A non-solvable Galois extension of Q ramified at 2 only

被引:6
作者
Dembele, Lassina [1 ]
机构
[1] Inst Expt Math, D-45141 Essen, Germany
关键词
DISCRIMINANT BOUNDS; REPRESENTATIONS; TOWERS;
D O I
10.1016/j.crma.2008.12.004
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this Note, we show the existence of a non-solvable Galois extension of Q which is unramified outside 2. The extension K we construct has degree 2251 731 094 732 800 = 2(19)(3.5.17.257)(2), it has root discriminant delta(K) < 2(47/8) = 58.68..., and is totally complex. To cite this article: L Dembele, C. R. Acad. Sci. Paris, Ser. I 347 (2009). (C) 2008 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
引用
收藏
页码:111 / 116
页数:6
相关论文
共 23 条
[1]   The Magma algebra system .1. The user language [J].
Bosma, W ;
Cannon, J ;
Playoust, C .
JOURNAL OF SYMBOLIC COMPUTATION, 1997, 24 (3-4) :235-265
[2]   On the modularity of elliptic curves over Q: Wild 3-adic exercises [J].
Breuil, C ;
Conrad, B ;
Diamond, F ;
Taylor, R .
JOURNAL OF THE AMERICAN MATHEMATICAL SOCIETY, 2001, 14 (04) :843-939
[3]   The nonexistence of certain galois extensions unramified outside 5 [J].
Brueggeman, S .
JOURNAL OF NUMBER THEORY, 1999, 75 (01) :47-52
[4]  
CARAYOL H, 1986, ANN SCI ECOLE NORM S, V19, P409
[5]  
DIAZ FDY, 1980, PUBLICATIONS MATH OR, V80
[6]   Algebraic modular forms [J].
Gross, BH .
ISRAEL JOURNAL OF MATHEMATICS, 1999, 113 (1) :61-93
[7]  
Gross BH, 1998, INT MATH RES NOTICES, V125FR, P865
[8]   Tamely ramified towers and discriminant bounds for number fields - II [J].
Hajir, F ;
Maire, C .
JOURNAL OF SYMBOLIC COMPUTATION, 2002, 33 (04) :415-423
[9]   Tamely ramified towers and discriminant bounds for number fields [J].
Hajir, F ;
Maire, C .
COMPOSITIO MATHEMATICA, 2001, 128 (01) :35-53
[10]  
Jarvis F, 1997, J REINE ANGEW MATH, V491, P199