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arxiv: 0902.3599 · v2 · submitted 2009-02-20 · 🧮 math.GR · math.LO

One Variable Equations in Torsion-Free Hyperbolic Groups

classification 🧮 math.GR math.LO
keywords gammaequationshyperbolictorsion-freevariablecentralizerscosetsfinite
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Let $\Gamma$ be a torsion-free hyperbolic group. We show that the set of solutions of any system of equations with one variable in $\Gamma$ is a finite union of points and cosets of centralizers if and only if any two-generator subgroup of $\Gamma$ is free.

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