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TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20190331T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
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DTSTART:20181028T020000
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BEGIN:VEVENT
DTSTAMP:20260406T041152Z
UID:5c2cb7b298aad525593101@ist.ac.at
DTSTART:20190123T140000
DTEND:20190123T170000
DESCRIPTION:Speaker: Joel Kamnitzer\nhosted by Tamas Hausel\nAbstract: Give
 n a representation of a reductive group\, Braverman-Finkelberg-Nakajima ha
 ve defined a remarkable Poisson variety called the Coulomb branch.  Their 
 construction of this space was motivated by considerations from supersymme
 tric gauge theories and symplectic duality.  The coordinate ring of this C
 oulomb branch is defined as a kind of cohomological Hall algebra\; thus it
  makes sense to develop a type of "Springer theory" to define modules over
  this algebra.  In this talk\, we will explain this BFN Springer theory an
 d give many examples.  In the toric case\, we will see a beautiful combina
 torics of polytopes.  In the quiver case\, we will see connections to the 
 representations of quivers over power series rings.And in general\, we wil
 l explore the relations between this Springer theory and quasimap spaces.
LOCATION:Big Seminar room Ground floor / Office Bldg West (I21.EG.101)\, IS
 TA
ORGANIZER:sdanzing@ist.ac.at
SUMMARY:Joel Kamnitzer: BFN Springer theory
URL:https://talks-calendar.ista.ac.at/events/1763
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