On equilibria stability in an epidemiological SIR model with recovery-dependent infection rate
ABSTRACT We consider an epidemiological SIR model with an infection rate depending on the recovered population. We establish sufficient conditions for existence, uniqueness, and stability (local and global) of endemic equilibria and consider also the stability of the disease-free equilibrium. We show that, in contrast with classical SIR models, a system with a recovery-dependent infection rate can have multiple endemic stable equilibria (multistability) and multiple unstable saddle points of equilibria. We establish conditions for the occurrence of these phenomena and illustrate the results with some examples.
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| Main Authors: | , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Brasileira de Matemática Aplicada e Computacional
2020
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-84512020000300409 |
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