CONCENTRATION AND UNIQUENESS OF MINIMIZERS FOR FRACTIONAL SCHRÖDINGER ENERGY FUNCTIONALS

  • Lintao LIU ,
  • Shuai YAO ,
  • Kaimin TENG ,
  • Haibo CHEN
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  • 1. Department of Mathematics, North University of China, Taiyuan 030051, China;
    2. School of Mathematics and Statistics, Shandong University of Technology, Zibo 255049, China;
    3. Department of Mathematics, Taiyuan University of Technology, Taiyuan 030024, China; School of Mathematics and Statistics, Central South University, Changsha 410083, China
Lintao Liu, E-mail: liulintao1995@163.com; Shuai Yao, E-mail: shyao2019@163.com; Kaimin Teng, E-mail: tengkaimin2013@163.com

Received date: 2023-07-31

  Revised date: 2024-11-19

  Online published: 2025-10-14

Supported by

Liu's research was supported by the Fundamental Research Program of Shanxi Province (202403021222126). Teng's research was supported by the Fundamental Research Program of Shanxi Province (202303021211056). Chen's research was supported by the National Natural Science Foundation of China (12071486).

Abstract

We consider a constrained minimization problem arising in the fractional Schrödinger equation with a trapping potential. By exploring some delicate energy estimates and studying decay properties of solution sequences, we obtain the concentration behavior of each minimizer of the fractional Schrödinger energy functional when $a\nearrow a^{\ast}:=\|Q\|_{2}^{2s}$, where $Q$ is the unique positive radial solution of $(-\Delta)^{s}u+su-|u|^{2s}u=0$ in $\mathbb{R}^{2}$. Based on the discussion of the concentration phenomenon, we prove the local uniqueness of minimizers by establishing a local Pohožaev identity and studying the blow-up estimates to the nonlocal operator $(-\Delta)^{s}$.

Cite this article

Lintao LIU , Shuai YAO , Kaimin TENG , Haibo CHEN . CONCENTRATION AND UNIQUENESS OF MINIMIZERS FOR FRACTIONAL SCHRÖDINGER ENERGY FUNCTIONALS[J]. Acta mathematica scientia, Series B, 2025 , 45(5) : 1981 -2009 . DOI: 10.1007/s10473-025-0511-1

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