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arXiv 2005.10564math.AP
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双曲型Whitham调制方程在索伯列夫空间中的有效性

Validity of the hyperbolic Whitham modulation equations in Sobolev spaces

Thomas J. Bridges, Anna Kostianko, Sergey Zelik

摘要:

本文证明了周期波列在时间和空间上对散焦非线性薛定谔方程的调制,在自然时间尺度上,可以用双曲型的Whitham调制方程的解来近似。误差估计是基于存在性,唯一性和能量参数,在索伯列夫空间的实直线。证明的一个重要部分是包含对惠特姆理论的高阶修正,以及伴随的高阶能量估计。

英文摘要:

It is proved that modulation in time and space of periodic wave trains, of the defocussing nonlinear Schrödinger equation, can be approximated by solutions of the Whitham modulation equations, in the hyperbolic case, on a natural time scale. The error estimates are based on existence, uniqueness, and energy arguments, in Sobolev spaces on the real line. An essential part of the proof is the inclusion of higher-order corrections to Whitham theory, and concomitant higher-order energy estimates.

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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