Nonlinear Sciences – Exactly Solvable and Integrable Systems
Scientific paper
2007-05-08
Nonlinear Sciences
Exactly Solvable and Integrable Systems
26 pages, 12 figures
Scientific paper
We consider periodic traveling wave solutions to the focusing nonlinear Schrodinger equation (NLS) that have been shown to persist when the NLS is perturbed to the complex Ginzburg-Landau equation (CGL). In particular, we show that these periodic traveling waves are spectrally stable solutions of NLS with respect to periodic perturbations. Furthermore, we use an argument based on the Fredholm alternative to find an instability criterion for the persisting solutions to CGL.
Ivey Thomas
Lafortune Stephane
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