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arXiv · 2301.01961

Some more Fano threefolds with a multiplicative Chow-K\"unneth decomposition

Robert Laterveer
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Abstract

We exhibit several families of Fano threefolds with a multiplicative Chow-K\"unneth decomposition, in the sense of Shen-Vial. As a consequence, a certain tautological subring of the Chow ring of powers of these threefolds injects into cohomology. As a by-product of the argument, we observe that double covers of projective spaces admit a multiplicative Chow-K\"unneth decomposition.

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Robert Laterveer. 2023-01-05. Some more Fano threefolds with a multiplicative Chow-K\"unneth decomposition. https://arxiv.org/abs/2301.01961

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