We show that the mapping torus of a hyperbolic group by a hyperbolic automorphism is cubulable. Alongthe way, we give an alternate proof of Hagen and Wise's theorem that hyperbolic free-by-cyclic groups arecubulable, and extend to the case with torsion Brinkmann's thesis that a torsion-free hyperbolic-by-cyclicgroup is hyperbolic if and only if it does not containZ2-subgroups.
机构:
Univ Cambridge, Dept Pure Math & Math Stat, 16 Mill Lane, Cambridge CB2 1SB, EnglandUniv Cambridge, Dept Pure Math & Math Stat, 16 Mill Lane, Cambridge CB2 1SB, England
Hagen, Mark F.
Wise, Daniel T.
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机构:
McGill Univ, Dept Math & Stat, Montreal, PQ, CanadaUniv Cambridge, Dept Pure Math & Math Stat, 16 Mill Lane, Cambridge CB2 1SB, England