A partial differential equation model with age-structure and nonlinear recidivism: Conditions for a backward bifurcation and a general numerical implementation

 

Gespeichert in:
Bibliographische Detailangaben
Autoren: Sánchez Peña, Fabio Ariel, Calvo Alpízar, Juan Gabriel, Segura Ugalde, Esteban, Feng, Zhilan
Format: artículo original
Publikationsdatum:2019
Beschreibung:We formulate an age-structured three-staged nonlinear partial differential equation model that features nonlinear recidivism to the infected (infectious) class from the temporarily recovered class. Equilibria are computed, as well as local and global stability of the infection-free equilibrium. As a result, a backward-bifurcation exists under necessary and sufficient conditions. A generalized numerical framework is established and numerical experiments are explored for two positive solutions to exist in the infectious class.
Land:Kérwá
Institution:Universidad de Costa Rica
Repositorio:Kérwá
Sprache:Inglés
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/83420
Online Zugang:https://www.sciencedirect.com/science/article/pii/S0898122119303244
https://hdl.handle.net/10669/83420
Stichwort:Backward bifurcation
Age-structured model
Epidemic models
Finite difference methods