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

 

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Autores: Sánchez Peña, Fabio Ariel, Calvo Alpízar, Juan Gabriel, Segura Ugalde, Esteban, Feng, Zhilan
Formato: artículo original
Data de Publicação:2019
Descrição: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.
País:Kérwá
Recursos:Universidad de Costa Rica
Repositorio:Kérwá
Idioma:Inglés
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/83420
Acesso em linha:https://www.sciencedirect.com/science/article/pii/S0898122119303244
https://hdl.handle.net/10669/83420
Palavra-chave:Backward bifurcation
Age-structured model
Epidemic models
Finite difference methods