Acta mathematica scientia,Series A ›› 2026, Vol. 46 ›› Issue (3): 1038-1053.

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Concentrated Normalized Solutions of Saturable Schrödinger Equations with the Potential

Wei Long(), Shuyao Lu*(), Dongmei Zhang()   

  1. School of Mathematics and Statistics, Jiangxi Normal University, Nanchang 330022
  • Received:2025-07-15 Revised:2025-10-21 Online:2026-06-26 Published:2026-06-16
  • Contact: Shuyao Lu E-mail:lwhope@jxnu.edu.cn;lusy68@jxnu.edu.cn;497344239@qq.com
  • Supported by:
    NSFC(12271223);NSF of Jiangxi Province(20252BAC230002);NSF of Jiangxi Province(20242BAB26001);Double-high talents in Jiangxi Province, Graduate Student Innovation Fund of Jiangxi Provincial Department of Education(YC2024-B102)

Abstract:

By penalized methods, we investigate the existence and concentration of normalized solutions to the following saturable Schrödinger equation

$-\Delta u + V(\varepsilon x)u=\lambda u -\Gamma \frac{u^2}{1 + u^2}u, \quad x\in\mathbb{R}^{2},\nonumber$

with the potential satisfying a local type assumption, where $\varepsilon$ denotes the Planck constant, $\Gamma<0$ is a coupling constant.

Key words: saturable Schr?dinger equations, penalized methods, normalized solutions.

CLC Number: 

  • O175.25
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