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Gushel--Mukai varieties: intermediate Jacobians
oleh: Olivier Debarre, Alexander Kuznetsov
Format: | Article |
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Diterbitkan: | Association Epiga 2020-12-01 |
Deskripsi
We describe intermediate Jacobians of Gushel-Mukai varieties $X$ of dimensions 3 or 5: if $A$ is the Lagrangian space associated with $X$, we prove that the intermediate Jacobian of $X$ is isomorphic to the Albanese variety of the canonical double covering of any of the two dual Eisenbud-Popescu-Walter surfaces associated with $A$. As an application, we describe the period maps for Gushel-Mukai threefolds and fivefolds.