BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20260710T053130EDT-6803CRevv0@132.216.98.100 DTSTAMP:20260710T093130Z DESCRIPTION:Title: The Hrushovski property for hypertournaments and profini te topologies \n\nAbstract: During the talk I will discuss a problem conce rning extensions of partial isomorphisms of finite tournaments and its equ ivalent form\, which is a problem about the pro-odd topology on the free g roup. The pro-odd topology is the refinement of the pro-finite topology wh ere we take only the normal subgroups of odd index as the neighborhood bas is of 1. The problem concerns a characterization of those finitely generat ed subgroups of the free group which are closed in the pro-odd topology. I will discuss a positive answer for cyclic subgroups and a negative answer for a generalized version of this question. Joint work with J. Huang\, M. Pawliuk and D. Wise.\n  \n DTSTART:20181024T190000Z DTEND:20181024T200000Z LOCATION:Room 1104\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke Ouest SUMMARY:Marcin Sabok (³ÉÈËVRÊÓÆµ) URL:/mathstat/channels/event/marcin-sabok-mcgill-unive rsity-290906 END:VEVENT END:VCALENDAR