Mathematics – Analysis of PDEs
Scientific paper
2011-10-23
Mathematics
Analysis of PDEs
26 pages
Scientific paper
We consider the cubic Szego equation perturbed by a small Toeplitz potential
(natural generalization of a multiplicative potential) and having as initial
condition a soliton of the unperturbed equation. We show that the solution
preserves the soliton shape for a long time, and we determine the effective
ODEs satisfied by the modulation parameters of the soliton.
Pocovnicu Oana
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