Acta mathematica scientia,Series B ›› 2023, Vol. 43 ›› Issue (3): 1116-1130.doi: 10.1007/s10473-023-0308-z

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POSITIVE SOLUTIONS WITH HIGH ENERGY FOR FRACTIONAL SCHRÖDINGER EQUATIONS*

Qing Guo1, Leiga Zhao2,†   

  1. 1. College of Science, Minzu University of China, Beijing 100081, China;
    2. School of Mathematics and Statistics, Beijing Technology and Business University, Beijing 100048, China
  • Received:2021-05-24 Revised:2022-08-22 Online:2023-06-25 Published:2023-06-06
  • Contact: Leiga Zhao, E-mail: zhaoleiga@163.com
  • About author:Qing Guo, E-mail: guoqing0117@163.com
  • Supported by:
    NNSF of China (12171014, 12271539, 12171326), the Beijing Municipal Commission of Education (KZ202010028048) and the Research Foundation for Advanced Talents of Beijing Technology and Business University (19008022326).

Abstract: In this paper, we study the Schrödinger equations
$ (-\Delta)^s u+ V(x)u= a(x)|u|^{p-2}u+b(x)|u|^{q-2}u,\ \ x\in\ {\mathbb{R}}^{N},$
where $0<s<1$, $2<q<p<2^*_s$, $2^*_s$ is the fractional Sobolev critical exponent. Under suitable assumptions on $V$, $a$ and $b$ for which there may be no ground state solution, the existence of positive solutions are obtained via variational methods.

Key words: fractional Schrödinger equations, positive solution, concentration compactness principle

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