Equivalence of K3 surfaces from Verra threefolds

Published 19 Dec 2017 in math.AG | (1712.06958v2)

Abstract: We study (2,2) divisors in $P² \times P^2$ giving rise to pairs of non-isomorphic, derived equivalent and L-equivalent K3 surfaces of degree 2. In particular, we confirm the existence of such fourfolds as predicted by Kuznetsov and Shinder in \cite{KS}.

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