Browsing by Author "Izzo, G."

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Global dynamics of difference equations for SIR epidemic models with a class of nonlinear incidence rates

Enatsu, Y.; Nakata, Y.; Muroya, Y.; Izzo, G.; Vecchio, A. (2012-12-31)

In this paper, by applying a variation of the backward Euler method, we propose a discrete-time SIR epidemic model whose discretization scheme preserves the global asymptotic stability of equilibria for a class of corresponding ...
Permanence and global stability of a class of discrete epidemic models

Muroya, Y.; Nakata, Y.; Izzo, G.; Vecchio, A. (2011-12-31)

In this paper we investigate the permanence of a system and give a sufficient condition for the endemic equilibrium to be globally asymptotically stable, which are the remaining problems in our previous paper (G. Izzo, Y. ...