Some motivic properties of Gushel–Mukai sixfolds

Michele Bolognesi and Robert Laterveer

Mathematische Nachrichten, 2024, vol. 297, issue 1, 246-265

Abstract: Gushel–Mukai (GM) sixfolds are an important class of so‐called Fano‐K3 varieties. In this paper, we show that they admit a multiplicative Chow–Künneth decomposition modulo algebraic equivalence and that they have the Franchetta property. As side results, we show that double Eisenbud‐Popescu‐Walter (EPW) sextics and cubes have the Franchetta property, modulo algebraic equivalence, and some vanishing results for the Chow ring of GM sixfolds.

Date: 2024
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https://doi.org/10.1002/mana.202200200

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