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Collective versus hub activation of epidemic phases on networks
dc.contributor.author | Ferreira, Silvio C. |
dc.contributor.author | Salvador, Renan |
dc.contributor.author | Pastor Satorras, Romualdo |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.date.accessioned | 2016-06-20T17:46:38Z |
dc.date.issued | 2016-03-14 |
dc.identifier.citation | Ferreira, S. C., Salvador, R., Pastor-Satorras, R. Collective versus hub activation of epidemic phases on networks. "PHYSICAL REVIEW E", 14 Març 2016, vol. 93, núm. 3, p. 1-10. |
dc.identifier.issn | 2470-0045 |
dc.identifier.uri | http://hdl.handle.net/2117/88179 |
dc.description.abstract | We consider a general criterion to discern the nature of the threshold in epidemic models on scale-free (SF) networks. Comparing the epidemic lifespan of the nodes with largest degrees with the infection time between them, we propose a general dual scenario, in which the epidemic transition is either ruled by a hub activation process, leading to a null threshold in the thermodynamic limit, or given by a collective activation process, corresponding to a standard phase transition with a finite threshold. We validate the proposed criterion applying it to different epidemic models, with waning immunity or heterogeneous infection rates in both synthetic and real SF networks. In particular, a waning immunity, irrespective of its strength, leads to collective activation with finite threshold in scale-free networks with large degree exponent, at odds with canonical theoretical approaches. |
dc.format.extent | 10 p. |
dc.language.iso | eng |
dc.publisher | AMER PHYSICAL SOC |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Random graphs |
dc.subject.lcsh | Complex networks and dynamic systems |
dc.subject.lcsh | Dynamics |
dc.subject.other | Scale-free networks |
dc.subject.other | Complex networks |
dc.subject.other | Random graphs |
dc.subject.other | Dynamics |
dc.title | Collective versus hub activation of epidemic phases on networks |
dc.type | Article |
dc.subject.lemac | Sistemes dinàmics aleatoris |
dc.subject.lemac | Dinàmica |
dc.contributor.group | Universitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity |
dc.identifier.doi | 10.1103/PhysRevE.93.032314 |
dc.relation.publisherversion | http://journals.aps.org/pre/abstract/10.1103/PhysRevE.93.032314 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 18301794 |
dc.description.version | Postprint (author's final draft) |
dc.date.lift | 10000-01-01 |
local.citation.author | Ferreira, S. C.; Salvador, R.; Pastor-Satorras, R. |
local.citation.publicationName | PHYSICAL REVIEW E |
local.citation.volume | 93 |
local.citation.number | 3 |
local.citation.startingPage | 1 |
local.citation.endingPage | 10 |
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