|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Some remarks on 2-star-permutability and descent in regular categories.
If you have a question about this talk, please contact Julia Goedecke.
The context of regular multi-pointed categories  provides a convenient framework to investigate and compare some crucial exactness properties arising in pointed and in non-pointed categorical algebra. In this talk the basic ideas of this approach will be recalled, and a couple of recent results will be explained more in detail. The first one is a characterisation of 2-star-permutable categories, which are a common extension of regular Mal’tsev and of regular subtractive categories (joint work with Diana Rodelo). The second one concerns the effective descent morphisms in a regular multi-pointed category (joint work with Olivette Ngaha).
 M. Gran, Z. Janelidze and A. Ursini, A good theory of ideals in regular multi-pointed categories, J. Pure Appl. Algebra 216, 2012, 1905-1919.
This talk is part of the Category Theory Seminar series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsFinance - Centre for Financial Research Open Knowledge Meetups Centre for Animal Welfare & Anthrozoology Seminars
Other talksFestival of Ideas: The Gathering Sound Michaelmas Term Lecture The Construction of Authority in Early Russian Crime Fiction Mod-Phi Convergence: precise asymptotics and local limit theorems for dependent random variables: II Which Real Numbers are Pleasant? Decision processes and decision deficits: Insights from response time data