arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2112.10366math.APmath-phmath.MPnlin.PSphysics.flu-dyn
收藏

一类广义高阶Camassa-Holm方程峰子解的轨道稳定性

Orbital stability of peakon solutions for a generalized higher-order Camassa-Holm equation

Guoquan Qin, Zhenya Yan, Boling Guo

摘要:

本文研究了二次Camassa-Holm(HOCH)方程的高阶推广形式的广义高阶Camassa-Holm(HOCH)方程的轨道稳定性问题.首先,我们证明了HOCH方程存在整体弱峰子解,并将其与一些光滑的检验函数配对。其次,借助于两个守恒量和sgn不变条件,证明了该峰子解在能量空间中的轨道稳定性,即其形状始终保持近似不变。我们的结果丰富了CH型方程轨道稳定性的研究,有助于更好地理解高阶非线性对色散动力学的影响.

英文摘要:

In this paper, we investigate the orbital stability issue of a generalized higher-order Camassa-Holm (HOCH) equation, which is an higher-order extension of the quadratic CH equation. Firstly, we show that the HOCH equation admits a global weak peakon solution by paring it with ssome smooth test function. Secondly, with the help of two conserved quantities and the non-sgn-changing condition, we prove the orbital stability of this peakon solution in the energy space in the sense that its shape remains approximately the same for all times. Our results enrich the research of the orbital stability for the CH-type equations and are useful to better understand the impact of higher-order nonlinearities on the dispersion dynamics.

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。

↑