BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4//
BEGIN:VEVENT
UID:20260510T192148EDT-88956dXB1t@132.216.98.100
DTSTAMP:20260510T232148Z
DESCRIPTION:Descriptive Dynamics and Combinatorics Seminar\n\n \n\nTitle: c
 ircle squaring\n\nAbstract: We show that a closed disk and square with the
  same area are equidecomposible with  pieces. A simple argument implies th
 at the pieces are also . Indeed the argument takes advantage of closure pr
 operties of the class of sets that are both  and . More generally\, we sho
 w that if  and  have the same positive Lebesgue measure and small boundary
 \, then they are equidecomposible with pieces that are countable unions of
  finite Boolean combinations of translates of \,  and open sets. This is j
 oint work with Narmada Varadarajan and Felix Weilacher.\n\nZoom meeting ht
 tps://mcgill.zoom.us/j/87587975637\n
DTSTART:20260407T153000Z
DTEND:20260407T163000Z
LOCATION:Room 920\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:Spencer Unger (University of Toronto)
URL:/mathstat/channels/event/spencer-unger-university-
 toronto-372289
END:VEVENT
END:VCALENDAR