Travelling waves in invasion processes with pathogens
DUCROT, Arnaud
Institut de Mathématiques de Bordeaux [IMB]
Tools of automatic control for scientific computing, Models and Methods in Biomathematics [ANUBIS]
Institut de Mathématiques de Bordeaux [IMB]
Tools of automatic control for scientific computing, Models and Methods in Biomathematics [ANUBIS]
LANGLAIS, Michel
Institut de Mathématiques de Bordeaux [IMB]
Tools of automatic control for scientific computing, Models and Methods in Biomathematics [ANUBIS]
Institut de Mathématiques de Bordeaux [IMB]
Tools of automatic control for scientific computing, Models and Methods in Biomathematics [ANUBIS]
DUCROT, Arnaud
Institut de Mathématiques de Bordeaux [IMB]
Tools of automatic control for scientific computing, Models and Methods in Biomathematics [ANUBIS]
Institut de Mathématiques de Bordeaux [IMB]
Tools of automatic control for scientific computing, Models and Methods in Biomathematics [ANUBIS]
LANGLAIS, Michel
Institut de Mathématiques de Bordeaux [IMB]
Tools of automatic control for scientific computing, Models and Methods in Biomathematics [ANUBIS]
< Reduce
Institut de Mathématiques de Bordeaux [IMB]
Tools of automatic control for scientific computing, Models and Methods in Biomathematics [ANUBIS]
Language
en
Article de revue
This item was published in
Mathematical Models and Methods in Applied Sciences. 2008, vol. 18, p. 325-349
World Scientific Publishing
English Abstract
This work is devoted to the study of a singular reaction--diffusion system arising in modelling the introduction of a lethal pathogen within an invading host population. In the absence of the pathogen the host population ...Read more >
This work is devoted to the study of a singular reaction--diffusion system arising in modelling the introduction of a lethal pathogen within an invading host population. In the absence of the pathogen the host population exhibits a bistable dynamics (or Allee effect). Earlier numerical simulations of the singular SI model under consideration have exhibited stable travelling waves and also, under some circumstances, a reversal of the wave front speed due to the introduction of the pathogen. Here we prove the existence of such travelling wave solutions, study their linear stability and give analytical conditions yielding a reversal of the wave front speed, that is the invading host population may eventually retreat following the introduction of the lethal pathogen.Read less <
English Keywords
singular reaction-diffusion system
travelling waves
linear stability
front reversal
invasion and persistence
SI epidemic model
Origin
Hal imported