Short-wave transverse instabilities of line solitons of the two-dimensional hyperbolic nonlinear Schrödinger equation
2014
We prove that line solitons of the two-dimensional hyperbolic nonlinear Schrodinger equation are unstable under transverse perturbations of arbitrarily small periods, i.e., short waves. The analysis is based on the construction of Jost functions for the continuous spectrum of Schrodinger operators, the Sommerfeld radiation conditions, and the Lyapunov-Schmidt decomposition. We derive precise asymptotic expressions for the instability growth rate in the limit of short periods.
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