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Related papers: Universal bounds for hyperbolic Dehn surgery

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We provide analogues for non-orientable surfaces with or without boundary or punctures of several basic theorems in the setting of the Thurston theory of surfaces which were developed so far only in the case of orientable surfaces. Namely,…

Geometric Topology · Mathematics 2013-10-02 Athanase Papadopoulos , Robert C. Penner

For $d=4, 5, 6$, we exhibit the first examples of complete finite volume hyperbolic $d$-manifolds $M$ with cusps such that infinitely many $d$-orbifolds $M_{m}$ obtained from $M$ by generalized Dehn filling admit properly convex real…

Geometric Topology · Mathematics 2018-04-02 Suhyoung Choi , Gye-Seon Lee , Ludovic Marquis

We prove two conjectures of C. Gordon. We show that the maximal number of exceptional Dehn surgeries on a 1-cusped hyperbolic 3-manifold is 10, and that the maximal intersection number between exceptional slopes is 8. The proof uses a…

Geometric Topology · Mathematics 2008-08-11 Marc Lackenby , Robert Meyerhoff

Given a hyperbolic subgroup $H$ of a hyperbolic group $G$ for which a Cannon-Thurston map $\hat i:\partial H \ra \partial G$ exists, we study the limit set $\Lambda_H$ of $H$ with respect to its action on $\partial G$. We prove that the set…

Geometric Topology · Mathematics 2013-08-23 Woojin Jeon , Ken'ichi Ohshika

We consider hyperbolic manifolds with boundary, which admit an ideal triangulation with n ideal triangles and one edge. We prove that the number of these manifolds is $\exp(n\ln(n)+O(n))$.

Combinatorics · Mathematics 2015-06-30 A. Magazinov , I. Shnurnikov

We give $L^2$-bounds on the change in the complex projective structure on the boundary of conformally compact hyperbolic 3-manifold with incompressible boundary after drilling short geodesics. We show that the change is bounded by a…

Geometric Topology · Mathematics 2023-08-07 Martin Bridgeman , Kenneth Bromberg

In this paper, we prove the Bounded Height Conjecture which the author formulated in [2]. As a corollary, it follows that there are only a finite number of hyperbolic three manifolds of bounded volume and trace field degree.

Geometric Topology · Mathematics 2014-09-09 BoGwang Jeon

In this paper, we study the problem of hyperball (hypersphere) packings in $n$-dimensional hyperbolic space ($n \ge 4$). We prove that to each $n$-dimensional congruent saturated hyperball packing, there is an algorithm to obtain a…

Metric Geometry · Mathematics 2025-06-16 Arnasli Yahya , Jenő Szirmai

We give sharp upper bounds on the injectivity radii of complete hyperbolic surfaces of finite area with some geodesic boundary components. The given bounds are over all such surfaces with any fixed topology; in particular, boundary lengths…

Geometric Topology · Mathematics 2020-05-14 Jason DeBlois , Kim Romanelli

We obtain upper and lower bounds on the difference between the renormalized volume and the volume of the convex core of a convex cocompact hyperbolic 3-manifold which depend on the injectivity radius of the boundary of the universal cover…

Differential Geometry · Mathematics 2017-07-10 Martin Bridgeman , Richard Canary

This paper gives the first explicit, two-sided estimates on the cusp area of once-punctured torus bundles, 4-punctured sphere bundles, and 2-bridge link complements. The input for these estimates is purely combinatorial data coming from the…

Geometric Topology · Mathematics 2010-11-25 David Futer , Efstratia Kalfagianni , Jessica S. Purcell

In this paper, we explicitly construct large classes of incommensurable hyperbolic knot complements with the same volume and the same initial (complex) length spectrum. Furthermore, we show that these knot complements are the only knot…

Geometric Topology · Mathematics 2017-09-19 Christian Millichap

We prove a tubular neighborhood theorem for an embedded complex geodesic surface in a complex hyperbolic 2-manifold where the width of the tube depends only on the Euler characteristic of the embedded surface. We give an explicit estimate…

Geometric Topology · Mathematics 2024-02-05 Ara Basmajian , Youngju Kim

We give an upper bound for the number of compact essential orientable non-isotopic surfaces, with Euler characteristic at least some constant $\chi$, properly embedded in a finite-volume hyperbolic 3-manifold $M$, closed or cusped. This…

Geometric Topology · Mathematics 2026-03-05 Marc Lackenby , Anastasiia Tsvietkova

It is shown that with finitely many exceptions, the fundamental group obtained by Dehn surgery on a one cusped hyperbolic 3-manifold contains the fundamental group of a closed surface.

Geometric Topology · Mathematics 2014-11-11 D Cooper , D D Long

Let $M$ be a hyperbolic 3-manifold with no rank two cusps admitting an embedding in $\mathbb S^3$. Then, if $M$ admits an exhaustion by $\pi_1$-injective sub-manifolds there exists cantor sets $C_n\subset \mathbb S^3$ such that $N_n=\mathbb…

Geometric Topology · Mathematics 2021-10-12 Tommaso Cremaschi , Franco Vargas Pallete

Let N be a topologically finite, orientable 3-manifold with ideal triangulation. We show that if there is a solution to the hyperbolic gluing equations, then all edges in the triangulation are essential. This result is extended to a…

Geometric Topology · Mathematics 2011-07-07 Henry Segerman , Stephan Tillmann

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

In this paper we give lower and upper bounds for the volume growth of a regular hyperbolic simplex, namely for the ratio of the $n$-dimensional volume of a regular simplex and the $(n-1)$-dimensional volume of its facets. In addition to the…

Metric Geometry · Mathematics 2016-01-18 Ákos G. Horváth

If a hyperbolic 3-manifold admits an exceptional Dehn filling, then the length of the slope of that Dehn filling is known to be at most six. However, the bound of six appears to be sharp only in the toroidal case. In this paper, we…

Geometric Topology · Mathematics 2017-12-06 Neil R. Hoffman , Jessica S. Purcell