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CATEGORIES:Lecture, Colloquia, Seminar
DESCRIPTION:Speaker: Miguel Moreira (ETH)\n\nAbstract: Virasoro constrain
ts for Gromov-Witten invariants have a rich history tied to the very beginn
ing of the subject\, but recently there have been many developments on the
sheaf side. In this talk I will survey those developments and talk about jo
int work with A. Bojko and W. Lim where we propose a general conjecture of
Virasoro constraints for moduli spaces of sheaves and formulate it using th
e vertex algebra that D. Joyce recently introduced to study wall-crossing.
Using Joyce's framework we can show compatibility between wall-crossing and
the constraints\, which we then use to prove that they hold for moduli of
stable sheaves on curves and surfaces with h^0\,1=h^0\,2=0.
DTEND:20230323T220000Z
DTSTAMP:20230529T153922Z
DTSTART:20230323T203000Z
LOCATION:
SEQUENCE:0
SUMMARY:M-Seminar: Virasoro constraints in sheaf theory
UID:tag:localist.com\,2008:EventInstance_42610802004460
URL:https://events.k-state.edu/event/m-seminar_virasoro_constraints_in_shea
f_theory
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