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In a non-compact setting, the notion of hyperbolicity, and the associated structure of stable and unstable manifolds (for unbounded orbits), is highly dependent on the choice of metric used to define it. We consider the simplest version of…

Dynamical Systems · Mathematics 2015-05-20 Jorge Groisman , Zbigniew Nitecki

The aim of this paper is to demonstrate that very many Dehn fillings on a cusped hyperbolic 3-manifold yield a 3-manifold which is irreducible, atoroidal and not Seifert fibred, and which has infinite, word hyperbolic fundamental group. We…

Geometric Topology · Mathematics 2007-05-23 Marc Lackenby

We show that uniform lattices of isometries of products of real hyperbolic spaces act properly discontinuously and cocompactly on a median space. For lattices in products of at least two factors, this is the strongest degree of…

Geometric Topology · Mathematics 2025-11-06 Indira Chatterji , Cornelia Druţu

In this paper, we show that Gromov-Thurston's principle works for hyperbolic 3-manifolds of infinite volume and with finitely generated fundamental group. As an application, we have a new proof of Ending Lamination Theorem. Our proof…

Geometric Topology · Mathematics 2024-09-02 Teruhiko Soma

Let $S$ be an oriented closed surface of genus at least two, and let $M = S \times (0,1)$. Suppose that $h$ is a Riemannian metric on $S$ with curvature strictly greater than $-1$, $h^{*}$ is a Riemannian metric on $S$ with curvature…

Geometric Topology · Mathematics 2025-07-30 Abderrahim Mesbah

We investigate the combinatorial analogues, in the context of normal surfaces, of taut and transversely measured (codimension 1) foliations of 3-manifolds. We establish that the existence of certain combinatorial structures, a priori weaker…

Geometric Topology · Mathematics 2007-05-23 Danny Calegari

We consider hyperbolic links that admit alternating projections on surfaces in compact, irreducible 3-manifolds. We show that, under some mild hypotheses, the volume of the complement of such a link is bounded below in terms of a Kauffman…

Geometric Topology · Mathematics 2021-03-12 Brandon Bavier , Efstratia Kalfagianni

We give a formula with explicit constants relating the subsurface projection $d_Y(\nu^-,\nu^+)$ of the end invariants $\nu^-,\nu^+$ of a hyperbolic 3-manifold $Q$ diffeomorphic to $S\times\mathbb{R}$ and the length of the geodesic…

Geometric Topology · Mathematics 2025-04-09 Gabriele Viaggi

This paper gives an exposition of the authors' harmonic deformation theory for 3-dimensional hyperbolic cone-manifolds. We discuss topological applications to hyperbolic Dehn surgery as well as recent applications to Kleinian group theory.…

Geometric Topology · Mathematics 2007-05-23 Craig D. Hodgson , Steven P. Kerckhoff

We classify all the non-hyperbolic Dehn fillings of the complement of the chain-link with 3 components, conjectured to be the smallest hyperbolic 3-manifold with 3 cusps. We deduce the classification of all non-hyperbolic Dehn fillings of…

Geometric Topology · Mathematics 2011-03-16 Bruno Martelli , Carlo Petronio

In a recent paper Garoufalidis and Reid constructed pairs of 1-cusped hyperbolic 3-manifolds which are isospectral but not isometric. In this paper we extend this work to the multi-cusped setting by constructing isospectral but not…

Geometric Topology · Mathematics 2023-07-20 Benjamin Linowitz

We prove that every closed oriented 3-manifold admits a hyperbolic cone-manifold structure with cone-angle arbitrarily close to 2pi.

Geometric Topology · Mathematics 2014-11-11 Juan Souto

We consider an interesting class of combinatorial symmetries of polytopes which we call \emph{edge-length preserving combinatorial symmetries}. These symmetries not only preserve the combinatorial structure of a polytope but also map each…

Metric Geometry · Mathematics 2020-11-24 Egor Morozov

We describe a class of genus 2 closed hyperbolic 3-manifolds of arbitrarily large volume.

Geometric Topology · Mathematics 2007-05-23 Jennifer Schultens

In this paper we construct explicit examples of both closed and non-compact finite volume hyperbolic manifolds which provide counterexamples to the conjecture that the co-rank of a 3-manifold group (also known as the cut number) is bounded…

Geometric Topology · Mathematics 2014-10-01 Christopher J. Leininger , Alan W. Reid

We produce a large class of hyperbolic homology 3-spheres admitting arbitrarily many distinct tight contact structures. We also produce a sub-class admitting arbitrarily many distinct tight contact structures within the same homotopy class…

Geometric Topology · Mathematics 2024-05-29 Mahan Mj , Balarka Sen

We prove that the deformation space $AH(M)$ of marked hyperbolic 3-manifolds homotopy equivalent to a fixed compact 3-manifold $M$ with incompressible boundary is locally connected at quasiconformally rigid points.

Geometric Topology · Mathematics 2019-02-06 Jeffrey Brock , Kenneth Bromberg , Richard Canary , Cyril Lecuire , Yair Minsky

We construct a diffeomorphism of $\mathbb{T}^3$ admitting any finite or countable number of physical measures with intermingled basins. The examples are partially hyperbolic with splitting $T\mathbb{T}^3 = E^{cs} \oplus E^u$ and can be made…

Dynamical Systems · Mathematics 2017-02-06 Christian Bonatti , Rafael Potrie

We prove that for a certain class of closed monotone symplectic manifolds any Hamiltonian diffeomorphism with a hyperbolic fixed point must necessarily have infinitely many periodic orbits. Among the manifolds in this class are complex…

Symplectic Geometry · Mathematics 2015-01-14 Viktor L. Ginzburg , Basak Z. Gurel

We introduce a simple algorithm which transforms every four-dimensional cubulation into a cusped finite-volume hyperbolic four-manifold. Combinatorially distinct cubulations give rise to topologically distinct manifolds. Using this…

Geometric Topology · Mathematics 2013-10-24 Alexander Kolpakov , Bruno Martelli