The crossed coproduct theorem and Galois cohomology
type: Item
instance of: scholarly article
title: The crossed coproduct theorem and Galois cohomology
zbMATH Open document ID: 0873.16026
DOI: 10.1007/BF02937324
published in: Israel Journal of Mathematics
publication date: 1997-08-25T00:00:00Z
review text: A cohomological interpretation of the Brauer group of a coalgebra is given using the notion of Galois coextensions and Galois cohomology. A crossed coproduct structure theorem is proved, as well as a dual version of the classical splitting theorem.
reviewed by: Serban Raianu
Mathematics Subject Classification ID: 16W30
Mathematics Subject Classification ID: 16H05
Mathematics Subject Classification ID: 16S35
Mathematics Subject Classification ID: 16E40
zbMATH DE Number: 997607
zbMATH Keywords: Brauer groups
zbMATH Keywords: coalgebras
zbMATH Keywords: Galois coextensions
zbMATH Keywords: Galois cohomology
zbMATH Keywords: crossed coproducts
zbMATH Keywords: splitting theorems
author: Fred Van Oystaeyen
author: Yinhuo Zhang
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 997607