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The Beauville-Voisin conjecture for Hilb(K3) and the Virasoro algebra

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Speaker: 
Andrei Negut
Zugehörigkeit: 
MIT
Datum: 
Don, 04/07/2019 - 10:30 - 12:00
Location: 
MPIM Lecture Hall

We give a geometric representation theory proof of a mild version of the Beauville-Voisin Conjecture for Hilbert schemes of K3 surfaces, namely the injectivity of the cycle map restricted to the subring of Chow generated by tautological classes. Our approach involves lifting formulas of Lehn and Li-Qin-Wang from cohomology to Chow groups, and using them to solve the problem by invoking the irreducibility criteria of Virasoro algebra modules, due to Feigin-Fuchs. Joint work with Davesh Maulik.

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