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Inverse-closed additive subgroups of fields

Authors
  • Mattarei, Sandro
Type
Published Article
Publication Date
Nov 22, 2005
Submission Date
Nov 22, 2005
Identifiers
arXiv ID: math/0511538
Source
arXiv
License
Unknown
External links

Abstract

We describe the additive subgroups of fields which are closed with respect to taking inverses. In particular, in characteristic different from two any such subgroup is either a subfield or the kernel of the trace map of a quadratic subextension of the field.

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