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Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/12305

Title: Multiple phase transitions of the susceptible-infected-susceptible epidemic model on complex networks
???metadata.dc.creator???: Mata, Angélica S.
Ferreira, Silvio C.
Keywords: Multiple phase transitions
Populations and evolution
Publisher: American Physical Society
Issue Date: Jan-2015
Citation: MATA, A. S.; FERREIRA, S. C. Multiple phase transitions of the susceptible-infected-susceptible epidemic model on complex networks. Physical Review E, New York, v. 91, p. 1-10, Jan. 2015.
Abstract: The epidemic threshold of the susceptible-infected-susceptible (SIS) dynamics on random networks having a power law degree distribution with exponent γ > 3 has been investigated using different mean-field approaches, which predict different outcomes. We performed extensive simulations in the quasistationary state for a comparison with these mean-field theories. We observed concomitant multiple transitions in individual networks presenting large gaps in the degree distribution and the obtained multiple epidemic thresholds are well described by different mean-field theories. We observed that the transitions involving thresholds which vanish at the thermodynamic limit involve localized states, in which a vanishing fraction of the network effectively contributes to epidemic activity, whereas an endemic state, with a finite density of infected vertices, occurs at a finite threshold. The multiple transitions are related to the activations of distinct subdomains of the network, which are not directly connected.
URI: http://repositorio.ufla.br/jspui/handle/1/12305
???metadata.dc.language???: en_US
Appears in Collections:DFI - Artigos publicados em periódicos

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