具有超级感染和Logistic增长的两菌株传染病模型
A Two-strain Epidemic Model with Super-infection and Logistic Growth
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摘要: 研究一类具有Logistic增长和超级感染的两菌株传染病模型.首先,证明模型解的非负性和有界性;其次,讨论平衡点的存在性和局部稳定性;最后,运用Lyapunov函数方法与LaSalle不变集原理得出其全局稳定性,并通过数值模拟验证了理论结果.Abstract: The dynamics of a two-strain model with superinfection and Logistic growth is formulated. Firstly, the nonnegativity and boundedness of the solution of the model is presented; Secondly, the existence and local stability of the equilibria are discussed; Finally, by constructing Lyapunov function and LaSalle invariant principle, the global stability of such equilibria is obtained. Numerical simulations are carried out to validate the theoretical results.