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SUMMARY:Zhao Yu (Kavli IPMU)
DTSTART:20230322T070000Z
DTEND:20230322T083000Z
DTSTAMP:20260422T155159Z
UID:HKUST-AG/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/HKUST-AG/5/"
 >Hecke Correspondences on smooth surfaces and categorical commutators</a>\
 nby Zhao Yu (Kavli IPMU) as part of Algebra and Geometry Seminar @ HKUST\n
 \nLecture held in 2405.\n\nAbstract\nGiven a complex smooth surface\, Negu
 t constructed an action of the quantum toroidal algebra on the Grothendiec
 k group of moduli space of stable sheaves\, which generalized the construc
 tion of Nakajima\, Grojnowski\, Baranovsky in cohomology. In this talk\, w
 e will obtain a weak categorification of Negut's action\, by constructing 
 explicit natural transformations and compute the categorical commutators o
 f the positive and negative part.\n
LOCATION:https://researchseminars.org/talk/HKUST-AG/5/
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