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SUMMARY:Matthew Spong (The University of Queensland)
DTSTART:20210910T010000Z
DTEND:20210910T030000Z
DTSTAMP:20260423T035414Z
UID:WiSe/21
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WiSe/21/">Wh
 at is equivariant elliptic cohomology?</a>\nby Matthew Spong (The Universi
 ty of Queensland) as part of What is ...? Seminar\n\n\nAbstract\nElliptic 
 cohomology was introduced in the late 1980s following Witten's results abo
 ut the index theory of families of differential operators on free loop spa
 ces. In a certain sense it is an approximation to the K-theory of the free
  loop space. The first equivariant version of the theory was constructed i
 n 1994 by Grojnowski\, who made comments about its mysterious relationship
  to the representation theory of loop groups. In this talk\, we outline a 
 construction of equivariant elliptic cohomology whose main ingredient is t
 he loop group equivariant K-theory of the free loop space. The constructio
 n is based on a recent construction of Kitchloo.\n
LOCATION:https://researchseminars.org/talk/WiSe/21/
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