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The Group <G,t|e> When G is Torsion-Free

Clifford, Andrew; Goldstein, Richard Z. (Elsevier, 2001)

In this paper we discuss classes of nontrivial elements in the group with a relative presentation <G, t \e >, where G is torsion free and e is solvable over G.

Equations with Torsion-Free Coefficients

Clifford, Andrew; Goldstein, Richard Z. (Cambridge University Press, 2001)

In this paper we generalize techniques used by Klyachko and the authors to prove some tessellation results about S-2. These results are applied to prove the solvability of certain equations with torsion-free coefficients.