ANALYSIS OF AN SI EPIDEMIC MODEL WITH NONLINEAR TRANSMISSION AND STAGE STRUCTURE  

作　　者：陆忠华 jupiter.cnc.ac.cn 高淑京 l63.net 陈兰荪 math08.math.ac.cn 

机构地区：[1]Supercomputing Center of Computer Network Information Center, Chinese Academy of Sciences, Beijing 100080, China, E-mail:zhlu [2]Department of Mathematics, Guangzhou University, Guangzhou 510405, China, E-mail:gaosjmath [3]Institute of Mathematics, Academy of Mathematics & System Sciences, Academia Sinica, Beijing 100080, China, E-mail:lschen

出　　处：《Acta Mathematica Scientia》2003年第4期440-446,共7页数学物理学报（B辑英文版）

基　　金：This work is supported by National Natural Science Foundation of China (10171106);the Special Fund for Major State Basic Research Projects (G1999032805)

摘　　要：A disease transmission model of SI type with stage structure is formulated. The stability of disease free equilibrium, the existence and uniqueness of an endemic equilibrium, the existence of a global attractor are investigated.A disease transmission model of SI type with stage structure is formulated. The stability of disease free equilibrium, the existence and uniqueness of an endemic equilibrium, the existence of a global attractor are investigated.

关 键 词：SI epidemic model THRESHOLD disease free equilibrium endemic equilibrium global attractor 

分 类 号：R181.3[医药卫生—流行病学]