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Main Authors: Chan, Stephanie, Koymans, Peter, Rome, Nick
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2504.21792
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author Chan, Stephanie
Koymans, Peter
Rome, Nick
author_facet Chan, Stephanie
Koymans, Peter
Rome, Nick
contents We prove the refined Loughran--Smeets conjecture of Loughran--Rome--Sofos for a wide class of varieties arising as products of conic bundles. One interesting feature of our varieties is that the subordinate Brauer group may be arbitrarily large. As an application of our methods, we answer a question of Lenstra by giving an asymptotic for the triples of integers $(a, b, c)$ for which the Rédei symbol $[a, b, c]$ takes a given value. We also make significant progress on a question of Serre on the zero loci of systems of quaternion algebras defined over $\mathbb{Q}(t_1, \dots, t_n)$.
format Preprint
id arxiv_https___arxiv_org_abs_2504_21792
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Serre's problem for multiple conics
Chan, Stephanie
Koymans, Peter
Rome, Nick
Number Theory
We prove the refined Loughran--Smeets conjecture of Loughran--Rome--Sofos for a wide class of varieties arising as products of conic bundles. One interesting feature of our varieties is that the subordinate Brauer group may be arbitrarily large. As an application of our methods, we answer a question of Lenstra by giving an asymptotic for the triples of integers $(a, b, c)$ for which the Rédei symbol $[a, b, c]$ takes a given value. We also make significant progress on a question of Serre on the zero loci of systems of quaternion algebras defined over $\mathbb{Q}(t_1, \dots, t_n)$.
title Serre's problem for multiple conics
topic Number Theory
url https://arxiv.org/abs/2504.21792