Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/11209
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Rodelo, Diana | - |
dc.contributor.author | Linden, Tim Van der | - |
dc.date.accessioned | 2009-08-27T10:21:46Z | - |
dc.date.available | 2009-08-27T10:21:46Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | Pré-Publicações DMUC. 08-55 (2008) | en_US |
dc.identifier.uri | https://hdl.handle.net/10316/11209 | - |
dc.description.abstract | We 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.sponsorship | FCT/Centro de Matemática da Universidade de Coimbra; Vrije Universiteit Brussel | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Centro de Matemática da Universidade de Coimbra | en_US |
dc.rights | openAccess | eng |
dc.subject | Cohomology | en_US |
dc.subject | Categorical Galois theory | en_US |
dc.subject | Semi-abelian category | en_US |
dc.subject | Higher central extension | en_US |
dc.subject | Baer sum | en_US |
dc.title | The third cohomology group classifies double central extensions | en_US |
dc.type | preprint | en_US |
item.openairetype | preprint | - |
item.languageiso639-1 | en | - |
item.openairecristype | http://purl.org/coar/resource_type/c_816b | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | Com Texto completo | - |
crisitem.author.researchunit | CMUC - Centre for Mathematics of the University of Coimbra | - |
crisitem.author.orcid | 0000-0002-4816-3234 | - |
Appears in Collections: | FCTUC Matemática - Vários |
Files in This Item:
File | Description | Size | Format | |
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The third cohomology group classifies double central extensions.pdf | 276.81 kB | Adobe PDF | View/Open |
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