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Mathematics   > Home   > Advances in Pure and Applied Mathematics   > Forthcoming papers   > Article

[FORTHCOMING] Traveling wave speeds of bistable reaction-diffusion systems with drift perturbation

[À PARAITRE] Vitesses des ondes progressives dans les systèmes de réaction-diffusion bistables avec perturbations


Fathi Dkhil
Université Tunis El Manar
Tunisia

Bechir Mannoubi
Ecole Polytechique Privée de Tunis
Tunisia



Validated on 29 September 2026   DOI : TBA

Abstract

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This work deals with traveling waves solutions of bistable reaction-diffusion systems in infinite cylinders. It is known that unique, stable traveling fronts exist for bistable systems. Here we are concerned with the traveling wave speed and how small perturbations affect the speed of the original problem. Using a mini-max variational formula, we prove an asymptotic expansion of the traveling wave speed and we determine the exact value of the first-order coefficient of this expansion.

This work deals with traveling waves solutions of bistable reaction-diffusion systems in infinite cylinders. It is known that unique, stable traveling fronts exist for bistable systems. Here we are concerned with the traveling wave speed and how small perturbations affect the speed of the original problem. Using a mini-max variational formula, we prove an asymptotic expansion of the traveling wave speed and we determine the exact value of the first-order coefficient of this expansion.

Reaction-diffusion equations traveling wave speed drift perturbation bistable equations

Reaction-diffusion equations traveling wave speed drift perturbation bistable equations

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