𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Deformations of locally abelian Galois representations and unramified extensions

✍ Scribed by Sachiko Ohtani


Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
180 KB
Volume
120
Category
Article
ISSN
0022-314X

No coin nor oath required. For personal study only.

✦ Synopsis


We study the deformation theory of Galois representations whose restriction to every decomposition subgroup is abelian. As an application, we construct unramified non-solvable extensions over the field obtained by adjoining all p-power roots of unity to the field of rational numbers.


📜 SIMILAR VOLUMES


On Galois structure of the integers in e
✍ Yoshimasa Miyata 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 212 KB

Let p be an odd prime number and k a finite extension of Q p . Let K/k be a totally ramified elementary abelian Kummer extension of degree p 2 with Galois group G. We determine the isomorphism class of the ring of integers in K as an oG-module under some assumptions. The obtained results imply there

On the Automorphism Group of a Free Pro-
✍ Hiroshi Tsunogai 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 431 KB

## Abstract In § l of this article, we study group‐theoretical properties of some automorphism group Ψ^\*^ of the meta‐abelian quotient § of a free pro‐__l__ group § of rank two, and show that the conjugacy class of some element of order two of Ψ^\*^ is not determined by the action induced on the a