Hasse principle violation for algebraic families of del Pezzo surfaces of degree 4 and hyperelliptic curves of genus congruent to 1 modulo 4

Fuente: arXiv
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Autori principali: Huang, Kai, Liang, Yongqi
Natura: Preprint
Pubblicazione: 2023
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author Huang, Kai
Liang, Yongqi
author_facet Huang, Kai
Liang, Yongqi
contents Let g be a positive integer congruent to 1 modulo 4 and K be an arbitrary number field. We construct infinitely many explicit one-parameter algebraic families of degree 4 del Pezzo surfaces and of genus g hyperelliptic curves such that each K-member of the families violates the Hasse principle. In particular, we obtain algebraic families of non-trivial 2-torsion elements in the Tate-Shafarevich group of elliptic curves over K. These Hasse principle violations are explained by the Brauer-Manin obstruction.
format Preprint
id arxiv_https___arxiv_org_abs_2312_11204
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Hasse principle violation for algebraic families of del Pezzo surfaces of degree 4 and hyperelliptic curves of genus congruent to 1 modulo 4
Huang, Kai
Liang, Yongqi
Number Theory
Algebraic Geometry
Let g be a positive integer congruent to 1 modulo 4 and K be an arbitrary number field. We construct infinitely many explicit one-parameter algebraic families of degree 4 del Pezzo surfaces and of genus g hyperelliptic curves such that each K-member of the families violates the Hasse principle. In particular, we obtain algebraic families of non-trivial 2-torsion elements in the Tate-Shafarevich group of elliptic curves over K. These Hasse principle violations are explained by the Brauer-Manin obstruction.
title Hasse principle violation for algebraic families of del Pezzo surfaces of degree 4 and hyperelliptic curves of genus congruent to 1 modulo 4
topic Number Theory
Algebraic Geometry
url https://arxiv.org/abs/2312.11204