Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/13706
Title: A new characterization of Goursat categories
Authors: Gran, Marino 
Rodelo, Diana 
Keywords: Goursat category; 3-by-3 Lemma; Pushouts; Mal'tsev condition
Issue Date: 2010
Publisher: Centro de Matemática da Universidade de Coimbra
Keywords: Goursat category; 3-by-3 Lemma; Pushouts; Mal'tsev condition
Issue Date: 2010
Publisher: Centro de Matemática da Universidade de Coimbra
Citation: Pré-Publicações DMUC. 10-10 (2010)
Abstract: We present a new characterisation of Goursat categories in terms of special kind of pushouts, that we call Goursat pushouts. This allows one to prove that, for a regular category, the Goursat property is actually equivalent to the validity of the denormalised 3-by-3 Lemma. Goursat pushouts are also useful to clarify, from a categorical perspective, the existence of the quaternary operations characterising 3-permutable varieties
URI: http://hdl.handle.net/10316/13706
Rights: openAccess
Appears in Collections:FCTUC Matemática - Vários

Files in This Item:
File Description SizeFormat
A new characterization of Goursat categories.pdf236.34 kBAdobe PDFView/Open
Show full item record

Page view(s) 50

241
checked on Aug 20, 2019

Download(s)

24
checked on Aug 20, 2019

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.