Abstract <p> We obtain an asymptotic approximation to a moving inner layer (front) solution ofan initial–boundary value problem for a singularly perturbed parabolicreaction–diffusion–advection equation with a KPZ-nonlinearity. An asymptotic approximation forthe velocity of the front is found. To prove the existence and uniqueness of a solution, theasymptotic method of differential inequalities is used.</p>

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Front Motion in a Reaction–Diffusion–Advection Problem with a KPZ-Nonlinearity

  • A. O. Orlov

摘要

Abstract

We obtain an asymptotic approximation to a moving inner layer (front) solution ofan initial–boundary value problem for a singularly perturbed parabolicreaction–diffusion–advection equation with a KPZ-nonlinearity. An asymptotic approximation forthe velocity of the front is found. To prove the existence and uniqueness of a solution, theasymptotic method of differential inequalities is used.