Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/13251
Title: Absence of epidemic threshold in scale free networks with degree correlations
Author: Boguñá, Marián
Pastor-Satorras, R. (Romualdo), 1967-
Vespignani, Alessandro, 1965-
Keywords: Mecànica estadística
Física estadística
Statistical mechanics
Statistical physics
Issue Date: 2003
Publisher: American Physical Society
Abstract: Random scale-free networks have the peculiar property of being prone to the spreading of infections. Here we provide for the susceptible-infected-susceptible model an exact result showing that a scale-free degree distribution with diverging second moment is a sufficient condition to have null epidemic threshold in unstructured networks with either assortative or disassortative mixing. Degree correlations result therefore irrelevant for the epidemic spreading picture in these scale-free networks. The present result is related to the divergence of the average nearest neighbors degree, enforced by the degree detailed balance condition.
Note: Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.90.028701
It is part of: Physical Review Letters, 2003, vol. 90, núm. 2, p. 028701-1-028701-4
URI: http://hdl.handle.net/2445/13251
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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