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Bibliographic Details
Main Author: König, Joachim
Format: Preprint
Published: 2021
Subjects:
Online Access:https://arxiv.org/abs/2109.09646
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Table of Contents:
  • We provide an infinite family of quadratic number fields with everywhere unramified Galois extensions of Galois group $SL_2(7)$. To my knowledge, this is the first instance of infinitely many such realizations for a perfect group which is not generated by involutions, a property which makes it difficult to approach for the problem in question and leads to somewhat delicate local-global problems in inverse Galois theory.