English

A note on the Hasse norm principle

Number Theory 2024-03-14 v2

Abstract

Let AA be a finite, abelian group. We show that the density of AA-extensions satisfying the Hasse norm principle exists, when the extensions are ordered by discriminant. This strengthens earlier work of Frei--Loughran--Newton \cite{FLN}, who obtained a density result under the additional assumption that A/A[]A/A[\ell] is cyclic with \ell denoting the smallest prime divisor of #A\# A.

Keywords

Cite

@article{arxiv.2301.10136,
  title  = {A note on the Hasse norm principle},
  author = {Peter Koymans and Nick Rome},
  journal= {arXiv preprint arXiv:2301.10136},
  year   = {2024}
}

Comments

8 pages. Final version, to appear Bull. Lon. Math. Soc

R2 v1 2026-06-28T08:18:50.679Z