Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1895938 | Chaos, Solitons & Fractals | 2011 | 5 Pages |
In this paper, we establish the global stability conditions of classic SIS, SIR and SIRS epidemic models with constant recruitment, disease-induced death and standard incidence rate. We will make ingenious linear combination of known functions, common quadratic and Volterra-type, and of a new class of functions, we call composite-Volterra function, for obtain a suitable Lyapunov functions. In particular, for SIRS model we prove the global stability of the endemic equilibrium under a condition of parameters.
► We study the global stability conditions of classic epidemic models. ► The models incorporate disease-induced death and standard incidence rate. ► The analysis has been achieved by construction of novel Lyapunov functions. ► We give a partial answer to open problem of the global stability of SIRS model.