Kleinian groups and the rank problem

@article{Kapovich2005KleinianGA,
  title={Kleinian groups and the rank problem},
  author={Ilya Kapovich and Richard Weidmann},
  journal={Geometry \& Topology},
  year={2005},
  volume={9},
  pages={375-402}
}
We prove that the rank problem is decidable in the class of torsion-free wordhyperbolic Kleinian groups. We also show that every group in this class has only finitely many Nielsen equivalence classes of generating sets of a given cardinality. 
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