Dynamical behavior of susceptible-infected-recovered-susceptible epidemic model on weighted networks

被引:9
作者
Wu, Qingchu [1 ]
Zhang, Fei [1 ]
机构
[1] Jiangxi Normal Univ, Coll Math & Informat Sci, Nanchang 330022, Jiangxi, Peoples R China
关键词
Weighted networks; Epidemic spreading; Pairwise approximation; PAIR APPROXIMATION MODELS; SCALE-FREE NETWORKS; COMPLEX NETWORKS; DISEASES; SPREAD; TRANSMISSION; VACCINATION;
D O I
10.1016/j.physa.2017.09.084
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study susceptible-infected-recovered-susceptible epidemic model in weighted, regular, and random complex networks. We institute a pairwise-type mathematical model with a general transmission rate to evaluate the influence of the link-weight distribution on the spreading process. Furthermore, we develop a dimensionality reduction approach to derive the condition for the contagion outbreak. Finally, we analyze the influence of the heterogeneity of weight distribution on the outbreak condition for the scenario with a linear transmission rate. Our theoretical analysis is in agreement with stochastic simulations, showing that the heterogeneity of link-weight distribution can have a significant effect on the epidemic dynamics. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:382 / 390
页数:9
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