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一类具扩散的SIR传染病模型的稳定性分析

Stability Analysis of an SIR Epidemic Model with Diffusion
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摘要 研究一类具有空间扩散的SIR传染病模型,通过讨论线性化方程的特征值得到该模型的染病平衡点是局部稳定的,并利用Lyapunov函数得到该平衡点全局渐近稳定的一个充分条件. An SIR epidemic model with spatial diffusion is investigated. Local stability of the endemic equilibri- um of the epidemic model is presented by analyzing eigenvalues corresponding to linearization equation. A suffi- cient condition is obtained for the global asymptotic stability of the endemic equilibrium by Lyapunov function method.
作者 朱道宇
出处 《常熟理工学院学报》 2012年第10期45-50,共6页 Journal of Changshu Institute of Technology
基金 贵州民族大学校级科研基金资助项目(201202)
关键词 传染病模型 平衡点 渐近稳定 epidemic model equilibrium asymptotic stability
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参考文献8

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