文章基本信息

标题：Qualitative Analysis of Both Hyperbolic and Non-hyperbolic Equilibria of a SIRS Model with Logistic Growth Rate of Susceptibles and Inhibitory Effect in the Infection
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作者：Jayanta Kumar Ghosh ; Uttam Ghosh ; Susmita Sarkar 等
期刊名称：Computational Methods in Science and Technology
印刷版ISSN：1505-0602
出版年度：2018
卷号：24
期号：4
页码：285-300
DOI：10.12921/cmst.2018.0000029
出版社：Poznan Supercomputing and Networking Center
摘要：This paper describes a SIRS model with the logistic growth rate of susceptible class. The effect of an inhibitory factor in the infection is also taken into consideration. We have analysed local as well as global stabilities of the equilibrium points (both hyperbolic and non-hyperbolic) of the system and investigated the Transcritical bifurcation at the disease free equilibrium point with respect to the inhibitory factor. The occurrence of Hopf bifurcation of the system is examined and it was observed that this Hopf bifurcation is either supercritical or subcritical depending on parameters. Some numerical simulations are carried out for the validity of theoretical results.
其他关键词：inhibitory factors, logistic growth, losses immunity, global stability, hopf bifurcation, transcritical bifurcation, centre manifold theory