Galois module structure of elementary abelian extensions
Galois module structure of elementary abelian extensions
复制标题
初等阿贝尔扩张的伽罗瓦模结构
DOI:
10.1016/0021-8693(83)90176-x
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发表时间:
1983
影响因子:
0.9
通讯作者:
Leon R. McCulloh
中科院分区:
文献类型:
--
作者:
Leon R. McCulloh
Let K be an algebraic number field, ο= O K its ring of integers, and G an elementary abelian group of order l k. In this article, we determine which classes in the locally free class group Cl (οG) of the group ring οG are realizable as Galois module classes of rings of integers O L in tame Galois extensions L K with Gal (L K)≅ G. The set R (οG) of such realizable classes is described in terms of the action on Cl (οG) of a Stickelberger ideal J in the integral group ring Z C, where C (≅ F x lk) is a (Cartan) subgroup of the automorphism group Aut G (≅ GL k (F l)).