Chinese Quarterly Journal of Mathematics ›› 2016, Vol. 31 ›› Issue (3): 237-247.doi: 10.13371/j.cnki.chin.q.j.m.2016.03.002

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Global Analysis of an SEIR Epidemic Model with Nonlinear Incidence Rates

  

  1. School of Science,Xi’an Polytechnic University
  • Received:2015-04-19 Online:2016-09-30 Published:2020-11-04
  • About author:JIA Ying(1990-), female, native of Hanzhong, Shannxi, a graduate student of Xi'an Polytechnic University, engages in differential equation and its application; LIU Jun-li(1981-), female, native of Puyang, Henan, an associate professor of Xi'an Polytechnic University, Ph.D., engages in biomathematics.
  • Supported by:
    Supported by the National Natural Science Foundation of China(11101323); Supported by the Natural Science Basic Research Plan in Shaanxi Province of China(2014JQ1038); Supported by the Xi’an Polytechnic University Innovation Fund for Graduate Students(CX201608);

Abstract: In this paper,an SEIR model with nonlinear incidence rates are studied.The basic reproduction number R0 characterizes the disease transmission dynamics: if R0≤ 1,the disease-free equilibrium is globally asymptotically stable and the disease always dies out,if R0> 1 then there is a unique endemic equilibrium which is globally asymptotically stable and the disease persists. 

Key words: SEIR model, nonlinear incidence rate, compound matrices, global stability

CLC Number: