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arXiv 2008.11571nlin.PS
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格点上强非线性Gardner型方程的波

Waves in Strongly Nonlinear Gardner-like Equations on a Lattice

Philip Rosenau, Arkady Pikovsky

摘要:

我们介绍和研究一个家庭的晶格方程可以被看作是一个强非线性的离散扩展的加德纳方程,或非凸变量的Lotka-Volterra链。它们看似简单的形式支持了一个非常丰富的复杂孤立模式家族。这些模式中的一些也在准连续再现中发现,但更有趣的是,像交错的孤波对,或者可能自发或由于碰撞而反转方向的波,是离散领域的内在特征。

英文摘要:

We introduce and study a family of lattice equations which may be viewed either as a strongly nonlinear discrete extension of the Gardner equation, or a non-convex variant of the Lotka-Volterra chain. Their deceptively simple form supports a very rich family of complex solitary patterns. Some of these patterns are also found in the quasi-continuum rendition, but the more intriguing ones, like interlaced pairs of solitary waves, or waves which may reverse their direction either spontaneously or due a collision, are an intrinsic feature of the discrete realm.

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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