The groupoid-cover correspondence revisited.

par Rahim Moosa (University of Waterloo)

jeudi 28 juin 2018, 10:30 → 11:30 Europe/Paris

Salle 112 Bât Braconnier

I will report on joint work with Levon Haykazyan elaborating on Hrushovski’s correspondence between internal covers and definable groupoids. We effect two improvements: a categorification that makes the correspondence into an equivalence, and an extension to the relative case of 1-analysable covers.