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一类离散传染病模型的动力学分析 被引量:3

Dynamic Analysis of Adiscrete Epidemic Model
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摘要 研究了一个具有双线性的SIR传染病模型的动力学行为,通过讨论系数参数确定此类模型平衡点的双曲性和非双曲性,利用中心流形定理研究了平衡点跨临界分岔性质,最后给出跨临界分岔结果的生物学解释。 The dynamical behavior of a SIR epidemic model is studied. The hyperbolicity of equilibrium point is investigated by discussing its coefficient parameters. The center manifold theorem is used to explore the transcritical bifurcation of the model. In the end biological mean of the model is also given.
作者 李明山 刘秀敏 周效良 LI Ming-shan;LIU Xiu-min;ZHOU Xiao-liang(School of Mathematics and Statistics, Lingnan Normal University, Zhanjiang 524048, China)
出处 《广东海洋大学学报》 CAS 2017年第1期101-107,共7页 Journal of Guangdong Ocean University
基金 国家自然科学基金项目(11561019) 广东省创新强校科技重大项目(2014KZDXM065) 广东省攀登计划项目(pdjh2016a0301)
关键词 SIR传染病模型 跨临界分岔 中心流形定理 正规形 SIR epidemic model transcritical bifurcation center manifoldtheorem normal form
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