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SUMMARY:Alex Weekes (University of Saskatchewan)
DTSTART:20210827T000000Z
DTEND:20210827T020000Z
DTSTAMP:20260423T035608Z
UID:WiSe/20
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WiSe/20/">Wh
 at is the Affine Grassmanian?</a>\nby Alex Weekes (University of Saskatche
 wan) as part of What is ...? Seminar\n\n\nAbstract\nAffine Grassmannians a
 re infinite-dimensional spaces which play an important role in geometric r
 epresentation theory.  One part of the richness of these spaces is that th
 ey can defined in several seemingly distinct ways: via loop groups\, via a
  moduli space of principal bundles\, via Kac-Moody groups\, or via lattice
 s.  In this talk we'll overview the definition of the affine Grassmannian\
 , with some motivation from number theory\, and discuss a few examples whi
 ch relate back to (possibly) more familiar spaces like the nilpotent cone.
   Finally\, if time permits\, we'll touch on more advanced topics such as 
 the geometric Satake equivalence.\n
LOCATION:https://researchseminars.org/talk/WiSe/20/
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