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Different behaviors of epidemic spreading in scale-free networks with identical degree sequence. (English) Zbl 1183.92069

Summary: Recently, the study of dynamical behaviors of susceptible-infected (SI) disease models in complex networks, especially in A. L. Barabási and R. Albert (BA) scale-free networks [Rev. Mod. Phys. 74, 47ff (2002)], has attracted much attention. Although some interesting phenomena have been observed, the formative reasons for those particular dynamical behaviors are still not well understood, despite the speculation that topological properties (for example the degree distribution) have a strong impact on epidemic spreading. We study the evolution behaviors of epidemic spreading on a class of scale-free networks sharing identical degree sequence, and observe significantly different evolution behaviors in the whole family of networks. We show that the power-law degree distribution does not suffice to characterize the dynamical behaviors of disease diffusion on scale-free networks.

MSC:

92D30 Epidemiology
94C99 Circuits, networks
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