Some discrete SI and SIS epidemic models

• 作 者: 李建全 娄洁 娄梅枝
• 机 构: DepartmentofAppliedMathematicsandPhysics,DepartmentofMathematics,DepartmentofMathematics
• 出 处: 应用数学和力学：英文版
• 发表日期: 2008年1期
• 关键词: 差分方程式 微分方程式 动力学行为 稳定性 discrete epidemic model dynamical behavior fixed point
• 基金项目: Project supported by the National Natural Science Foundation of China （Nos. 10531030, 10701053）, and the Natural Science Foundation of Shanxi Province of China （No. 2005Z010）

<正>The probability is introduced to formulate the death of individuals,the recovery of the infected individuals and incidence of epidemic disease.Based on the assumption that the number of individuals in a population is a constant,discrete-time SI a