Article Dans Une Revue Journal of Mathematical Biology Année : 2014

Convergence to a pulsating travelling wave for an epidemic reaction-diffusion system with non-diffusive susceptible population

Thomas Giletti

Résumé

In this work we study the asymptotic behaviour of the Kermack- McKendrick reaction-diffusion system in a periodic environment with nondiffusive susceptible population. This problem was proposed by Kallen et al. as a model for the spatial spread for epidemics, where it can be reasonable to assume that the susceptible population is motionless. For arbitrary dimensional space we prove that large classes of solutions of such a system have an asymptotic spreading speed in large time, and that the infected population has some pulse-like asymptotic shape. The analysis of the one-dimensional problem is more developed, as we are able to uncover a much more accurate description of the profile of solutions. Indeed, we will see that, for some initially compactly supported infected population, the profile of the solution converges to some pulsating travelling wave with minimal speed, that is to some entire solution moving at a constant positive speed and whose profile’s shape is periodic in time.

Fichier principal
Vignette du fichier
DucrotGiletti_jmb_revised.pdf (202 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Licence

Dates et versions

hal-03162052 , version 1 (26-08-2022)

Licence

Identifiants

Citer

Arnaud Ducrot, Thomas Giletti. Convergence to a pulsating travelling wave for an epidemic reaction-diffusion system with non-diffusive susceptible population. Journal of Mathematical Biology, 2014, 69 (3), pp.533-552. ⟨10.1007/s00285-013-0713-3⟩. ⟨hal-03162052⟩
77 Consultations
210 Téléchargements

Altmetric

Partager

  • More