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SUMMARY:Yalong Cao/曹亚龙
DTSTART:20201229T081500Z
DTEND:20201229T090000Z
DTSTAMP:20260423T024028Z
UID:iccm2020/81
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/iccm2020/81/
 ">Gopakumar-Vafa type invariants for Calabi-Yau 4-folds</a>\nby Yalong Cao
 /曹亚龙 as part of ICCM 2020\n\n\nAbstract\nGopakumar-Vafa type invaria
 nts on Calabi-Yau 4-folds (which are non-trivial only for genus zero and o
 ne) are defined by Klemm-Pandharipande from Gromov-Witten theory\, and the
 ir integrality is conjectured. In this talk\, I will explain how to give a
  sheaf theoretical interpretation of them using counting invariants on mod
 uli spaces of one dimensional stable sheaves. Based on joint works with D.
  Maulik and Y. Toda.\n
LOCATION:https://researchseminars.org/talk/iccm2020/81/
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