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SUMMARY:Soheyla Feyzbakhsh (Imperial)
DTSTART:20201130T141500Z
DTEND:20201130T151500Z
DTSTAMP:20260423T005738Z
UID:OxGeom/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/OxGeom/6/">A
 pplication of a Bogomolov-Gieseker type inequality to counting invariants<
 /a>\nby Soheyla Feyzbakhsh (Imperial) as part of Oxford Geometry and Analy
 sis Seminar\n\n\nAbstract\nIn this talk\, I will work on a smooth projecti
 ve threefold X which satisfies the Bogomolov-Gieseker conjecture of Bayer-
 Macrì-Toda\, such as the projective space P^3 or the quintic threefold. I
  will show certain moduli spaces of 2-dimensional torsion sheaves on X are
  smooth bundles over Hilbert schemes of ideal sheaves of curves and points
  in X. When X is Calabi-Yau this gives a simple wall crossing formula expr
 essing curve counts (and so ultimately Gromov-Witten invariants) in terms 
 of counts of D4-D2-D0 branes. This is joint work with Richard Thomas.\n
LOCATION:https://researchseminars.org/talk/OxGeom/6/
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