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arXiv · 2007.01577

Non dispersive solutions of the generalized KdV equations are typically multi-solitons

Xavier Friederich
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Abstract

We consider solutions of the generalized Korteweg-de Vries equations (gKdV) which are non dispersive in some sense (in the spirit of [18]) and which remain close to multi-solitons. We show that these solutions are necessarily pure multi-solitons. For the Korteweg-de Vries equation (KdV) and the modified Korteweg-de Vries equation (mKdV) in particular, we obtain a characterization of multi-solitons and multi-breathers in terms of non-dispersion.

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Xavier Friederich. 2020-07-03. Non dispersive solutions of the generalized KdV equations are typically multi-solitons. https://arxiv.org/abs/2007.01577

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