| HAL : hal-00014486, version 1 |
| arXiv : math.AP/0511687 |
| Code IRD Horizon : PAR00002979 |
| Fiche détaillée | Récupérer au format |
|
|
|
|
| On a New Mechanism of Pattern Formation in Population Dynamics |
|
|
| Stéphane Génieys 1Vitaly Volpert 1 |
|
|
| (25/11/2005) |
|
|
| We study a reaction-diffusion equation with an integral term describing nonlocal consumption of resources. We show that a homogeneous equilibrium can lose its stability resulting in appearance of stationary spatial structures. It is a new mechanism of pattern formation in population dynamics that can explain emergence of biological species due to intra-specific competition and random mutations.Travelling waves connecting an unstable homogeneous equilibrium and a periodic in space stationary solution are studied numerically. |
|
|
|
|
|
|
|
|
|
|
| 1 : | Institut Camille Jordan (ICJ) |
| CNRS : UMR5208 – Université Claude Bernard - Lyon I – Ecole Centrale de Lyon – Institut National des Sciences Appliquées (INSA) - Lyon | |
| 2 : | Modélisation mathématique et informatique de systèmes complexes naturels, biologiques ou sociaux (GEODES) |
| Institut de recherche pour le développement [IRD] | |
|
|
|
|
|
|
|
|
| Domaine | : | Mathématiques/Equations aux dérivées partielles |
|
|
| population dynamics – evolution – pattern formation – nonlocal interaction – integro-differential equations – wave propagation |
|
|
| Liste des fichiers attachés à ce document : | ||||||||||
|
|
|
| hal-00014486, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00014486 | |
| oai:hal.archives-ouvertes.fr:hal-00014486 | |
| Contributeur : Vitaly Volpert | |
| Soumis le : Lundi 28 Novembre 2005, 16:04:02 | |
| Dernière modification le : Mercredi 11 Avril 2007, 15:41:13 | |