Multiplicative Subgroups of Finite Index in a Ring

Vitaly Bergelson, Daniel B. Shapiro

Type: Article

Publication Date: 1992-12-01

Citations: 5

DOI: https://doi.org/10.2307/2159464

Abstract

If G is a subgroup of finite index in the multiplicative group of an infinite field K then G -G = K .Similar results hold for various rings.

Locations

Proceedings of the American Mathematical Society - View - PDF

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+	Invariant means on topological groups and their applications	1969	Frederick Greenleaf
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