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Title: Steady gap solitons in a coupled Korteweg-de Vries system: A dynamical systems approach
Authors: Grimshaw, Roger 
Christodoulides, Paul 
Keywords: Gap solitons;Korteweg-de Vries equations;Normal forms;Solitary waves
Category: Electrical Engineering, Electronic Engineering, Information Engineering
Field: Engineering and Technology
Issue Date: 2010
Publisher: Elsevier
Source: Physica D: Nonlinear Phenomena, 2010, Volume 239, Issue 10, Pages 635-639
Abstract: In this article we search for steady gap soliton solutions of a set of coupled Korteweg-de Vries equations. These solutions arise whenever there is a narrow gap in the linear spectrum. For small amplitudes we use a dynamical systems approach combined with a normal form analysis to find a canonical equation set. When truncated at the cubic order in amplitude we can exhibit explicit solutions which agree with those found earlier by an asymptotic analysis. We argue that two of these solutions persist under perturbation by the higher-order terms.
ISSN: 01672789
Rights: © 2010 Elsevier B.V. All rights reserved.
Type: Article
Appears in Collections:Άρθρα/Articles

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