BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Joel Kamnitzer (McGill)
DTSTART:20230427T185000Z
DTEND:20230427T195000Z
DTSTAMP:20260423T005851Z
UID:GPRTatNU/78
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GPRTatNU/78/
 ">Virtual cactus group: combinatorics and topology</a>\nby Joel Kamnitzer 
 (McGill) as part of Geometry\, Physics\, and Representation Theory Seminar
 \n\n\nAbstract\nThe cactus group is a finitely presented group analogous t
 o the braid group. It acts on combinatorial objects\, especially tensor pr
 oducts of crystals. It is also the fundamental group of the moduli space o
 f marked real genus 0 stable curves. The virtual cactus group contains bot
 h the cactus group and the symmetric group with some natural relations (he
 re "virtual" is in the sense of virtual knot theory). I will explain how t
 he virtual cactus group appears combinatorially and topologically.\n
LOCATION:https://researchseminars.org/talk/GPRTatNU/78/
END:VEVENT
END:VCALENDAR