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DTSTART:20210328T030000
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DTSTAMP:20260404T145801Z
UID:1618488000@ist.ac.at
DTSTART:20210415T140000
DTEND:20210415T160000
DESCRIPTION:Speaker: Richárd Rimányi\nhosted by Tamas Hausel\nAbstract: T
 he role played by Schubert classes in the geometry of Grassmannians is pla
 yed by the so-called stable envelopes in the geometry of Nakajima quiver v
 arieties. Stable envelopes come in three flavors: cohomological\, K theore
 tic\, and elliptic stable envelopes. We will show examples\, and explore t
 heir appearances in enumerative geometry and representation theory. In the
  second part of the talk we will discuss 3d mirror symmetry for characteri
 stic classes’’\, namely\, the fact that for certain pairs of seemingly
  unrelated spaces the elliptic stable envelopes match’ in some concrete 
 (but non-obvious) sense. We will meet Cherkis bow varieties\, a pool of sp
 aces (conjecturally) closed under 3d mirror symmetry for characteristic cl
 asses’’. The combinatorics necessary to play Schubert calculus on bow 
 varieties includes binary contingency tables\, tie diagrams\, and the Hana
 ny-Witten transition.
LOCATION:https://mathseminars.org/seminar/AGNTISTA\, ISTA
ORGANIZER:birgit.oosthuizen-noczil@ist.ac.at
SUMMARY:Richárd Rimányi: Stable envelopes\, 3d mirror symmetry\, bow vari
 eties
URL:https://talks-calendar.ista.ac.at/events/3095
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