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arXiv:2110.03793 [math.AG]AbstractReferencesReviewsResources

Weak approximation for certain quadric surface bundles

Nick Rome

Published 2021-10-07, updated 2022-08-18Version 2

We investigate weak approximation for a class of biquadratic fourfolds inside $\mathbb{P}^3 \times \mathbb{P}^2$, some of which appear in the recent work of Hassett--Pirutka--Tschinkel.

Comments: 15 pages. Comments very welcome. Newest version substantially revised: the full Brauer group is now explicitly computed
Categories: math.AG, math.NT
Subjects: 14G12, 14F22, 11R44
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