Results 1 to 10 of about 3,724 (168)

Gromov hyperbolic cubic graphs

open access: greenOpen Mathematics, 2012
Abstract If X is a geodesic metric space and x 1; x 2; x 3 ∈ X, a geodesic triangle T = {x 1; x 2; x 3} is the union of the three geodesics [x 1 x
Pestana Domingo   +3 more
doaj   +3 more sources

Hyperbolic Unfoldings of Minimal Hypersurfaces

open access: yesAnalysis and Geometry in Metric Spaces, 2018
We study the intrinsic geometry of area minimizing hypersurfaces from a new point of view by relating this subject to quasiconformal geometry. Namely, for any such hypersurface H we define and construct a so-called S-structure.
Lohkamp Joachim
doaj   +2 more sources

Structural stability of meandering-hyperbolic group actions [PDF]

open access: yes, 2021
In his 1985 paper Sullivan sketched a proof of his structural stability theorem for group actions satisfying certain expansion-hyperbolicity axioms. In this paper we relax Sullivan's axioms and introduce a notion of meandering hyperbolicity for group ...
Kapovich, Michael   +2 more
core   +2 more sources

Uniform hyperbolicity of the curve graph via surgery sequences [PDF]

open access: yes, 2013
We prove that the curve graph $\calC^{(1)}(S)$ is Gromov-hyperbolic with a constant of hyperbolicity independent of the surface $S$. The proof is based on the proof of hyperbolicity of the free splitting complex by Handel and Mosher, as interpreted by ...
Clay, Matt, Rafi, Kasra, Schleimer, Saul
core   +2 more sources

A characterization of Gromov hyperbolicity of surfaces with variable negative curvature [PDF]

open access: yes, 2009
In this paper we show that, in order to check Gromov hyperbolicity of any surface with curvature K≤ −k² < 0, we just need to verify the Rips condition on a very small class of triangles, namely, those contained in simple closed geodesics. This result is,
Portilla, Ana, Tourís, Eva
core   +5 more sources

Strong hyperbolicity [PDF]

open access: yes, 2015
We propose the metric notion of strong hyperbolicity as a way of obtaining hyperbolicity with sharp additional properties. Specifically, strongly hyperbolic spaces are Gromov hyperbolic spaces that are metrically well-behaved at infinity, and, under weak
Nica, Bogdan, Spakula, Jan
core   +1 more source

The role of funnels and punctures in the Gromov hyperbolicity of Riemann surfaces [PDF]

open access: yes, 2006
27 pages, no figures.-- MSC2000 codes: 30F20, 30F45.MR#: MR2243795 (2007e:30063)Zbl#: Zbl 1108.30031We prove results on geodesic metric spaces which guarantee that some spaces are not hyperbolic in the Gromov sense.
Portilla, Ana   +2 more
core   +3 more sources

The hyperbolicity constant of infinite circulant graphs

open access: yesOpen Mathematics, 2017
If X is a geodesic metric space and x1, x2, x3 ∈ X, a geodesic triangle T = {x1, x2, x3} is the union of the three geodesics [x1x2], [x2x3] and [x3x1] in X.
Rodríguez José M., Sigarreta José M.
doaj   +1 more source

Mathematical Properties of the Hyperbolicity of Circulant Networks

open access: yesAdvances in Mathematical Physics, 2015
If X is a geodesic metric space and x1,x2,x3∈X, a geodesic triangle   T={x1,x2,x3} is the union of the three geodesics [x1x2], [x2x3], and [x3x1] in X.
Juan C. Hernández   +2 more
doaj   +1 more source

A Cartan-Hadamard type result for relatively hyperbolic groups [PDF]

open access: yes, 2013
In this article, we prove that if a finitely presented group has an asymptotic cone which is tree-graded with respect to a precise set of pieces then it is relatively hyperbolic. This answers a question of M.
Coulon, Rémi   +2 more
core   +1 more source

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