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SUMMARY:Jørgen Vold Rennemo (University of Oslo)
DTSTART:20210518T110000Z
DTEND:20210518T120000Z
DTSTAMP:20260423T021358Z
UID:ZAG/121
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/ZAG/121/">K-
 theoretic sheaf counting invariants on C^4</a>\nby Jørgen Vold Rennemo (U
 niversity of Oslo) as part of ZAG (Zoom Algebraic Geometry) seminar\n\n\nA
 bstract\nOh and Thomas have recently defined a K-theoretic sheaf counting 
 invariant for moduli spaces of sheaves on a Calabi-Yau 4-fold. One of the 
 simplest examples of such a moduli scheme is the Hilbert scheme of n point
 s on C^4. The topic of this talk is a proof of a formula for the generatin
 g functions of invariants of these Hilbert schemes\, confirming a conjectu
 re of Nekrasov (as well a generalisation to Quot schemes of C^4\, conjectu
 red by Nekrasov and Piazzalunga). This is joint work with Martijn Kool.\n
LOCATION:https://researchseminars.org/talk/ZAG/121/
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