Let p be a fixed odd prime number and k an imaginary abelian field containing a primitive p th root `p of unity. Let k Γk be the cyclotomic Z p -extension and LΓk the maximal unramified pro-p abelian extension. We put where E is the group of units of k . Let X=Gal(LΓk ) and Y=Gal(L & NΓk ), and let
On Number Fields with an Unramified Abelian Extension of Degree 2n+2
β Scribed by Y.Z. Lan
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 315 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0022-314X
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β¦ Synopsis
Assume that (K) is either a totally real or a totally imaginary number field. Let (F) be the maximal unramified elementary abelian 2-extension of (K) and ([F: K]=2^{n}). The purpose of this paper is to describe a family of cubic cyclic extension of (K). We have constructed an unramified abelian extension of degree (2^{n+2}) for each member (L) of the family. 1993 Academic Press, Inc.
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