IMPLICATION OF AGE-STRUCTURE ON THE DYNAMICS OF LOTKA VOLTERRA EQUATIONS

Affiliation auteursAffiliation ok
TitreIMPLICATION OF AGE-STRUCTURE ON THE DYNAMICS OF LOTKA VOLTERRA EQUATIONS
Type de publicationJournal Article
Year of Publication2019
AuteursPerasso A, Richard Q
JournalDIFFERENTIAL AND INTEGRAL EQUATIONS
Volume32
Pagination91-120
Date PublishedJAN-FEB
Type of ArticleArticle
ISSN0893-4983
Résumé

In this article, we study the behavior of a nonlinear age structured predator-prey model that is a generalization of Lotka-Volterra equations. We prove global existence, uniqueness and positivity of the solution using a semigroup approach. We make some analytically explicit thresholds that ensure, or not depending of their values, the boundedness of the solution and time asymptotic stability of equilibria. The latter theoretical results and their limits are enlightened by simulations.