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arXiv 2603.09263math.AP
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$L^2$-收缩性与KdV-伯格斯方程的激波

$L^2$-contraction of Shock Waves for KdV-Burgers Equation

University of Kansas(堪萨斯大学);Korea Institute for Advanced Science (KIAS)(韩国高等科学研究院);Korea Advanced Institute of Science and Technology(韩国科学技术院)

Geng Chen, Namhyun Eun, Moon-Jin Kang, Yannan Shen

AI总结:

本文研究了KdV-伯格斯方程中粘性色散激波的$L^2$收缩性,证明了其时间渐进稳定性,并探讨了振荡激波的稳定性及结构性质。

摘要:

KdV-伯格斯方程是一个典型的模型,用于描述非线性、粘性和色散之间的相互作用,并且它允许粘性色散激波作为行波解。本文中,我们建立了在任意大的扰动下,粘性色散激波的$L^2$收缩性质,直到一个时间依赖的位移。这导致了时间渐进稳定性和关于粘性和色散强度的统一估计。我们为单调激波给出了证明,并介绍了[6]中关于振荡激波稳定性及结构性质的互补工作。

英文摘要:

The KdV-Burgers equation is a canonical model describing the interplay between nonlinearity, viscosity and dispersion, and it admits viscous-dispersive shocks as traveling wave solutions. In this paper, we establish an $L^2$-contraction property for viscous-dispersive shocks under arbitrarily large perturbations, up to a time-dependent shift. This yields time-asymptotic stability and uniform estimates with respect to the strengths of viscosity and dispersion. We present the proof for the monotone shocks, and introduce the companion work in [6] on the stability and structural properties of oscillatory shocks.

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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