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math.GR1993★ 1 cited
Products of Commutators and Products of Squares in a Free Group
Leo P. Comerford, Charles C. Edmunds
A classification of the ways in which an element of a free group can be expressed as a product of commutators or as a product of squares is given. This is then applied to some part…
math.GR1993
Commutators as Powers in Free Products of Groups
Leo P. Comerford, Charles C. Edmunds, Gerhard Rosenberger
The ways in which a nontrivial commutator can be a proper power in a free product of groups are identified.