Cooperative scale-free networks despite the presence of detector hubs

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Show simple item record Poncela, Julia Gómez-Gardeñes, Jesús Floría, Luis M. Moreno, Yamir Sánchez, Angel 2012-07-27T09:08:38Z 2012-07-27T09:08:38Z 2009-11
dc.identifier.bibliographicCitation Europhysics Letters, vol. 88, n. 3, nov. 2009. Pp. 1-6
dc.identifier.issn 0295-5075 (print version)
dc.identifier.issn 1286-4854 (online version)
dc.description.abstract Recent results have shown that heterogeneous populations are better suited to support cooperation than homogeneous settings when the Prisoner’s Dilemma drives the evolutionary dynamics of the system. The same occurs when the network growth is coevolving together with the evolutionary dynamics, which also gives rise to highly cooperative scale-free networks. In the latter case, however, the organization of cooperation is radically different with respect to the case in which the underlying network is static. In this paper we study the structure of cooperation in static networks grown together with evolutionary dynamics and show that the general belief that hubs can only be occupied by cooperators does not hold. Moreover, these scale-free networks support high levels of cooperation despite having defector hubs. Our results have several important implications for the explanation of cooperative behavior in scale-free networks and highlight the importance that the formation of complex systems have on its function.
dc.description.sponsorship YM is supported by MICINN (Spain) through the Ram´on y Cajal Programme. This work has been partially supported by MICINN through Grants FIS2006-12781- C02-01, FIS2008-01240 and MOSAICO, and by Comunidad de Madrid (Spain) through Grant SIMUMAT-CM.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher IOPscience
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.title Cooperative scale-free networks despite the presence of detector hubs
dc.type article
dc.description.status Publicado
dc.subject.eciencia Matemáticas
dc.identifier.doi 10.1209/0295-5075/88/38003
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
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