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Nature of the epidemic threshold for the susceptible-infected-susceptible dynamics in networks

Boguñá, Marian ; Castellano, Claudio ; Pastor-Satorras, Romualdo

Physical review letters, 2013-08, Vol.111 (6), p.068701-068701, Article 068701 [Periódico revisado por pares]

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Título:
Nature of the epidemic threshold for the susceptible-infected-susceptible dynamics in networks
Autor: Boguñá, Marian ; Castellano, Claudio ; Pastor-Satorras, Romualdo
Assuntos: Disease Susceptibility ; Epidemic Threshold ; Epidemics ; Epidemiologic Methods ; Física ; Física estadística ; Infection - epidemiology ; Models, Theoretical ; Statistical physics ; susceptible-infected-susceptible epidemic model ; Termodinàmica ; Thermodynamics ; Àrees temàtiques de la UPC
É parte de: Physical review letters, 2013-08, Vol.111 (6), p.068701-068701, Article 068701
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: 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.
Editor: United States
Idioma: Inglês

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