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Related papers: Torus knots as Hopfions

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We compare the values of the nonorientable three genus (or, crosscap number) and the nonorientable four genus of torus knots. In particular, let T(p,q) be any torus knot with p even and q odd. The difference between these two invariants on…

Geometric Topology · Mathematics 2020-01-08 Stanislav Jabuka , Cornelia A. Van Cott

We show that the problem of recognizing that a knot diagram represents a specific torus knot, or any torus knot at all, is in the complexity class ${\sf NP} \cap {\sf co\text{-}NP}$, assuming the generalized Riemann hypothesis. We also show…

Geometric Topology · Mathematics 2019-03-08 John A. Baldwin , Steven Sivek

Let $K$ be a genus $g$ alternating knot with Alexander polynomial $\Delta_K(T)=\sum_{i=-g}^ga_iT^i$. We show that if $|a_g|=|a_{g-1}|$, then $K$ is the torus knot $T_{2g+1,\pm2}$. This is a special case of the Fox Trapezoidal Conjecture.…

Geometric Topology · Mathematics 2020-07-30 Yi Ni

We give, using an explicit expression obtained in [V. Jones, Ann. of Math. 126, 335 (1987)], a basic hypergeometric representation of the HOMFLY polynomial of $(n,m)$ torus knots, and present a number of equivalent expressions, all related…

High Energy Physics - Theory · Physics 2014-11-11 Georgios Giasemidis , Miguel Tierz

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

Knots are familiar entities that appear at a captivating nexus of art, technology, mathematics, and science. As topologically stable objects within field theories, they have been speculatively proposed as explanations for diverse persistent…

We compute the Kauffman skein module of the complement of torus knots in S^3. Precisely, we show that these modules are isomorphic to the algebra of Sl(2,C)-characters tensored with the ring of Laurent polynomials.

Geometric Topology · Mathematics 2010-01-20 Julien Marche

Using the fiber bundle concept developed in geometry and topology, the fractionally quantized Hall conductivity is discussed in the relevant many--particle configuration space. Electron-magnetic field and electron-electron interactions…

Condensed Matter · Physics 2016-08-31 T. Asselmeyer , R. Keiper

It has been suggested recently that knots might exist as stable soliton solutions in a simple three-dimensional classical field theory, opening up a wide range of possible applications in physics and beyond. We have re-examined and extended…

High Energy Physics - Theory · Physics 2008-11-26 Richard A. Battye , Paul M. Sutcliffe

In this paper we compute a $q$-hypergeometric expression for the cyclotomic expansion of the colored Jones polynomial for the left-handed torus knot $(2,2t+1)$ and use this to define a family of quantum modular forms which are dual to the…

Number Theory · Mathematics 2014-09-23 Kazuhiro Hikami , Jeremy Lovejoy

Hopfions, three-dimensional topological solitons characterized by nontrivial Hopf indices, represent a fundamental class of field configurations that emerge across diverse areas of physics. Despite extensive studies of isolated hopfions, a…

Strongly Correlated Electrons · Physics 2025-12-02 Wen-Tao Hou , Zhuoxian Xiang , Yizhou Liu , Jiadong Zang

We introduce the deformed fermionic numbers, corresponding to the skein relations, the main characteristics of knots and links. These fermionic numbers allow one to restore the skein relations. For the Alexander (Jones) skein relation we…

Geometric Topology · Mathematics 2016-01-15 Anatoliy M. Pavlyuk

We define a Khovanov-Lipshitz-Sarkar stable homotopy type for the homotopical Khovanov homology of links in the thickened torus after the authors introduced that in the case of higher genus surfaces in the previous paper of this one.

Geometric Topology · Mathematics 2025-09-18 Louis H. Kauffman , Igor Mikhailovich Nikonov , Eiji Ogasa

This paper's theme is the relation between several classical and well-known objects: triangle Fuchsian groups, quasi-homogeneous singularities of plane curves, torus knot complements in the 3-sphere. Torus knots are the only nontrivial…

Geometric Topology · Mathematics 2013-08-28 Valdemar V. Tsanov

We construct an explicit isomorphism between the HOMFLY-PT homology of $(n,n+1)$ torus knots and the direct sum of hook isotypic components of the space of diagonal coinvariants. As a consequence, we compute the action of tautological…

Geometric Topology · Mathematics 2026-01-26 Eugene Gorsky , Anton Mellit

The aim of this paper is to realise the techniques of picture-valued invariants and invariants valued in free groups for long knots in the full torus. Such knots and links are of a particular interest because of their relation to Legendrian…

Algebraic Topology · Mathematics 2021-09-16 Sera Kim , Seongjeong Kim , Vassily Olegovich Manturov

In Theorem 1.2 of the paper math.GT/0002110 the author claimed to have proved that all transversal knots whose topological knot type is that of an iterated torus knot (we call them cable knots) are transversally simple. That theorem is…

Geometric Topology · Mathematics 2007-05-23 William W. Menasco

The twisted torus knots lie on the standard genus 2 Heegaard surface for $S^3$, as do the primitive/primitive and primitive/Seifert knots. It is known that primitive/primitive knots are fibered, and that not all primitive/Seifert knots are…

Geometric Topology · Mathematics 2015-05-21 Brandy Guntel Doleshal

By using the notion of a rigid R-matrix in a monoidal category and the Reshetikhin--Turaev functor on the category of tangles, we review the definition of the associated invariant of long knots. In the framework of the monoidal categories…

Quantum Algebra · Mathematics 2020-01-01 Rinat Kashaev

A knot K is called Gordian adjacent to a knot L if there exists an unknotting sequence for L containing K. We provide a sufficient condition for Gordian adjacency of torus knots via the study of knots in the thickened torus. We also…

Geometric Topology · Mathematics 2017-10-13 Peter Feller