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Twisted Group Rings Whose Units Form an FC-Group
Published online by Cambridge University Press: 20 November 2018
Abstract
Let U(KλG) be the group of units of the infinite twisted group algebra KλG over a field K. We describe the FC-centre ΔU of U(KλG) and give a characterization of the groups G and fields K for which U(KλG) = ΔU. In the case of group algebras we obtain the Cliff-Sehgal-Zassenhaus theorem.
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- Copyright © Canadian Mathematical Society 1995
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