将对病人的隔离期作为时滞因素,考虑了一类含时滞的SIQR(susceptible infectives quarantine removed)流行病模型.通过构造恰当的Lyapunov函数,得到了无病平衡点全局稳定以及地方病平衡点局部稳定的结论,讨论了系统周期解的存在条件.
An SIQR (susceptible infectives quarantine removed) epidemic model with a delay corresponding to the quarantine period was considered. By means of constructing proper Lyapunov functions, the results of the global stability of disease free equilibrium and the local stability of epidemic equilibrium were obtained. Furthermore, the conditions under which periodic solution exists for the model were discussed.