • Place of Presentation
      熊本大学
    • Related Report
      2016 Research-status Report
  • [Presentation] Stability of stationary solutions for semilinear parabolic equations2016

    • Author(s)
      梶木屋龍治
    • Organizer
      常微分方程式の定性的理論とその周辺
    • Place of Presentation
      数理解析研究所
    • Year and Date
      2016-11-16
    • Related Report
      2016 Research-status Report
  • [Presentation] Stability of stationary solutions for sublinear parabolic equations2016

    • Author(s)
      梶木屋龍治
    • Organizer
      日本数学会
    • Place of Presentation
      関西大学
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] Nonradial positive solutions of the p-Laplace Emden-Fowler equation2016

    • Author(s)
      R. Kajikiya
    • Organizer
      The 11th AIMS Conference on Dynamical Systems, Differential Equations and Applications
    • Place of Presentation
      Orlando, Florida, USA
    • Year and Date
      2016-07-01
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Remarks] A complete classification of bifurcation diagrams

    • URL

      https://doi.org/10.1016/j.jmaa.2018.02.049

    • Related Report
      2018 Research-status Report
  • [Remarks] Symmetry-breaking bifurcation

    • URL

      https://doi.org/10.1007/s00030-018-0545-3

    • Related Report
      2018 Research-status Report

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Published: 2016-04-21   Modified: 2023-01-30  

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