BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250823T124408EDT-5404sG6S4i@132.216.98.100 DTSTAMP:20250823T164408Z DESCRIPTION:Title: Mapping class groups\, coverings\, braids and groupoids. \n\nAbstract: Given a finite-sheeted\, possibly branched covering space be tween surfaces\, it’s natural to ask how the mapping class group of the co vering surface relates to the mapping class group of the base surface. In this talk\, we will take a journey through this question for surfaces with boundary. It will feature appearances from the fundamental groupoid\, the Birman-Hilden theorem\, the Burau representation and new embeddings of th e braid group in mapping class groups.\n DTSTART:20211117T200000Z DTEND:20211117T210000Z LOCATION:Room 920\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke Ouest SUMMARY:Tyrone Ghaswala URL:/mathstat/channels/event/tyrone-ghaswala-334992 END:VEVENT END:VCALENDAR