English

The elliptic sieve and Brauer groups

Number Theory 2023-03-20 v3 Algebraic Geometry

Abstract

A theorem of Serre states that almost all plane conics over Q\mathbb{Q} have no rational point. We prove an analogue of this for families of conics parametrised by elliptic curves using elliptic divisibility sequences and a version of the Selberg sieve for elliptic curves. We also give more general results for specialisations of Brauer groups, which yields applications to norm form equations.

Keywords

Cite

@article{arxiv.2109.03746,
  title  = {The elliptic sieve and Brauer groups},
  author = {Subham Bhakta and Daniel Loughran and Simon L. Rydin Myerson and Masahiro Nakahara},
  journal= {arXiv preprint arXiv:2109.03746},
  year   = {2023}
}

Comments

32 pages

R2 v1 2026-06-24T05:47:44.248Z