Modeling and analysis of epidemic diffusion within small-world network. (English) Zbl 1251.91051

Liu, Ming; Xiao, Yihong

J. Appl. Math. 2012, Article ID 841531, 14 p. (2012).

Summary: To depict the rule of epidemic diffusion, two different models, the Susceptible-Exposure-Infected-Recovered-Susceptible (SEIRS) model and the Susceptible-Exposure-Infected-Quarantine-Recovered-Susceptible (SEIQRS) model, are proposed and analyzed within small-world networks. Firstly, the epidemic diffusion models are constructed with mean-filed theory, and condition for the occurrence of disease diffusion is explored. Then, the existence and global stability of the disease-free equilibrium and the endemic equilibrium for these two complex epidemic systems are proved by differential equations knowledge and Routh-Hurwiz theory. At last, a numerical example which includes key parameters analysis and critical topic discussion is presented to test how well the proposed two models may be applied in practice. These works may provide some guidelines for decision makers when coping with epidemic diffusion controlling problems.

MSC:

91D30	Social networks; opinion dynamics
92D30	Epidemiology
05C82	Small world graphs, complex networks (graph-theoretic aspects)

Keywords:

Susceptible-Exposure-Infected-Recovered-Susceptible (SEIRS) model; Susceptible-Exposure-Infected-Quarantine-Recovered-Susceptible (SEIQRS) model

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