English

Mixed degree number field computations

Number Theory 2016-11-11 v2

Abstract

We present a method for computing complete lists of number fields in cases where the Galois group, as an abstract group, appears as a Galois group in smaller degree. We apply this method to find the twenty-five octic fields with Galois group PSL2(7)\textrm{PSL}_2(7) and smallest absolute discriminant. We carry out a number of related computations, including determining the octic field with Galois group 23:GL3(2)2^3{:}\textrm{GL}_3(2) of smallest absolute discriminant.

Keywords

Cite

@article{arxiv.1602.09119,
  title  = {Mixed degree number field computations},
  author = {John W. Jones and David P. Roberts},
  journal= {arXiv preprint arXiv:1602.09119},
  year   = {2016}
}
R2 v1 2026-06-22T13:00:14.742Z