【摘要】 为了研究新型冠状病毒肺炎(简称:新冠肺炎, COVID-19)疫情的传播规律,根据其特点建立一类描述新冠肺炎传播动力学机制的SEIS传染病模型,并应用奇异摄动理论和稳定性理论,给出了新冠肺炎传播的无病平衡点和地方病平衡点全局渐近稳定性的条件,最后通过数值仿真的方法进行分析验证.更多还原

【Abstract】 In order to study the spread of COVID-19, a kind of SEIS model describing the dynamic mechanism of the propagation of COVID-19 was established according to its characteristics. The conditions for the global stability of the disease-free equilibrium and the endemic equilibrium for the propagation of COVID-19 were provided by using the singular perturbation theory and the stability theory. Finally, numerical simulation was used to analyze and verify the results.更多还原