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On the units of a modular group ring II
Published online by Cambridge University Press: 17 April 2009
Abstract
Let R be a ring of nonzero characteristic and let G be a finite group with subgroup H. It is shown that H is a normal subgroup of the group of units of the group ring RG if and only if H is contained in the centre of G or R is the field with 2 elements, G is the symmetric group on 3 letters and H is normal in G.
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- Copyright © Australian Mathematical Society 1973
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