| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1706008 | Applied Mathematical Modelling | 2009 | 14 Pages |
Abstract
In this paper, a nonautonomous SIRS epidemic model with time delay is studied. We introduce some new threshold values R∗R∗ and R∗R∗ and further obtain the disease will be permanent when R∗>1R∗>1 and the disease extinct when R∗<1R∗<1. Using the method of Liapunov functional, some sufficient conditions are derived for the global attractivity of the system. The known results are extended.
Related Topics
Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Tailei Zhang, Zhidong Teng,