Dynamics of a reaction–diffusion SIRS model with general incidence rate in a heterogeneous environment

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Abstract

In this paper, we study a diffusive SIRS-type epidemic model with transfer from the infectious to the susceptible class. Our model includes a general nonlinear incidence rate and spatially heterogeneous diffusion coefficients. We compute the basic reproduction number R of our model and establish the global stability of the disease-free steady state when R< 1. Furthermore, we study the uniform persistence when R> 1 and perform a bifurcation analysis for a special case of our model. Some numerical simulations are presented to illustrate the dynamics of the solutions as the model parameters are varied.

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Avila-Vales, E., & Pérez, Á. G. C. (2022). Dynamics of a reaction–diffusion SIRS model with general incidence rate in a heterogeneous environment. Zeitschrift Fur Angewandte Mathematik Und Physik, 73(1). https://doi.org/10.1007/s00033-021-01645-0

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