Title:
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Nature of the Epidemic Threshold for the Susceptible-Infected-Susceptible Dynamics in Networks
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Author:
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Boguñá, Marián; Castellano, Claudio; Pastor-Satorras, R. (Romualdo), 1967-
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Other authors:
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Universitat de Barcelona |
Abstract:
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We develop an analytical approach to the susceptible-infected-susceptible epidemic model that allows us to unravel the true origin of the absence of an epidemic threshold in heterogeneous networks. We find that a delicate balance between the number of high degree nodes in the network and the topological distance between them dictates the existence or absence of such a threshold. In particular, small-world random networks with a degree distribution decaying slower than an exponential have a vanishing epidemic threshold in the thermodynamic limit. |
Subject(s):
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-Epidemiologia -Internet -Xarxes socials -Xarxes neuronals (Neurobiologia) -Percolació (Física estadística) -Termodinàmica -Sistemes no lineals -Epidemiology -Internet -Social networks -Neural networks (Neurobiology) -Percolation (Statistical physics) -Thermodynamics -Nonlinear systems |
Rights:
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(c) American Physical Society, 2013
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Document type:
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Article Article - Published version |
Published by:
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American Physical Society
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