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We show that the number of isometry classes of cusped hyperbolic $3$-manifolds that bound geometrically grows at least super-exponentially with their volume, both in the arithmetic and non-arithmetic settings.

Geometric Topology · Mathematics 2021-01-05 Alexander Kolpakov , Stefano Riolo

We show that if a cusped hyperbolic manifold is Platonic, i.e., can be decomposed into isometric Platonic solids, it can also be decomposed into geodesic ideal tetrahedra.

Geometric Topology · Mathematics 2017-10-18 Matthias Goerner

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

We show that cusped finite-volume hyperbolic 3-manifolds contain infinitely many simple closed geodesics.

Geometric Topology · Mathematics 2021-10-28 Feihuang Xia

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

Extending methods first used by Casson, we show how to verify a hyperbolic structure on a finite triangulation of a closed 3-manifold using interval arithmetic methods. A key ingredient is a new theoretical result (akin to a theorem by…

Geometric Topology · Mathematics 2021-04-06 Matthias Goerner

It is well known that every compact oriented 3-manifold admits an ideal triangulation, and that any two such triangulations with at least two ideal tetrahedra are related by a sequence of Pachner $2$-$3$ moves. Motivated by constructions in…

Geometric Topology · Mathematics 2026-05-29 Stavros Garoufalidis , Rinat Kashaev , Sakie Suzuki

This notes explores angle structures on ideally triangulated compact $3$-manifolds with high genus boundary. We show that the existence of angle structures implies the existence of a hyperbolic metric with totally geodesic boundary, and…

Geometric Topology · Mathematics 2014-05-13 Faze Zhang , Ruifeng Qiu , Tian Yang

Let $M$ be a volume finite non-compact complete hyperbolic $n$-manifold with totally geodesic boundary. We show that there exists a polyhedral decomposition of $M$ such that each cell is either an ideal polyhedron or a partially truncated…

Geometric Topology · Mathematics 2024-09-16 Ge Huabin , Jia Longsong , Zhang Faze

We classify the orientable finite-volume hyperbolic 3-manifolds having non-empty compact totally geodesic boundary and admitting an ideal triangulation with at most four tetrahedra. We also compute the volume of all such manifolds, we…

Geometric Topology · Mathematics 2011-09-06 Roberto Frigerio , Bruno Martelli , Carlo Petronio

We realize every closed flat 3-manifold as a cusp section of a complete, finite-volume hyperbolic 4-manifold whose symmetry group acts transitively on the set of cusps. Moreover, for every such 3-manifold, a dense subset of its flat metrics…

Geometric Topology · Mathematics 2026-04-08 Jacopo Guoyi Chen , Edoardo Rizzi

Torsion polynomials connect the genus of a hyperbolic knot (a topological invariant) with the discrete faithful representation (a geometric invariant). Using a new combinatorial structure of an ideal triangulation of a 3-manifold that…

Geometric Topology · Mathematics 2024-03-19 Stavros Garoufalidis , Seokbeom Yoon

To a hyperbolic manifold one can associate a canonical projective structure and ask whether it can be deformed or not. In a cusped manifold, one can ask about the existence of deformations that are trivial on the boundary. We prove that if…

Geometric Topology · Mathematics 2016-01-20 Michael Heusener , Joan Porti

We investigate relation between Dehn fillings and commensurability of hyperbolic 3-manifolds. The set consisting of the commensurability classes of hyperbolic 3-manifolds admits the quotient topology induced by the geometric topology. We…

Geometric Topology · Mathematics 2022-03-17 Ken'ichi Yoshida

We show that any two geometric triangulations of a closed hyperbolic, spherical or Euclidean manifold are related by a sequence of Pachner moves and barycentric subdivisions of bounded length. This bound is in terms of the dimension of the…

Geometric Topology · Mathematics 2021-02-08 Tejas Kalelkar , Advait Phanse

We describe five ideal triangulations of the 3-cusped hyperbolic `magic manifold' that are each compatible with well-established techniques for triangulating Dehn fillings. Using these techniques, we construct low-complexity triangulations…

Geometric Topology · Mathematics 2025-03-11 Em K. Thompson

We prove existence of thick geodesic triangulations of hyperbolic 3-manifolds and use this to prove existence of universal bounds on the principal curvatures of surfaces embedded in hyperbolic 3-manifolds.

Geometric Topology · Mathematics 2010-11-23 William Breslin

For a given cusped 3-manifold $M$ admitting an ideal triangulation, we describe a method to rigorously prove that either $M$ or a filling of $M$ admits a complete hyperbolic structure via verified computer calculations. Central to our…

The set of canonical decompositions of a cusped hyperbolic 3-manifold is a complete topological invariant. However, there are only a handful of infinite families for which canonical decompositions are known. In this paper, we find canonical…

Geometric Topology · Mathematics 2023-11-17 Sophie L. Ham

We define for each g>=2 and k>=0 a set M_{g,k} of orientable hyperbolic 3-manifolds with $k$ toric cusps and a connected totally geodesic boundary of genus g. Manifolds in M_{g,k} have Matveev complexity g+k and Heegaard genus g+1, and…

Geometric Topology · Mathematics 2007-05-23 Roberto Frigerio , Bruno Martelli , Carlo Petronio