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Related papers: Volume bounds for generalized twisted torus links

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We consider surface links in the 4-space which are presented by the form of simple branched coverings over the standard torus, which we call torus-covering links. In this paper, we study unknotting numbers of torus-covering links. In some…

Geometric Topology · Mathematics 2012-06-07 Inasa Nakamura

In Guts, Volume and Skein Modules of 3-Manifolds (arXiv:2010.06559), we showed that the twist number of certain hyperbolic weakly generalized alternating links can be recovered from a Jones-like polynomial, and offers a lower bound for the…

Geometric Topology · Mathematics 2021-04-06 Brandon Bavier

It is conjectured that every cusped hyperbolic 3-manifold admits a geometric triangulation, i.e. it is decomposed into positive volume ideal hyperbolic tetrahedra. Here, we show that sufficiently highly twisted knots admit a geometric…

Geometric Topology · Mathematics 2023-06-14 Sophie L. Ham , Jessica S. Purcell

We consider volumes of two families of links that have been the focus of recent results on geometry, namely weakly generalised alternating (WGA) links and fully augmented links (FAL). Both have known lower bounds on hyperbolic volume in…

Geometric Topology · Mathematics 2025-05-28 Corbin Reid

We study Kauffman's model of folded ribbon knots: knots made of a thin strip of paper folded flat in the plane. The folded ribbonlength is the length to width ratio of such a ribbon knot. We give upper bounds on the folded ribbonlength of…

Geometric Topology · Mathematics 2025-09-24 Elizabeth Denne , John Carr Haden , Troy Larsen , Emily Meehan

On a hyperbolic surface homeomorphic to a torus with a puncture, each oriented simple geodesic inherits a well-defined relative twist number in $[0,1]$, given by the ratio to its hyperbolic length of the hyperbolic distance between the…

Geometric Topology · Mathematics 2023-12-12 Jonah Gaster

Take a thin, rectangular strip of paper, add in an odd number of half-twists, then join the ends together. This gives a multi-twist paper M\"obius band. We prove that any multi-twist paper M\"obius band can be constructed so the aspect…

Geometric Topology · Mathematics 2025-10-29 Elizabeth Denne , Timi Patterson

We prove the volume conjecture for any twist knots by using an equivalence relation, complex analysis, analytic continuation, and function of several complex variables on the basis of colored Jones polynomials.

Geometric Topology · Mathematics 2024-06-04 Sukuse Abe

We show that the volume of any Montesinos link can be bounded above and below in terms of the combinatorics of its diagram. This was known for Montesinos links with at most two tangles, and those with at least five tangles. We complete the…

Geometric Topology · Mathematics 2016-03-09 Kathleen Finlinson , Jessica S. Purcell

We define families of aperiodic words associated to Lorenz knots that arise naturally as syllable permutations of symbolic words corresponding to torus knots. An algorithm to construct symbolic words of satellite Lorenz knots is defined. We…

Geometric Topology · Mathematics 2014-09-25 Paulo Gomes , Nuno Franco , Luis Silva

This paper proves lower bounds on the volume of a hyperbolic 3-orbifold whose singular locus is a link. We identify the unique smallest volume orbifold whose singular locus is a knot or link in the 3-sphere, or more generally in a Z_6…

Geometric Topology · Mathematics 2014-06-18 Christopher K. Atkinson , David Futer

We consider knots whose diagrams have a high amount of twisting of multiple strands. By encircling twists on multiple strands with unknotted curves, we obtain a link called a generalized augmented link. Dehn filling this link gives the…

Geometric Topology · Mathematics 2009-06-26 Jessica S. Purcell

In the present note, we will show that there are infinitely many composite twisted torus knots.

Geometric Topology · Mathematics 2011-09-16 Kanji Morimoto

We study simple, knotted and linked torus windings that are made of tubes of finite thickness. Knots which have the shortest rope length are often denoted ideal structures. Conventionally, the ideal structure are found by rope shortening…

General Physics · Physics 2015-06-16 Kasper W Olsen , Jakob Bohr

Torus knots are an important family of knots about which much is understood; invariants of torus knots often exhibit nice formulas, making them convenient and fundamental building blocks for examples in knot theory. Spiral knots, defined…

Geometric Topology · Mathematics 2025-06-24 Sarah Blackwell , Ashish Das , Sydney Mayer , Luke Moyar , Faisal Quraishi , Ryan Stees

An upper bound of the superbridge index of the connected sum of two knots is given in terms of the braid index of the summands. Using this upper bound and minimal polygonal presentations, we give an upper bound in terms of the superbridge…

Geometric Topology · Mathematics 2007-05-23 Gyo Taek Jin

This work is concerned with the calculation of the fundamental group of torus knots. Torus knots are special types of knots which wind around a torus a number of times in the longitudinal and meridional directions. We compute and describe…

Geometric Topology · Mathematics 2022-04-20 Ilyas Aderogba Mustapha , Paul Arnaud Songhafouo , Donald Stanley

In a group, a non-trivial element is called a generalized torsion element if some non-empty finite product of its conjugates equals to the identity. We say that a knot has generalized torsion if its knot group admits such an element. For a…

Geometric Topology · Mathematics 2021-06-29 Kimihiko Motegi , Masakazu Teragaito

We prove that for hyperbolic fibered knots in any closed, connected, oriented 3-manifold the volume and genus are unrelated. As an application we answer a question of Hirose, Kalfagianni, and Kin about volumes of mapping tori that are…

Geometric Topology · Mathematics 2026-04-08 J. Robert Oakley

We prove that the knots and links in the infinite set of $3$-highly twisted $2m$-plats, with $m \geq 2$, are all hyperbolic. This should be compared with a result of Futer-Purcell for $6$-highly twisted diagrams. While their proof uses…

Geometric Topology · Mathematics 2021-11-30 Nir Lazarovich , Yoav Moriah , Tali Pinsky