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arXiv 2402.13620math-phmath.MP
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二分量修正Camassa-Holm方程的Riemann-Hilbert方法

A Riemann-Hilbert approach to the two-component modified Camassa-Holm equation

Kai Xu, Luman Ju, Engui Fan

AI总结:

本文基于Lax对为二分量修正Camassa-Holm方程的Cauchy问题提出了Riemann-Hilbert方法,利用$\bar{\partial}$-最速下降法获得了四种时空区域的长时间渐近近似,并引入统一多跳矩阵分解的技术简化了计算。

摘要:

本文基于Lax对,为二分量修正Camassa-Holm(2-mCH)方程的Cauchy问题发展了Riemann-Hilbert(RH)方法。进一步,通过利用Deift-Zhou最速下降法的$\bar{\partial}$-推广对RH问题进行一系列形变,我们获得了2-mCH方程在四种时空区域中解的长时间渐近近似。特别地,我们引入了一种将多跳矩阵分解统一为一种形式的技术,这可以极大地简化$\bar{\partial}$-最速下降法的计算。

英文摘要:

In this paper, we develop a Riemann-Hilbert (RH) approach to the Cauchy problem for the two-component modified Camassa-Holm (2-mCH) equation based on its Lax pair. Further via a series of deformations to the RH problem by using the $\bar{\partial}$-generalization of Deift-Zhou steepest descent method, we obtain the long-time asymptotic approximations to the solutions of the 2-mCH equation in four kinds of space-time regions. Especially we introduce a technique to unify multi-jump matrix factorizations into one form which can greatly simplify the calculation of the $\bar{\partial}$-steepest descent method.

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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