A New Estimate Of The Minimal Wave Speed For Travelling Fronts In Reaction-Diffusion-Convection Equations

ELECTRONIC JOURNAL OF QUALITATIVE THEORY OF DIFFERENTIAL EQUATIONS（2018）

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摘要

In this paper we prove a new estimate of the threshold wave speed for travelling wavefronts of the reaction-diffusion-convection equations of the typev(tau) + h(v)v(x) = [D(v)v(x)](x) + f(v)where h is a convective term, D is a positive (potentially degenerate) diffusive term and f stands for a monostable reaction term.

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关键词

reaction-diffusion equations,convective terms,travelling fronts,critical wave speed,singular boundary value problems,heteroclinic solutions

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