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Displaying similar documents to “On the total mean curvature of a nonrigid surface.”

Different groups of circular units of a compositum of real quadratic fields

Radan Kučera (1994)

Acta Arithmetica

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There are many different definitions of the group of circular units of a real abelian field. The aim of this paper is to study their relations in the special case of a compositum k of real quadratic fields such that -1 is not a square in the genus field K of k in the narrow sense. The reason why fields of this type are considered is as follows. In such a field it is possible to define a group C of units (slightly bigger than Sinnott's group of circular units) such...