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A note on the fixed subring of an FPF ring
Published online by Cambridge University Press: 17 April 2009
Abstract
An associative ring R with identity is called a left (right) FPF ring if given any finitely generated faithful left (right) R-module A and any left (right) R-module M then M is the epimorphic image of a direct sum of copies of A. Faith and Page have asked if the subring of elements fixed by a finite group of automorphisms of an FPF ring need also be FPF. Here we present examples showing the answer to be negative in general.
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- Copyright © Australian Mathematical Society 1989
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