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The linear stability of shock waves for the nonlinear Schrödinger-Inviscid Burgers system

We investigate the coupling between the nonlinear Schrödinger equation and the inviscid Burgers equation, a system which models interactions between short and long waves, for instance in fluids. Well-posedness for the associated Cauchy problem remains a difficult open problem, and we tackle it here via a linearization technique. Namely, we establish a linearized stability theorem for the Schrödinger--Burgers system, when the reference solution is an entropy--satisfying shock wave to Burgers equation. Our proof is based on suitable energy estimates and on properties of hyperbolic equations with discontinuous coefficients. Numerical experiments support and expand our theoretical results.

preprint2012arXivOpen access
Paulo AmorimJoao-Paulo DiasMario FigueiraPhilippe G. LeFloch
math.APmath.NA
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Paulo AmorimJoao-Paulo DiasMario FigueiraPhilippe G. LeFloch

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