𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On unramified Galois extensions constructed using Galois representations

✍ Scribed by Hiroyuki Hasebe


Book ID
105924377
Publisher
Springer
Year
2002
Tongue
English
Weight
94 KB
Volume
109
Category
Article
ISSN
0025-2611

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Deformations of locally abelian Galois r
✍ Sachiko Ohtani πŸ“‚ Article πŸ“… 2006 πŸ› Elsevier Science 🌐 English βš– 180 KB

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.

Galois 2-extensions unramified outside 2
✍ John Jossey πŸ“‚ Article πŸ“… 2007 πŸ› Elsevier Science 🌐 English βš– 187 KB

We classify quadratic, biquadratic and degree 4 cyclic 2-rational number fields. We also classify those quadratic number fields which are not 2-rational, but have a degree 2 extension, which is Galois over Q and is 2-rational. In this case we explicitly describe the Galois group of their maximal pro

Galois Module Structure of Jacobians in
✍ Martha Rzedowski-CalderΓ³n; Gabriel Villa-Salvador πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 102 KB

For a finite unramified Galois -extension of function fields over an algebraically closed field of characteristic different from , we find the Galois module structure of the elements of the Jacobian whose orders are powers of .

The Nonexistence of Certain Galois Exten
✍ Sharon Brueggeman πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 97 KB

## Communicated by J. Tate Let \ be a two-dimensional semisimple odd representation of Gal(Q Γ‚Q) over a finite field of characteristic 5 which is unramified outside 5. Assuming the GRH, we show in accordance with a conjecture by Serre that \=/ a 5 Γ„ / b 5 , where a+b is odd.