@CAT Seminar

Speaker: Dorette Pronk

Title: A double category approach to ordered groupoids and left cancellative categories


Abstract:
Ordered groupoids and left cancellative categories are two categorical concepts that have been used to describe partial symmetry. In a 2004-paper on the semi group forum Lawson constructed functors going back and forth between the category of ordered groupoids and the category of left cancellative categories. In my talk I will show that ordered groupoids can be viewed as a particular kind of double categories and how this can be used to show that Lawson’s functors give rise to an equivalence of 2-categories. This is joint work with Darien DeWolf.

Category

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Time

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Location

#319 Colloquium Room, Chase Building