Global Stability of an SEIS Epidemic Model with Nonlinear Incidence
An SEIS epidemic model with nonlinear incidence is investigated. For this model, the threshold ensuring the existence of the endemic equilibrium is found, the backward bifurcation may happen for some parameter values. The global dynamical behaviors are analyzed completely.
nonlinear incidence equilibrium satbility backward bifurcation
Jianya Yang Jianquan Li Yiqun Li
Department of Applied Mathematics, Yuncheng University, Shanxi Yuncheng 044000, China Department of Applied Mathematics and Physics, Air Force Engineering University, Xian 710051, China
国际会议
山东泰安
英文
256-259
2008-07-25(万方平台首次上网日期,不代表论文的发表时间)