Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/19421
Tipo: | Artigo |
Título: | Multiple transitions of the susceptible-infected-susceptible epidemic model on complex networks |
Autor(es): | Mata, Angélica S. Ferreira, Silvio C. |
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. |
Palavras-chave: | Multiple transitions Susceptible-infected Susceptible epidemic Complex networks |
Editor: | Physical Review E |
Tipo de Acesso: | American Physical Society |
URI: | https://doi.org/10.1103/PhysRevE.91.012816 http://www.locus.ufv.br/handle/123456789/19421 |
Data do documento: | 22-Jan-2015 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo.pdf Until 2100-12-31 | Texto completo | 556,73 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.