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On the units of a modular group ring
Published online by Cambridge University Press: 17 April 2009
Abstract
It is shown that a finite group G is a normal subgroup of the group of units of the group ring of G over the ring of integers modulo n if and only if G is abelian or n = 2 and G is isomorphic to the symmetric group on 3 letters.
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- Copyright © Australian Mathematical Society 1972
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