Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/43878
Title: Some Remarks on Pullbacks in Gumm Categories
Authors: Gran, Marino 
Rodelo, Diana 
Issue Date: 2014
Publisher: DMUC - Textos de Matemática
Project: info:eu-repo/grantAgreement/FCT/COMPETE/132981/PT 
Serial title, monograph or event: Categorical Methods in Algebra and Topology: Special Volume in Honour of Manuela Sobral
Volume: 46
Abstract: We 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.
URI: http://hdl.handle.net/10316/43878
Rights: openAccess
Appears in Collections:I&D CMUC - Livros e Capítulos de Livros

Files in This Item:
File Description SizeFormat
Pullbacks_Gumm_Cats_Revised.pdf252.91 kBAdobe PDFView/Open
Show full item record

SCOPUSTM   
Citations

15
checked on Feb 18, 2020

WEB OF SCIENCETM
Citations 5

15
checked on Jan 2, 2022

Page view(s)

197
checked on Dec 24, 2021

Download(s) 5

4,522
checked on Dec 24, 2021

Google ScholarTM

Check


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