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Previously we have proposed that in certain relativistic quantum field theories knotlike configurations may appear as stable solitons. Here we present a detailed investigation of the simplest knotted soliton, the torus-shaped unknot.

High Energy Physics - Theory · Physics 2009-09-25 L. Faddeev , A. J. Niemi

Hyperfinite knots, or limits of equivalence classes of knots induced by a knot invariant taking values in a metric space, were introduced in a previous article by the author. In this article, we present new examples of hyperfinite knots…

Geometric Topology · Mathematics 2009-11-13 Pedro Lopes

We show that for many classical knots one can find generalized torsion in the fundamental group of its complement, commonly called the knot group. It follows that such a group is not bi-orderable. Examples include all torus knots, the…

Algebraic Topology · Mathematics 2019-08-15 Geoff Naylor , Dale Rolfsen

We give an algorithm for computing the knot Floer homology of a $ (1,1) $ knot from a particular presentation of its fundamental group.

Geometric Topology · Mathematics 2024-12-25 Matthew Hedden , Jiajun Wang , Xiliu Yang

We classify Legendrian torus knots and figure eight knots in the tight contact structure on the 3-sphere up to Legendrian isotopy. As a corollary to this we also obtain the classification of transversal torus knots and figure eight knots up…

Geometric Topology · Mathematics 2007-05-23 John B. Etnyre , Ko Honda

We prove that Khovanov homology with coefficients in $\mathbb{Z}/2\mathbb{Z}$ detects the $(2,5)$ torus knot. Our proof makes use of a wide range of deep tools in Floer homology, Khovanov homology, and Khovanov homotopy. We combine these…

Geometric Topology · Mathematics 2025-04-10 John A. Baldwin , Ying Hu , Steven Sivek

Let \nu be any integer-valued additive knot invariant that bounds the smooth 4-genus of a knot K, |\nu(K)| <= g_4(K), and determines the 4-ball genus of positive torus knots, \nu(T_{p,q}) = (p-1)(q-1)/2. Either of the knot concordance…

Geometric Topology · Mathematics 2009-03-10 Charles Livingston , Swatee Naik

Using a combinatorial approach described in a recent paper of Manolescu, Ozsv\'ath, and Sarkar we compute the Heegaard-Floer knot homology of all knots with at most 12 crossings as well as the $\tau$ invariant for knots through 11…

Geometric Topology · Mathematics 2007-05-23 John A. Baldwin , W. D. Gillam

We propose a spectral curve describing torus knots and links in the B-model. In particular, the application of the topological recursion to this curve generates all their colored HOMFLY invariants. The curve is obtained by exploiting the…

High Energy Physics - Theory · Physics 2015-05-28 Andrea Brini , Bertrand Eynard , Marcos Marino

The volume conjecture, formulated recently by H. Murakami and J. Murakami, is proved for the case of torus knots.

Geometric Topology · Mathematics 2007-05-23 R. M. Kashaev , O. Tirkkonen

We study the four-genus of linear combinations of torus knots: aT(p,q) # -bT(p',q'). Fixing positive p, q, p', and q', our focus is on the behavior of the four-genus as a function of positive a and b. Three types of examples are presented:…

Geometric Topology · Mathematics 2018-06-20 Charles Livingston , Cornelia A. Van Cott

Knot mosaic theory was introduced by Lomonaco and Kauffman in the paper on `Quantum knots and mosaics' to give a precise and workable definition of quantum knots, intended to represent an actual physical quantum system. A knot (m,n)-mosaic…

Geometric Topology · Mathematics 2017-03-16 Seungsang Oh , Kyungpyo Hong , Ho Lee , Hwa Jeong Lee , Mi Jeong Yeon

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

A slope $\frac pq$ is called a characterizing slope for a given knot $K_0\subset S^3$ if whenever the $\frac pq$--surgery on a knot $K\subset S^3$ is homeomorphic to the $\frac pq$--surgery on $K_0$ via an orientation preserving…

Geometric Topology · Mathematics 2021-06-08 Yi Ni , Xingru Zhang

The 2-loop polynomial is a polynomial presenting the 2-loop part of the Kontsevich invariant of knots. We show a cabling formula for the 2-loop polynomial of knots. In particular, we calculate the 2-loop polynomial for torus knots.

Geometric Topology · Mathematics 2007-05-23 Tomotada Ohtsuki

For pattern knots admitting genus-one bordered Heegaard diagrams, we show the knot Floer chain complexes of the corresponding satellite knots can be computed using immersed curves. This, in particular, gives a convenient way to compute the…

Geometric Topology · Mathematics 2021-07-09 Wenzhao Chen

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

We show that most cabled knots over torus knots in $S^3$ satisfy the AJ-conjecture, namely each $(r,s)$-cabled knot over each $(p,q)$-torus knot satisfies the $AJ$-conjecture if $r$ is not a number between $0$ and $pqs$.

Geometric Topology · Mathematics 2014-03-10 Dennis Ruppe , Xingru Zhang

Determining when two knots are equivalent (more precisely isotopic) is a fundamental problem in topology. Here we formulate this problem in terms of Predicate Calculus, using the formulation of knots in terms of braids and some basic…

Logic · Mathematics 2012-09-18 Siddhartha Gadgil , T. V. H. Prathamesh

For any knot with genus one and unknotting number one, other than the figure-eight knot, we prove that there is exactly one way to unknot it by means of a crossing change. In the case of the figure-eight knot, we prove that there are…

Geometric Topology · Mathematics 2009-05-15 Alexander Coward , Marc Lackenby