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arXiv 2402.04723math.AP
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关于C^k∩W^{k,1}中双分量peakon系统Cauchy问题的适定性

On the well-posedness of the Cauchy problem for the two-component peakon system in $C^k\cap W^{k,1}$

Kenneth H. Karlsen, Yan Rybalko

AI总结:

本文研究带三次非线性且推广Fokas-Olver-Rosenau-Qiao方程的双分量peakon系统,在C^k∩W^{k,1}类中利用拉格朗日坐标方法证明了解的局部适定性,并给出爆破准则。

摘要:

本研究关注具有三次非线性特征的双分量peakon系统的Cauchy问题,限制在类$(m,n)\in C^{k}(\mathbb{R}) \cap W^{k,1}(\mathbb{R})$中,其中$k\in\mathbb{N}\cup\{0\}$。该系统推广了著名的Fokas-Olver-Rosenau-Qiao方程,以及Lou和Qiao提出的如下非局部(双位置)对应形式:$$ \partial_t m(t,x)= \partial_x[m(t,x)(u(t,x)-\partial_xu(t,x)) (u(-t,-x)+\partial_x(u(-t,-x)))], $$ 其中$m(t,x)=\left(1-\partial_{x}^2\right)u(t,x)$。采用基于拉格朗日坐标的方法,我们建立了$C^k\cap W^{k,1}$类中数据到解映射的局部存在性、唯一性和Lipschitz连续性。此外,我们推导了该类中局部解的爆破准则。

英文摘要:

This study focuses on the Cauchy problem associated with the two-component peakon system featuring a cubic nonlinearity, constrained to the class $(m,n)\in C^{k}(\mathbb{R}) \cap W^{k,1}(\mathbb{R})$ with $k\in\mathbb{N}\cup\{0\}$.This system extends the celebrated Fokas-Olver-Rosenau-Qiao equation, and the following nonlocal (two-place) counterpart proposed by Lou and Qiao: $$ \partial_t m(t,x)= \partial_x[m(t,x)(u(t,x)-\partial_xu(t,x)) (u(-t,-x)+\partial_x(u(-t,-x)))], $$ where $m(t,x)=\left(1-\partial_{x}^2\right)u(t,x)$. Employing an approach based on Lagrangian coordinates, we establish the local existence, uniqueness, and Lipschitz continuity of the data-to-solution map in the class $C^k\cap W^{k,1}$. Moreover, we derive criteria for blow-up of the local solution in this class.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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