Rings containing a field of characteristic zero

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Let K be a field of characteristic zero, and let R be a ring containing K. Then either R×=K× or K× is a subgroup of infinite index in R×.
Original languageEnglish
Pages (from-to)413-414
Number of pages2
JournalArchiv der Mathematik
Issue number5
Early online date16 Sept 2017
Publication statusPublished - Nov 2017

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