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arXiv 2008.05006math.AP
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非线性wave equations行波解的稳定性和不稳定性

Stability and instability of traveling wave solutions to nonlinear wave equations

John Anderson, Samuel Zbarsky

摘要:

本文研究了满足零条件的半线性波动方程组平面波解的稳定性和不稳定性。我们确定了一个条件,使我们能够证明的全球非线性渐近稳定性的平面波。全局稳定性的证明要求我们分析背景平面波与扰动相互作用的几何关系。当这个条件不满足,我们能够证明线性不稳定性假设一个额外的通用条件。线性不稳定性是用几何光学分析来表示的。

英文摘要:

In this paper, we study the stability and instability of plane wave solutions to semilinear systems of wave equations satisfying the null condition. We identify a condition which allows us to prove the global nonlinear asymptotic stability of the plane wave. The proof of global stability requires us to analyze the geometry of the interaction between the background plane wave and the perturbation. When this condition is not met, we are able to prove linear instability assuming an additional genericity condition. The linear instability is shown using a geometric optics ansatz.

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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