Charles C. Edmunds

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The ways in which a nontrivial commutator can be a proper power in a free product of groups are identified. It is well known that in a free group, a nontrivial commutator cannot be a proper power. This seems to have been noted first by Schutzenberger [2]. It is, however, possible for a nontrivial commutator to be a proper power in a free product. Our aim in(More)
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