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arXiv · 1912.05363

Prelog Chow groups of self-products of degenerations of cubic threefolds

Christian Böhning·Hans-Christian Graf von Bothmer·Michel van Garrel
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Abstract

It is unknown whether smooth cubic threefolds have an (integral Chow-theoretic) decomposition of the diagonal, or whether they are stably rational or not in general. As a first step towards making progress on these questions, we compute the (saturated numerical) prelog Chow group of the self-product of a certain degeneration of cubic threefolds.

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Christian Böhning, Hans-Christian Graf von Bothmer, Michel van Garrel. 2019-12-11. Prelog Chow groups of self-products of degenerations of cubic threefolds. https://arxiv.org/abs/1912.05363

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