Products of Commutators and Products of Squares in a Free Group
arXiv:math/9310206
Abstract
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 particular classes of elements. Finally, a question about expressing a commutator as a product of squares is addressed.
arXiv commentAMS-LaTex, 11 pages, no figures