Inelastic interaction of nearly equal solitons for the quartic gKdV equation

2009/10/16 by Martel, Yvan, Merle, Frank · 2 citations
#Analysis of PDEs (math.AP) #FOS: Mathematics

paper · doi:10.48550/arxiv.0910.3204

Abstract

This paper presents a complete description of the interaction of two solitons with nearly equal speeds for the quartic (gKdV) equation. By constructing an approximate solution of the problem, we prove that at the main order, the two solitons are preserved by the interaction and that for all time they are separated by a large distance, as in the case of the integrable KdV equation in this regime. However, unlike in the integrable case, we prove that the collision is not perfectly elastic.

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• On the asymptotic dynamics for the L²-supercritical gKDV equation
• Existence of multi-solitons with any parameters for the 5D energy critical wave equation

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