English

A Refinement of Pohst's Inequality

Number Theory 2025-09-23 v2 Combinatorics

Abstract

We generalize an inequality conjectured by Pohst in 1977 and recently proved by the author and independently by Battistoni and Molteni. This new inequality improves a bound for the regulator in terms of the discriminant for totally real number fields by taking into account the signs of conjugates of the fundamental unit. We give a new interpretation to the problem and exploit the combinatorial method used by Pohst.

Keywords

Cite

@article{arxiv.2212.01500,
  title  = {A Refinement of Pohst's Inequality},
  author = {Gabriel Raposo},
  journal= {arXiv preprint arXiv:2212.01500},
  year   = {2025}
}

Comments

21 pages, 15 figures

R2 v1 2026-06-28T07:21:00.591Z