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  • Global dynamics of an SI ep...
    Guo, Ke; Ma, Wanbiao

    Mathematical biosciences and engineering : MBE, 2021, Volume: 18, Issue: 1
    Journal Article

    In this paper, we consider a class of SI epidemic model with nonlinear incidence, feedback controls and four different discrete time delays. By skillfully constructing appropriate Lyapunov functionals, and combining Lyapunov-LaSalle invariance principle and Barbalat's lemma, the global dynamics of the model are established. Our results extend and improve related works in the existing literatures.