[Extensions galoisiennes de groupe en caractéristique 3]
For K a field of characteristic 3 we give explicitly the whole family of Galois extensions of K with Galois group and determine the discriminant of such an extension. In the case when K is the field of fractions of a formal power series ring in 3 variables, this result is interesting in the context of Abhyankar's Normal Crossings Local Conjecture.
Pour K un corps de caractéristique 3 nous donnons explicitement la famille complète d'extensions de K à groupe de Galois et déterminons le discriminant d'une telle extension. Dans le cas où K est le corps de fractions d'un anneau de séries de puissances formelles en 3 variables, ce résultat est intéressant dans le contexte de la Conjecture Locale de Croisements Normaux d'Abhyankar.
Accepté le :
Publié le :
Crespo, Teresa 1 ; Hajto, Zbigniew 2
@article{CRMATH_2008__346_11-12_611_0,
author = {Crespo, Teresa and Hajto, Zbigniew},
title = {Extensions with {Galois} group $ {2}^{+}{S}_{4}\ast {D}_{8}$ in characteristic 3},
journal = {Comptes Rendus. Math\'ematique},
pages = {611--614},
year = {2008},
publisher = {Elsevier},
volume = {346},
number = {11-12},
doi = {10.1016/j.crma.2008.04.010},
language = {en},
url = {https://www.numdam.org/articles/10.1016/j.crma.2008.04.010/}
}
TY - JOUR
AU - Crespo, Teresa
AU - Hajto, Zbigniew
TI - Extensions with Galois group $ {2}^{+}{S}_{4}\ast {D}_{8}$ in characteristic 3
JO - Comptes Rendus. Mathématique
PY - 2008
SP - 611
EP - 614
VL - 346
IS - 11-12
PB - Elsevier
UR - https://www.numdam.org/articles/10.1016/j.crma.2008.04.010/
DO - 10.1016/j.crma.2008.04.010
LA - en
ID - CRMATH_2008__346_11-12_611_0
ER -
%0 Journal Article
%A Crespo, Teresa
%A Hajto, Zbigniew
%T Extensions with Galois group $ {2}^{+}{S}_{4}\ast {D}_{8}$ in characteristic 3
%J Comptes Rendus. Mathématique
%D 2008
%P 611-614
%V 346
%N 11-12
%I Elsevier
%U https://www.numdam.org/articles/10.1016/j.crma.2008.04.010/
%R 10.1016/j.crma.2008.04.010
%G en
%F CRMATH_2008__346_11-12_611_0
Crespo, Teresa; Hajto, Zbigniew. Extensions with Galois group $ {2}^{+}{S}_{4}\ast {D}_{8}$ in characteristic 3. Comptes Rendus. Mathématique, Tome 346 (2008) no. 11-12, pp. 611-614. doi: 10.1016/j.crma.2008.04.010
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