Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/43878
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dc.contributor.authorGran, Marino-
dc.contributor.authorRodelo, Diana-
dc.date.accessioned2017-10-12T13:31:37Z-
dc.date.available2017-10-12T13:31:37Z-
dc.date.issued2014-
dc.identifier.urihttp://hdl.handle.net/10316/43878-
dc.description.abstractWe extend some properties of pullbacks which are known to hold in a Mal'tsev context to the more general context of Gumm categories. The varieties of universal algebras which are Gumm categories are precisely the congruence modular ones. These properties lead to a simple alternative proof of the known property that central extensions and normal extensions coincide for any Galois structure associated with a Birkhoff subcategory of an exact Goursat category.por
dc.language.isoengpor
dc.publisherDMUC - Textos de Matemáticapor
dc.relationinfo:eu-repo/grantAgreement/FCT/COMPETE/132981/PTpor
dc.rightsopenAccesspor
dc.titleSome Remarks on Pullbacks in Gumm Categoriespor
dc.typebookPartpor
degois.publication.firstPage125por
degois.publication.lastPage136por
degois.publication.titleCategorical Methods in Algebra and Topology: Special Volume in Honour of Manuela Sobralpor
dc.relation.publisherversionwww.mat.uc.pt/~textos/v46/por
dc.peerreviewedyespor
degois.publication.volume46por
item.languageiso639-1en-
item.fulltextCom Texto completo-
item.grantfulltextopen-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.researchunitCMUC - Centre for Mathematics of the University of Coimbra-
crisitem.author.orcid0000-0002-9859-5238-
crisitem.author.orcid0000-0002-4816-3234-
Appears in Collections:I&D CMUC - Livros e Capítulos de Livros
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