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Absence of epidemic threshold in scale-free networks with degree correlations

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Boguña Espinal, Marian
Pastor Satorras, RomualdoMés informacióMés informacióMés informació
Vespignani, Alessandro
Document typeArticle
Defense date2003-01-15
PublisherAmerican Institute of Physics (AIP)
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
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 neighbor’s degree, enforced by the degree detailed balance condition.
CitationBoguña, M., Pastor-Satorras, R., Vespignani, A. Absence of epidemic threshold in scale-free networks with degree correlations. "Physical review letters", 15 Gener 2003, vol. 90, núm. 2, p. 028701-1-028701-4. 
URIhttp://hdl.handle.net/2117/126035
DOI10.1103/PhysRevLett.90.028701
ISSN0031-9007
Publisher versionhttps://journals.aps.org/prl/abstract/10.1103/PhysRevLett.90.028701
Other identifiershttps://arxiv.org/abs/cond-mat/0208163
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  • Departament de Física - Articles de revista [1.867]
  • SC-SIMBIO - Sistemes complexos. Simulació discreta de materials i de sistemes biològics - Articles de revista [102]
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