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SUMMARY:Noah White (Australian National University)
DTSTART:20201105T195000Z
DTEND:20201105T205000Z
DTSTAMP:20260423T005850Z
UID:GPRTatNU/10
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GPRTatNU/10/
 ">Cactus group actions and cell modules</a>\nby Noah White (Australian Nat
 ional University) as part of Geometry\, Physics\, and Representation Theor
 y Seminar\n\n\nAbstract\nThe cactus group associated to a Coxeter group ca
 n be thought of as an asymptotic version of the braid group. It has been o
 bserved by many authors that interesting cactus group actions can be const
 ructed in many situations when one has a representation of the braid group
 . In this talk I will explain what the cactus group is\, and what is meant
  by "asymptotic". I will also explain how to construct cactus group action
 s associated to cell modules of the Hecke algebra\, a description of this 
 action using Lusztig’s isomorphism between the Hecke algebra and group a
 lgebra and point to some interesting questions along the way. Much of this
  talk is work joint with Raphael Rouquier.\n
LOCATION:https://researchseminars.org/talk/GPRTatNU/10/
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