共 50 条
Torsion of elliptic curves in the compositum of Dihedral fields
被引:1
|作者:
Chou, Michael
[1
]
Karker, Mary Leah
[1
]
机构:
[1] Providence Coll, Math & Comp Sci, 1 Cunningham Sq, Providence, RI 02918 USA
关键词:
Elliptic curve;
rational points;
dihedral fields;
POINTS;
EXTENSIONS;
SUBGROUPS;
D O I:
10.1142/S1793042123500185
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
Let E/Q be an elliptic curve. Let Q(G) denote the compositum of all fields with Galois group G over Q. We classify the possible torsion subgroups of E over Q(Dn) for n not divisible by 3 or 4, where D-n is the dihedral group on a regular n-gon. We also obtain upper bounds for the torsion of E over Q(G) for various semi-direct products G = F-q(zeta(p)) (sic) Z/pZ by way of classifications of torsion over Q(Z/pqZ).
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页码:389 / 408
页数:20
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