Acta mathematica scientia,Series A ›› 2025, Vol. 45 ›› Issue (6): 1928-1941.

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Another Proof on the Existence of Normalized Solution to a Fourth-Order Schrödinger Equation

Mengxia Wu1, Tao Yang1,*(), Hua Zhang2   

  1. 1School of Mathematical Sciences, Zhejiang Normal University, Zhejiang Jinhua 321004
    2Yunxi No.1 Senior High School, Hubei Shiyan 442600
  • Received:2025-05-14 Revised:2025-07-18 Online:2025-12-26 Published:2025-11-18
  • Contact: Tao Yang E-mail:yangtao@zjnu.edu.cn
  • Supported by:
    NSFC(12201564);Scientific Research Fund of Zhejiang Normal University(YS304221948)

Abstract:

In this paper, we consider the existence and asymptotic properties of normalized solutions to a fourth-order Schrödinger equation with a positive second-order dispersion coefficient. In the mass supercritical regime, we study two types of local minimization problems and prove their equivalence in order to avoid the dependence of mass with respect to the locally constraint radius. Then, we prove the compactness of the corresponding minimizing sequences and the existence of ground states. Furthermore, by utilizing subtle energy estimates and analysis, we derive the asymptotic behavior of the ground state and the Lagrange multiplier as the parameter vanishes. This paper removes the radial symmetry condition in (Sci China Math, 2023, 66: 1237--1262), and provides an alternative but more transparent proof than that of (J Differential Equations, 2022, 330: 1--65).

Key words: fourth-order Schr?dinger equation, normalized solution, local minimization method.

CLC Number: 

  • O175.23
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