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On the asymptotic reduction to the multidimensional nonlinear Schrodinger equation

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arxiv math-ph/9907003 v1 pith:IN7SSILF submitted 1999-07-02 math-ph math.APmath.MP

classification math-phmath.APmath.MP
keywords equationasymptoticmultidimensionalnonlinearsolutionproblemrespectschrodinger
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abstract

The problem on the asymptotics for the solution of multidimensional nonlinear Boussinesq equation with respect to a small parameter $\ve$ is considered. The asymptotic expansion of the solution of this problem with respect to $\ve\to0$ for long times $t\sim {\cal O}(\ve^{-2})$ is constructed and justified. The leading terms of the asymptotic solution are defined from the multidimensional nonlinear Schrodinger equation and from the linear homogeneous wave equation.

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  1. Dispersive-Dissipative estimates for Boussinesq and other generalized wave equations

    math.AP 2026-05 unverdicted novelty 4.0 of 10

    Derives dispersive-dissipative estimates for a general class of wave-type equations including the viscous Boussinesq, relating phase function geometry and frequency degeneracies to decay rates influenced by dissipation.

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