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Using computational techniques we tabulate prime knots up to five crossings in the solid torus and the infinite family of lens spaces $L(p,q)$. For these knots we calculate the second and third skein module and establish which prime knots…

Geometric Topology · Mathematics 2017-03-16 Boštjan Gabrovšek

We derive geometric formulas for the mass of asymptotically hyperbolic manifolds using coordinate horospheres. As an application, we obtain a new rigidity result of hyperbolic space: if a complete asymptotically hyperbolic manifold has…

Differential Geometry · Mathematics 2022-03-30 Hyun Chul Jang , Pengzi Miao

It is well known that knots are countable in ordinary knot theory. Recently, knots {\it with intersections} have raised a certain interest, and have been found to have physical applications. We point out that such knots --equivalence…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Norbert Grot , Carlo Rovelli

The combinatorial hierarchical hyperbolicity criterion is a very useful way of constructing new hierarchically hyperbolic spaces (HHSs). We show that, conversely, HHSs satisfying natural assumptions (satisfied, for example, by mapping class…

Group Theory · Mathematics 2026-03-25 Mark Hagen , Giorgio Mangioni , Alessandro Sisto

We exhibit an infinite family of knots in the Poincare homology sphere with tunnel number 2 that have a lens space surgery. Notably, these knots are not doubly primitive and provide counterexamples to a few conjectures. In the appendix, it…

Geometric Topology · Mathematics 2020-03-18 Kenneth L. Baker , Neil R. Hoffman

We investigate commensurability classes of hyperbolic knot complements in the generic case of knots without hidden symmetries. We show that such knot complements which are commensurable are cyclically commensurable, and that there are at…

Geometric Topology · Mathematics 2014-11-11 Michel Boileau , Steven Boyer , Radu Cebanu , Genevieve S. Walsh

We give examples of harmonic maps between negatively curved manifolds with special properties. These negatively curved manifolds do not have the homotopy type of a locally symmetric space.

Differential Geometry · Mathematics 2007-05-23 F. T. Farrell , P. Ontaneda

We carry out "exotic gluings" a la Carlotto-Schoen for asymptotically hyperbolic general relativistic initial data sets. In particular we obtain a direct construction of non-trivial initial data sets which are exactly hyperbolic in large…

Differential Geometry · Mathematics 2016-08-04 P. T. Chruściel , E. Delay

We determine when certain state cycles represent nontrivial Khovanov homology classes by analyzing features of the state graph. Using this method, we are able to produce hyperbolic knots with arbitrarily many diagonals containing nontrivial…

Geometric Topology · Mathematics 2009-07-03 Andrew Elliott

We show that a hyperbolic 2-bridge knot complement is the unique knot complement in its commensurability class. We also discuss constructions of commensurable hyperbolic knot complements and put forth a conjecture on the number of…

Geometric Topology · Mathematics 2016-01-20 Alan W. Reid , Genevieve S. Walsh

In this paper we study contact nonholonomic mechanical sys\-tems. We construct a general framework for non-holonomic constraints in contact geometry and, in this framework, we define different nonholonomic brackets using con\-venient…

Differential Geometry · Mathematics 2024-03-19 Manuel De León , Víctor M. Jiménez

We discuss asymptotically hyperbolic manifold with a noncompact boundary which is close to a horosphere in a certain sense. The model case is a horoball or the complement of a horoball in standard hyperbolic space. We show some geometric…

Differential Geometry · Mathematics 2021-02-18 Xiaoxiang Chai

We construct symmetric convex bodies that are not intersection bodies, but all of their central hyperplane sections are intersection bodies. This result extends the studies by Weil in the case of zonoids and by Neyman in the case of…

Functional Analysis · Mathematics 2007-05-23 M. Yaskina

We provide a diagrammatic criterion for semi-adequate links to be hyperbolic. We also give a conjectural description of the satellite structures of semi-adequate links. One application of our result is that the closures of sufficiently…

Geometric Topology · Mathematics 2016-02-12 David Futer , Efstratia Kalfagianni , Jessica S. Purcell

For any n\ge 2, we give infinitely many unsplittable links of n components in the 3-sphere which admit non-trivial surgery yielding the 3-sphere again and whose components are mutually distinct hyperbolic knots. Berge and Kawauchi gave…

Geometric Topology · Mathematics 2007-05-23 Masakazu Teragaito

We show that if there exists a knot in $S^3$ that admits purely cosmetic surgeries, then there exists a hyperbolic one with this property.

Geometric Topology · Mathematics 2025-09-03 Qiuyu Ren

This article simply presents several coordinate systems for 2 and 3-dimensional hyperbolic spaces, describing the general solutions of Helmholtz equation in each one of these systems.

Mathematical Physics · Physics 2007-05-23 S. S. e Costa

We construct examples of inhomogeneous isoparametric real hypersurfaces in complex hyperbolic spaces.

Differential Geometry · Mathematics 2010-11-24 J. Carlos Diaz-Ramos , Miguel Dominguez-Vazquez

The goal of this mostly expository paper is to present several candidates for hyperbolic structures on irreducible Artin-Tits groups of spherical type and to elucidate some relations between them. Most constructions are algebraic analogues…

Geometric Topology · Mathematics 2019-08-29 Matthieu Calvez , Bert Wiest

We show that there are prime knots so that the Steenrod operations of Lipshitz and Sarkar arXiv:1204.5776 are non trivial on their Khovanov homology. This answers a question posed by Lipshitz and Sarkar in their paper arXiv:1709.03602. We…

Geometric Topology · Mathematics 2022-11-01 Holt Bodish