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DTSTART:20240331T030000
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BEGIN:VEVENT
DTSTAMP:20260406T020830Z
UID:648ae47508072675168704@ist.ac.at
DTSTART:20240620T130000
DTEND:20240620T143000
DESCRIPTION:Speaker: Jacinta Perez Gavilan Torres\nhosted by Tamas Hausel\n
 Abstract: Kostka-Foulkes polynomials are q-analogues of weight multiplicit
 ies for irreducible representations of semi-simple finite-dimensional comp
 lex Lie algebras. They appear in various contexts in representation theory
 \; in particular they are affine Kazdhan-Lusztig polynomials and therefore
  have positive coefficients. In type A\, that is\, for the special linear 
 Lie algebra\, a positive combinatorial formula has been known since 1978. 
 However\, in general\, the problem is still wide open. I will give a histo
 rical introduction to the problem of finding a positive combinatorial form
 ula for Kostka-Foulkes polynomials beyond type A. Then I will present some
  joint results with Leonardo Patimo in this direction - in particular such
  a formula for type B2/C2.
LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101
 )\, ISTA
ORGANIZER:boosthui@ist.ac.at
SUMMARY:Jacinta Perez Gavilan Torres: Atoms and charge beyond type A
URL:https://talks-calendar.ista.ac.at/events/4983
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