Results 51 to 60 of about 415 (151)

Relative cubulation of relative strict hyperbolization

open access: yesJournal of the London Mathematical Society, Volume 111, Issue 4, April 2025.
Abstract We prove that many relatively hyperbolic groups obtained by relative strict hyperbolization admit a cocompact action on a CAT(0)$\operatorname{CAT}(0)$ cubical complex. Under suitable assumptions on the peripheral subgroups, these groups are residually finite and even virtually special.
Jean‐François Lafont, Lorenzo Ruffoni
wiley   +1 more source

Neck‐pinching of CP1$\mathbb {C}{\rm P}^1$‐structures in the PSL2C${\rm PSL}_2\mathbb {C}$‐character variety

open access: yesJournal of Topology, Volume 18, Issue 1, March 2025.
Abstract We characterize a certain neck‐pinching degeneration of (marked) CP1$\mathbb {C}{\rm P}^1$‐structures on a closed oriented surface S$S$ of genus at least two. In a more general setting, we take a path of CP1$\mathbb {C}{\rm P}^1$‐structures Ct(t⩾0)$C_t \nobreakspace (t \geqslant 0)$ on S$S$ that leaves every compact subset in its deformation ...
Shinpei Baba
wiley   +1 more source

Gromov hyperbolicity in the free quasiworld. I [PDF]

open access: green, 2022
Qingshan Zhou, Saminathan Ponnusamy
openalex   +1 more source

Coboundary expansion and Gromov hyperbolicity

open access: yesGroups, Geometry, and Dynamics
We prove that if a compact n -manifold admits a sequence of residual covers that form a coboundary expander in dimension  n-2 , then the manifold has Gromov ...
Dawid Kielak, Piotr W. Nowak
openaire   +2 more sources

Gromov hyperbolic groups and the Macaev norm [PDF]

open access: yesPacific Journal of Mathematics, 2006
Let \(\Gamma\) be a Gromov hyperbolic group with a finite set \(A\) of generators. One can consider three quantities: the Coornaert-Papadopoulos topological entropy \(h_{top}(\Sigma(\infty))\) of the subshift associated to \((\Gamma,A)\), Voiculescu's invariant \(k^-_\infty(\lambda_A)\), and the growth entropy \(\text{gr}(\Gamma,A)\). The author proves
openaire   +2 more sources

Null Distance and Convergence of Lorentzian Length Spaces. [PDF]

open access: yesAnn Henri Poincare, 2022
Kunzinger M, Steinbauer R.
europepmc   +1 more source

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