Author:
Zhou Shouming,Zheng Shanshan
Abstract
<p style='text-indent:20px;'>This paper considers the Cauchy problem for a 2-component Camassa-Holm system</p><p style='text-indent:20px;'><disp-formula> <label/> <tex-math id="FE1"> \begin{document}$ \begin{equation*} m_t = ( u m)_x+ u _xm- v m, \ \ n_t = ( u n)_x+ u _xn+ v n, \end{equation*} $\end{document} </tex-math></disp-formula></p><p style='text-indent:20px;'>where <inline-formula><tex-math id="M1">\begin{document}$ n+m = \frac{1}{2}( u _{xx}-4 u ) $\end{document}</tex-math></inline-formula>, <inline-formula><tex-math id="M2">\begin{document}$ n-m = v _x $\end{document}</tex-math></inline-formula>, this model was proposed in [<xref ref-type="bibr" rid="b2">2</xref>] from a novel method to the Euler-Bernoulli Beam on the basis of an inhomogeneous matrix string problem. The local well-posedness in Sobolev spaces <inline-formula><tex-math id="M3">\begin{document}$ H^s(\mathbb{R})\times H^{s-1}(\mathbb{R}) $\end{document}</tex-math></inline-formula> with <inline-formula><tex-math id="M4">\begin{document}$ s>\frac{5}{2} $\end{document}</tex-math></inline-formula> of this system was investigated through the Kato's theory, then the blow-up criterion for this system was described by the technique on energy methods. Finally, we established the analyticity in both time and space variables of the solutions for this system with a given analytic initial data.</p>
Publisher
American Institute of Mathematical Sciences (AIMS)
Subject
Applied Mathematics,Discrete Mathematics and Combinatorics,Analysis
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