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UID:20251105T052805EST-6081k6PdOr@132.216.98.100
DTSTAMP:20251105T102805Z
DESCRIPTION:Title: On the word problem for Artin-Tits groups and Shi arrang
 ements in Coxeter groups.\n\nIn this talk\, I will survey the notion of Ga
 rside families in relation with the word problem for Artin-Tits groups. In
  particular\, Dehornoy\, Dyer and I proved that there exist a finite Garsi
 de family in any Artin-Tits group G. Then I will discuss how this family i
 s (surprisingly) related to a well-known finite hyperplane sub-arrangement
 \, the Shi arrangement\, of the reflection arrangement of the Coxeter grou
 p associated to G.\n
DTSTART:20180404T190000Z
DTEND:20180404T200000Z
LOCATION:Room 920\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:Christophe Hohlweg (Université du Québec à Montréal)
URL:/mathstat/channels/event/christophe-hohlweg-univer
 site-du-quebec-montreal-286326
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