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SUMMARY:Mahir Can (Tulane University)
DTSTART:20200929T000000Z
DTEND:20200929T010000Z
DTSTAMP:20260423T035630Z
UID:OISTRTS/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/OISTRTS/2/">
 Spherical Varieties and Combinatorics</a>\nby Mahir Can (Tulane University
 ) as part of OIST representation theory seminar\n\n\nAbstract\nLet G be a 
 reductive complex algebraic group with a Borel subgroup B. A spherical G-v
 ariety is an irreducible normal G-variety X where B has an open orbit. If 
 X is affine\, or if it is projective but endowed with a G-linearized ample
  line bundle\, then the group action criteria for the sphericality is in f
 act equivalent to the representation theoretic statement that a certain sp
 ace of functions (related to X) is multiplicity-free as a G-module. In thi
 s talk\, we will discuss the following question about a class of spherical
  varieties: if X is a Schubert variety for G\, then when do we know that X
  is a spherical L-variety\, where L is the stabilizer of X in G.\n
LOCATION:https://researchseminars.org/talk/OISTRTS/2/
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