Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/11209
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dc.contributor.authorRodelo, Diana-
dc.contributor.authorLinden, Tim Van der-
dc.date.accessioned2009-08-27T10:21:46Z-
dc.date.available2009-08-27T10:21:46Z-
dc.date.issued2008-
dc.identifier.citationPré-Publicações DMUC. 08-55 (2008)en_US
dc.identifier.urihttps://hdl.handle.net/10316/11209-
dc.description.abstractWe characterise the double central extensions in a semi-abelian category in terms of commutator conditions. We prove that the third cohomology group H3(Z;A) of an object Z with coe cients in an abelian object A classi es the double central extensions of Z by A.en_US
dc.description.sponsorshipFCT/Centro de Matemática da Universidade de Coimbra; Vrije Universiteit Brusselen_US
dc.language.isoengen_US
dc.publisherCentro de Matemática da Universidade de Coimbraen_US
dc.rightsopenAccesseng
dc.subjectCohomologyen_US
dc.subjectCategorical Galois theoryen_US
dc.subjectSemi-abelian categoryen_US
dc.subjectHigher central extensionen_US
dc.subjectBaer sumen_US
dc.titleThe third cohomology group classifies double central extensionsen_US
dc.typepreprinten_US
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_816b-
item.fulltextCom Texto completo-
item.openairetypepreprint-
item.cerifentitytypePublications-
item.languageiso639-1en-
crisitem.author.researchunitCMUC - Centre for Mathematics of the University of Coimbra-
crisitem.author.orcid0000-0002-4816-3234-
Appears in Collections:FCTUC Matemática - Vários
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