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Perturbation Theory for the Double-Sine-Gordon Equation

Constantine A. Popov
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Abstract

This paper presents the perturbation theory for the double--sine--Gordon equation. We received the system of differential equations that shows the soliton parameters modification under perturbation's influence. In particular case $λ=0$ the results of the research transform into well-known perturbation theory for the sine--Gordon equation.

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Constantine A. Popov. 2004-06-01. Perturbation Theory for the Double-Sine-Gordon Equation. https://arxiv.org/abs/nlin/0312054

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