摘要
讨论一类具有脉冲接种和急慢性阶段的流行病模型.证明了系统无病周期解的存在唯一性,并且得到当阈值R<1时,系统无病周期解是全局吸引的.
An epidemic model with impulsive vaccination and chronic stage is studied,the existence and uniqueness of the disease-free periodic solution are discussed, and it is proved that the disease-free periodic solution is a global attractor if the threshold value R is less than one.
出处
《信阳师范学院学报（自然科学版）》
CAS
2010年第4期485-487,624,共4页
Journal of Xinyang Normal University(Natural Science Edition)
基金
国家自然科学基金项目(10771179)
关键词
脉冲免疫
急慢性阶段
全局吸引
impulsive vaccination
infection-age
global attractor
