数学物理学报 ›› 2020, Vol. 40 ›› Issue (1): 221-233.

• 论文 • 上一篇    下一篇

一类具有随机扰动的非自治SIRI流行病模型的动力学行为

曹忠威1(),文香丹2,*(),冯微3,祖力4   

  1. 1 吉林财经大学应用数学学院 长春 130117
    2 延边大学数学系 吉林延吉 130002
    3 吉林大学中日联谊医院 长春 130033
    4 海南师范大学数学与统计学院 海口 571158
  • 收稿日期:2018-08-29 出版日期:2020-02-26 发布日期:2020-04-08
  • 通讯作者: 文香丹 E-mail:caozw963@sina.com;xdwen0502@yeah.net
  • 作者简介:曹忠威, E-mail:caozw963@sina.com
  • 基金资助:
    国家自然科学基金(11701209);吉林省科技厅青年基金(20160520110JH);吉林省教育厅(JJKH20180462KJ);海南省教育厅(Hnky2017ZD-14);海南省自然科学基金(119QN205)

Dynamics of a Nonautonomous SIRI Epidemic Model with Random Perturbations

Zhongwei Cao1(),Xiangdan Wen2,*(),Wei Feng3,Li Zu4   

  1. 1 Department of Applied Mathematics, Jilin University of Finance and Economics, Changchun 130117
    2 Department of Mathematics, Yanbian University, Jilin Yanji 130002
    3 Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun 130033
    4 Department of Mathematics and Statistics, Hainan Normal University, Haikou 571158
  • Received:2018-08-29 Online:2020-02-26 Published:2020-04-08
  • Contact: Xiangdan Wen E-mail:caozw963@sina.com;xdwen0502@yeah.net
  • Supported by:
    国家自然科学基金(11701209);吉林省科技厅青年基金(20160520110JH);吉林省教育厅(JJKH20180462KJ);海南省教育厅(Hnky2017ZD-14);海南省自然科学基金(119QN205)

摘要:

该文致力于研究一类随机非自治SIRI流行病模型的动力学问题.利用Lyapunov函数法,证明系统至少存在一个非平凡的正T周期解.此外,该文还建立了疾病灭绝的充分条件,并通过数值模拟验证了理论结果.

关键词: 随机SIRI流行病模型, 周期解, 灭绝性, Lyapunov函数

Abstract:

In this paper, we study the dynamics of a stochastic nonautonomous Susceptible-Infective-Removed-Infective (SIRI) epidemic model. By employing the Lyapunov function method, we show that there exists at least one nontrivial positive T-periodic solution of the system. Moreover, sufficient conditions for extinction of the disease are established. Some numerical simulations are carried out to illustrate the theoretical results.

Key words: Stochastic SIRI epidemic model, Periodic solutions, Extinction, Lyapunov function

中图分类号: 

  • O211.6