Acta mathematica scientia,Series A ›› 2025, Vol. 45 ›› Issue (5): 1463-1476.

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Analytical Smoothing Effect on Cauchy Problem of Nonlinear Hyperbolic Schrödinger Equation

Liutao Guo(),Chaojiang Xu*()   

  1. School of mathematics, Nanjing University of Aeronautics and Astronautics, Nanjing 211100
  • Received:2024-07-10 Revised:2025-07-18 Online:2025-10-26 Published:2025-10-14
  • Supported by:
    NSFC(12031006);Fundamental Research Funds for the Central Universities of China

Abstract:

In this paper, we study the analytical smoothing effect of Cauchy problem for a class of nonlinear hyperbolic Schrödinger equation. For the Cauchy initial value of exponential decay given in a finite Sobolev space, we prove that the solution of the equation is analytic with respect to both time and space variables when $t\neq0$. Therefore, the hyperbolic Schrödinger equation has analytical smoothing properties similar to the classical Schrödinger equation.

Key words: Cauchy problem, Quasi-differential operator, analytical smoothing effect, hyperbolic Schrödinger equation

CLC Number: 

  • O175.2
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