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This is the third in a series of papers constructing hyperbolic structures on all Haken three-manifolds. This portion deals with the mixed case of the deformation space for manifolds with incompressible boundary that are not acylindrical,…

Geometric Topology · Mathematics 2007-05-23 William P. Thurston

Thurston's hyperbolization theorem for Haken manifolds and normal surface theory yield an algorithm to determine whether or not a compact orientable 3-manifold with nonempty boundary consisting of tori admits a complete finite-volume…

Geometric Topology · Mathematics 2019-02-01 Robert C. Haraway

For a hyperbolic link K in the thickened torus with no bigons, we show that there is a decomposition of the complement of a link L, obtained from augmenting K, into torihedra. We further decompose the torihedra into angled pyramids and…

Geometric Topology · Mathematics 2022-11-01 Alice Kwon , Ying Hong Tham

This paper is the first in a series of two articles whose aim is to extend a recent result of Guillarmou-Lefeuvre on the local rigidity of the marked length spectrum from the case of compact negatively-curved Riemannian manifolds to the…

Differential Geometry · Mathematics 2020-11-30 Yannick Guedes Bonthonneau , Thibault Lefeuvre

Let O be a three-dimensional Nil-orbifold, with branching locus a knot Sigma transverse to the Seifert fibration. We prove that O is the limit of hyperbolic cone manifolds with cone angle in (pi-epsilon, pi). We also study the space of Dehn…

Geometric Topology · Mathematics 2014-11-11 Joan Porti

General Relativity in 4 dimensions can be equivalently described as a dynamical theory of SO(3)-connections rather than metrics. We introduce the notion of asymptotically hyperbolic connections, and work out an analog of the…

General Relativity and Quantum Cosmology · Physics 2017-03-24 Joel Fine , Yannick Herfray , Kirill Krasnov , Carlos Scarinci

We generalise work of Young-Eun Choi to the setting of ideal triangulations with vertex links of arbitrary genus, showing that the set of all (possibly incomplete) hyperbolic cone-manifold structures realised by positively oriented…

Geometric Topology · Mathematics 2016-05-16 Alex Casella , Feng Luo , Stephan Tillmann

We give effective bilipschitz bounds on the change in metric between thick parts of a cusped hyperbolic 3-manifold and its long Dehn fillings. In the thin parts of the manifold, we give effective bounds on the change in complex length of a…

Geometric Topology · Mathematics 2022-08-29 David Futer , Jessica S. Purcell , Saul Schleimer

It is known that a knot complement can be decomposed into ideal octahedra along a knot diagram. A solution to the gluing equations applied to this decomposition gives a pseudo-developing map of the knot complement, which will be called a…

Geometric Topology · Mathematics 2018-11-19 Hyuk Kim , Seonhwa Kim , Seokbeom Yoon

We consider 3-dimensional hyperbolic cone-manifolds, singular along infinite lines, which are ``convex co-compact'' in a natural sense. We prove an infinitesimal rigidity statement when the angle around the singular lines is less than…

Differential Geometry · Mathematics 2014-02-12 Sergiu Moroianu , Jean-Marc Schlenker

We investigate the terms arising in an identity for hyperbolic surfaces proved by Luo and Tan, namely showing that they vary monotonically in terms of lengths and that they verify certain convexity properties. Using these properties, we…

Geometric Topology · Mathematics 2020-02-10 Nhat Minh Doan , Hugo Parlier , Ser Peow Tan

In this paper we study the geometry of fully augmented link complements in the thickened torus and describe their geometric properties, generalizing the study of fully augmented links in $S^3$. We classify which fully augmented links in the…

Geometric Topology · Mathematics 2025-07-02 Alice Kwon

This paper concerns with deformations of noncompact complex hyperbolic manifolds (with locally Bergman metric), varieties of discrete representations of their fundamental groups into $PU(n,1)$ and the problem of (quasiconformal) stability…

Differential Geometry · Mathematics 2009-09-25 Boris Apanasov

We study the symplectic geometry of the moduli space of closed n-gons with fixed side-lengths in hyperbolic 3-space. We prove that these moduli spaces have a symplectic structure coming from Poisson Lie theory. We construct completely…

Symplectic Geometry · Mathematics 2007-05-23 Michael Kapovich , John J. Millson , Thomas Treloar

Hyperbolic geometry is developed in a purely algebraic fashion from first principles, without a prior development of differential geometry. The natural connection with the geometry of Lorentz, Einstein and Minkowski comes from a projective…

Metric Geometry · Mathematics 2009-09-09 N. J. Wildberger

We provide two constructions of hyperbolic metrics on 3-manifolds with Heegaard splittings that satisfy certain topological conditions, which both apply to random Heegaard splittings with asymptotic probability 1. These constructions…

Geometric Topology · Mathematics 2025-07-16 Peter Feller , Alessandro Sisto , Gabriele Viaggi

Previous work of the authors with Bus Jaco determined a lower bound on the complexity of cusped hyperbolic 3-manifolds and showed that it is attained by the monodromy ideal triangulations of once-punctured torus bundles. This paper exhibits…

Geometric Topology · Mathematics 2021-12-06 J. Hyam Rubinstein , Jonathan Spreer , Stephan Tillmann

We formulate the Asymptotic Length-Saturation Conjecture on the length sets of closed geodesics on hyperbolic manifolds whose fundamental groups are subarithmetic, that is, contained in an arithmetic group. We prove the first instance of…

Number Theory · Mathematics 2022-01-27 Alex Kontorovich , Xin Zhang

We consider the relationship between hyperbolic cone-manifold structures on surfaces, and algebraic representations of the fundamental group into a group of isometries. A hyperbolic cone-manifold structure on a surface, with all interior…

Geometric Topology · Mathematics 2010-06-29 Daniel V. Mathews

Many geometric structures associated to surface groups can be encoded in terms of invariant cross ratios on their circle at infinity; examples include points of Teichm\"uller space, Hitchin representations and geodesic currents. We add to…

Geometric Topology · Mathematics 2026-03-25 Jonas Beyrer , Elia Fioravanti