In 1995, Rips and Sela asked if torsionfree hyperbolic groups admit globally stable cylinders. We establish this property for all residually finite hyperbolic groups and curve …
We show that an arithmetic lattice $\Gamma $ in a semi-simple Lie group $ G $ contains a torsion-free subgroup of index $\delta (v) $ where $ v=\mu (G/\Gamma) $ is the co-volume of …
We show that if $ H $ is a non-elementary hyperbolic commensurated subgroup of infinite index in a hyperbolic group $ G $, then $ H $ is virtually a free product of hyperbolic surface …
N Lazarovich, E Stark - arXiv preprint arXiv:2310.03644, 2023 - arxiv.org
We prove that an infinite-ended group whose one-ended factors have finite-index subgroups and are in a family of groups with a nonzero multiplicative invariant is not quasi-isometrically …
Marked Length Spectrum and Arithmeticity Marked Length Spectrum and Arithmeticity Abstract This dissertation considers the marked length spectrum of negatively curved closed …