Abdelkrim Kina

Global Dynamics and Complete Phase Portrait Classification of a Nonlinear SIRS Model with Saturated Incidence

This paper investigates the global dynamics of a nonlinear Susceptible–Infective–Recovered–Susceptible (SIRS) epidemic model with a nonmonotonic saturated incidence rate. By reducing the model to a planar cubic polynomial differential system, we perform a complete qualitative ana...