Unramified extensions of some cyclic quartic fields

In this paper we determine the fourteen unramified extensions for some cyclic quartic fields $K$ whose $2$-class group $C_{K,2}$ is isomorphic to ${\mathbb{Z}}/{2{\mathbb{Z}}}\times {\mathbb{Z}}/{2{\mathbb{Z}}} \times {\mathbb{Z}}/{2{\mathbb{Z}}}$  and to characterize the generators of $C_{K,2}$.

Bibliographic Details
Main Authors: Mohammed Talbi, Abdelmalek Azizi, Idriss Jerrari
Format: Article
Language:English
Published: Sociedade Brasileira de Matemática 2018-01-01
Series:Boletim da Sociedade Paranaense de Matemática
Subjects:
Online Access:http://periodicos.uem.br/ojs/index.php/BSocParanMat/article/view/31299