数学物理学报(英文版) ›› 2020, Vol. 40 ›› Issue (5): 1585-1601.doi: 10.1007/s10473-020-0523-9

• 论文 • 上一篇    下一篇

POSITIVE SOLUTIONS AND INFINITELY MANY SOLUTIONS FOR A WEAKLY COUPLED SYSTEM

段雪亮1, 魏公明2, 杨海涛3   

  1. 1. School of Mathematical Sciences, Zhejiang University, Hangzhou 310027, China;
    2. College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China;
    3. School of Mathematical Sciences, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:2018-11-21 修回日期:2019-12-02 出版日期:2020-10-25 发布日期:2020-11-04
  • 通讯作者: Xueliang DUAN E-mail:xueliangduan@outlook.com
  • 作者简介:Gongming WEI,E-mail:gmweixy@163.com;Haitao YANG,E-mail:htyang@zju.edu.cn

POSITIVE SOLUTIONS AND INFINITELY MANY SOLUTIONS FOR A WEAKLY COUPLED SYSTEM

Xueliang DUAN1, Gongming WEI2, Haitao YANG3   

  1. 1. School of Mathematical Sciences, Zhejiang University, Hangzhou 310027, China;
    2. College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China;
    3. School of Mathematical Sciences, Zhejiang University, Hangzhou 310027, China
  • Received:2018-11-21 Revised:2019-12-02 Online:2020-10-25 Published:2020-11-04
  • Contact: Xueliang DUAN E-mail:xueliangduan@outlook.com

摘要: We study a Schrödinger system with the sum of linear and nonlinear couplings. Applying index theory, we obtain infinitely many solutions for the system with periodic potentials. Moreover, by using the concentration compactness method, we prove the existence and nonexistence of ground state solutions for the system with close-to-periodic potentials.

Abstract: We study a Schrödinger system with the sum of linear and nonlinear couplings. Applying index theory, we obtain infinitely many solutions for the system with periodic potentials. Moreover, by using the concentration compactness method, we prove the existence and nonexistence of ground state solutions for the system with close-to-periodic potentials.

中图分类号: 

  • 35A15