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摘要:
In this paper, a class of discrete deterministic SIR epidemic model with vertical and horizontal transmission is studied. Based on the population assumed to be a constant size, we transform the discrete SIR epidemic model into a planar map. Then we find out its equilibrium points and eigenvalues. From discussing the influence of the coefficient parameters effected on the eigenvalues, we give the hyperbolicity of equilibrium points and determine which point is saddle, node or focus as well as their stability. Further, by deriving equations describing flows on the center manifolds, we discuss the transcritical bifurcation at the non-hyperbolic equilibrium point. Finally, we give some numerical simulation examples for illustrating the theoretical analysis and the biological explanation of our theorem.
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篇名 The Dynamic Properties of a Deterministic SIR Epidemic Model in Discrete-Time
来源期刊 应用数学(英文) 学科 数学
关键词 EPIDEMIC Model Equilibrium Point TRANSCRITICAL Bifurcation Center MANIFOLD HYPERBOLICITY
年,卷(期) 2015,(10) 所属期刊栏目
研究方向 页码范围 1665-1675
页数 11页 分类号 O1
字数 语种
DOI
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研究主题发展历程
节点文献
EPIDEMIC
Model
Equilibrium
Point
TRANSCRITICAL
Bifurcation
Center
MANIFOLD
HYPERBOLICITY
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研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
应用数学(英文)
月刊
2152-7385
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
1878
总下载数(次)
0
总被引数(次)
0
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