Acta mathematica scientia,Series A ›› 2024, Vol. 44 ›› Issue (2): 376-383.

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The Initial Value Problem for a Modified Camassa-Holm Equation with Cubic Nonlinearity

Zhang Xin1(),Wu Xinglong2,*()   

  1. 1Department of Mathematical, Wuhan University of Technology, Wuhan 430070
    2Center for Mathematical Sciences, Wuhan University of Technology, Wuhan 430070
  • Received:2023-04-29 Revised:2023-09-05 Online:2024-04-26 Published:2024-04-07
  • Supported by:
    NSFC(11771442);NSFC(11971024)

Abstract:

In this paper, by Kato's theory of semigroup and the definition of the dissipative operator, we study the initial value problem of a modified Camassa-Holm equation with cubic nonlinearity, and establish the existence and uniqueness of its solutions in Sobolev space $ H^{s,p}(\mathbb{R}) $, $ s\ge 1 $, $ p\in (1,\infty ) $, which extend the well-posedness of its solutions in Besov space $ B_{p,r}^{s}(\mathbb{R}) $ $ (p,\ r\ge 1,\ s> \max \{2+\frac{1}{p},\frac{5}{2}\}) $ obtained by Fu et al. (J Differ Equations, 2013, 255: 1905-1938).

Key words: The modified Camassa-Holm equation, Well-posedness, Dissipative operator, Kato's theory of semigroup

CLC Number: 

  • O175.2
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