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dc.contributor.authorPastor Satorras, Romualdo
dc.contributor.authorVespignani, Alessandro
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2018-12-19T20:21:57Z
dc.date.available2018-12-19T20:21:57Z
dc.date.issued2002-03
dc.identifier.citationPastor-Satorras, R., Vespignani, A. Epidemic dynamics in finite size scale-free networks. "Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics", Març 2002, vol. 65, núm. 3, p. 035108-1-035108-4.
dc.identifier.issn1063-651X
dc.identifier.otherhttps://arxiv.org/abs/cond-mat/0202298
dc.identifier.urihttp://hdl.handle.net/2117/126055
dc.description.abstractMany real networks present a bounded scale-free behavior with a connectivity cutoff due to physical constraints or a finite network size. We study epidemic dynamics in bounded scale-free networks with soft and hard connectivity cutoffs. The finite size effects introduced by the cutoff induce an epidemic threshold that approaches zero at increasing sizes. The induced epidemic threshold is very small even at a relatively small cutoff, showing that the neglection of connectivity fluctuations in bounded scale-free networks leads to a strong overestimation of the epidemic threshold. We provide the expression for the infection prevalence and discuss its finite size corrections. The present paper shows that the highly heterogeneous nature of scale-free networks does not allow the use of homogeneous approximations even for systems of a relatively small number of nodes.
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshEpidemics
dc.subject.otherScale-free networks
dc.subject.otherEpidemic threshold
dc.titleEpidemic dynamics in finite size scale-free networks
dc.typeArticle
dc.subject.lemacEpidèmies
dc.contributor.groupUniversitat Politècnica de Catalunya. SC-SIMBIO - Sistemes complexos. Simulació discreta de materials i de sistemes biològics
dc.identifier.doi10.1103/PhysRevE.65.035108
dc.relation.publisherversionhttps://journals.aps.org/pre/abstract/10.1103/PhysRevE.65.035108
dc.rights.accessOpen Access
local.identifier.drac1230881
dc.description.versionPostprint (published version)
local.citation.authorPastor-Satorras, R.; Vespignani, A.
local.citation.publicationNamePhysical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
local.citation.volume65
local.citation.number3
local.citation.startingPage035108-1
local.citation.endingPage035108-4


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