Integrability of Differential-Difference Equations with Discrete Kinks

Details Integrability of Differential-Difference Equations with Discrete Kinks Integrability of Differential-Difference Equations with Discrete Kinks

2010-10-30

arxiv.org/abs/1011.0068v1

Nonlinear Sciences

Exactly Solvable and Integrable Systems

submitted to the Proceedings of the workshop "Nonlinear Physics: Theory and Experiment.VI" in a special issue di Theoretical a

Scientific paper

In this article we discuss a series of models introduced by Barashenkov, Oxtoby and Pelinovsky to describe some discrete approximations to the \phi^4 theory which preserve travelling kink solutions. We show, by applying the multiple scale test that they have some integrability properties as they pass the A_1 and A_2 conditions. However they are not integrable as they fail the A_3 conditions.

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