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arXiv · 1908.06667

Irrationality and monodromy for cubic threefolds

Ivan Smith
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Abstract

We show the cohomological monodromy for the universal family of smooth cubic threefolds does not factor through the genus five mapping class group. This gives a geometric group theory perspective on the well-known irrationality of cubic threefolds.

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Ivan Smith. 2019-08-19. Irrationality and monodromy for cubic threefolds. https://arxiv.org/abs/1908.06667

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