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University of Cambridge > Talks.cam > Category Theory Seminar > Universal central extensions in peri-abelian categories

## Universal central extensions in peri-abelian categoriesAdd to your list(s) Download to your calendar using vCal - Tim Van der Linden, Université catholique de Louvain, Belgium
- Tuesday 05 February 2013, 14:15-15:00
- MR5, Centre for Mathematical Sciences.
If you have a question about this talk, please contact Julia Goedecke. (joint work with James Gray) We clarify the relation between Bourn’s notion of peri-abelian category on the one hand and coincidence of the Smith, Huq and Higgins commutators on the other. Next, peri-abelian categories are shown to form a good context for the general theory of universal central extensions: all peri-abelian categories satisfy the condition (UCE) considered in joint work with Casas; and via a result of Cigoli, all categories of interest in Orzech’s sense are examples. This talk is part of the Category Theory Seminar series. ## This talk is included in these lists:- All CMS events
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