数学物理学报(英文版) ›› 2020, Vol. 40 ›› Issue (2): 316-340.doi: 10.1007/s10473-020-0202-x

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MULTI-BUMP SOLUTIONS FOR NONLINEAR CHOQUARD EQUATION WITH POTENTIAL WELLS AND A GENERAL NONLINEARITY

郭伦1, 胡亭曦2   

  1. 1. College of Science, Huazhong Agricultural University, Wuhan 430070, China;
    2. School of Mathematics and Statistics, Southwest University, Chongqing 400715, China
  • 收稿日期:2017-09-13 修回日期:2019-05-29 出版日期:2020-04-25 发布日期:2020-05-26
  • 通讯作者: Tingxi HU E-mail:tingxihu@swu.edu.cn
  • 作者简介:Lun GUO,E-mail:lguo@mails.ccnu.edu.cn,lguo@mail.hzau.edu.cn
  • 基金资助:
    L. Guo is supported by the Fundamental Research Funds for the Central Universities (2662018QD039); T. Hu is supported by the Project funded by China Postdoctoral Science Foundation (2018M643389).

MULTI-BUMP SOLUTIONS FOR NONLINEAR CHOQUARD EQUATION WITH POTENTIAL WELLS AND A GENERAL NONLINEARITY

Lun GUO1, Tingxi HU2   

  1. 1. College of Science, Huazhong Agricultural University, Wuhan 430070, China;
    2. School of Mathematics and Statistics, Southwest University, Chongqing 400715, China
  • Received:2017-09-13 Revised:2019-05-29 Online:2020-04-25 Published:2020-05-26
  • Contact: Tingxi HU E-mail:tingxihu@swu.edu.cn
  • Supported by:
    L. Guo is supported by the Fundamental Research Funds for the Central Universities (2662018QD039); T. Hu is supported by the Project funded by China Postdoctoral Science Foundation (2018M643389).

摘要: In this article, we study the existence and asymptotic behavior of multi-bump solutions for nonlinear Choquard equation with a general nonlinearity \begin{equation*} -\Delta u+(\lambda a(x)+1)u=\Big(\frac{1}{|x|^{\alpha}}\ast F(u)\Big)f(u) \ \ \text{in}\ \ \mathbb{R}^{N}, \end{equation*} where $N\geq 3$, $0<\alpha< \min\{N,4\}$, $\lambda$ is a positive parameter and the nonnegative potential function $a(x)$ is continuous. Using variational methods, we prove that if the potential well int$(a^{-1}(0))$ consists of $k$ disjoint components, then there exist at least $2^k-1$ multi-bump solutions. The asymptotic behavior of these solutions is also analyzed as $\lambda\to +\infty$.

关键词: Nonlinear Choquard equation, nonlocal nonlinearities, multi-bump solutions, variational methods

Abstract: In this article, we study the existence and asymptotic behavior of multi-bump solutions for nonlinear Choquard equation with a general nonlinearity \begin{equation*} -\Delta u+(\lambda a(x)+1)u=\Big(\frac{1}{|x|^{\alpha}}\ast F(u)\Big)f(u) \ \ \text{in}\ \ \mathbb{R}^{N}, \end{equation*} where $N\geq 3$, $0<\alpha< \min\{N,4\}$, $\lambda$ is a positive parameter and the nonnegative potential function $a(x)$ is continuous. Using variational methods, we prove that if the potential well int$(a^{-1}(0))$ consists of $k$ disjoint components, then there exist at least $2^k-1$ multi-bump solutions. The asymptotic behavior of these solutions is also analyzed as $\lambda\to +\infty$.

Key words: Nonlinear Choquard equation, nonlocal nonlinearities, multi-bump solutions, variational methods

中图分类号: 

  • 35J20