机构地区: 赣南师范学院数学与计算机科学学院
出 处: 《赣南师范学院学报》 2014年第6期1-6,共6页
摘 要: 本文建立了一类具有脉冲和双时滞的离散SIRS传染病模型,并给出模型无病平衡点全局吸引和疾病持久的充分条件. In this paper, a discretized SIRS epidemic model with pulse vaccination and two time delays are taken in- to consideration. Sufficient conditions for global attractivity of an infection-free periodic solution and permanence of the model are obtained.