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SUMMARY:Pieter Belmans (University of Luxembourg\, Luxembourg)
DTSTART:20240424T120000Z
DTEND:20240424T130000Z
DTSTAMP:20260423T005809Z
UID:LAGOON/93
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/LAGOON/93/">
 Hochschild cohomology of Hilbert schemes of points</a>\nby Pieter Belmans 
 (University of Luxembourg\, Luxembourg) as part of Longitudinal Algebra an
 d Geometry Open ONline Seminar (LAGOON)\n\n\nAbstract\nI will present a fo
 rmula describing the Hochschild cohomology of symmetric quotient stacks\, 
 computing the Hochschild–Kostant–Rosenberg decomposition of this orbif
 old. Through the Bridgeland–King–Reid–Haiman equivalence this allows
  the computation of Hochschild cohomology of Hilbert schemes of points on 
 surfaces. These computations explain how this invariant behaves differentl
 y from say Betti or Hodge numbers\, which have been studied intensively in
  the past 30 years\, and it allows for new deformation-theoretic results. 
 This is joint work with Lie Fu and Andreas Krug.\n\nThe Zoom link is\n \nh
 ttps://uni-koeln.zoom.us/j/91875528987?pwd=US8wdjNrWjl5dXNQSVRzREhoRE1PUT0
 9\n\nMeeting ID: 918 7552 8987\nPassword: LAGOON\n
LOCATION:https://researchseminars.org/talk/LAGOON/93/
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