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If a knot has the Alexander polynomial not equal to 1, then it is linear $n$-colorable. By means of such a coloring, such a knot is given an upper bound for the minimal quandle order, i.e., the minimal order of a quandle with which the knot…

Geometric Topology · Mathematics 2012-02-29 Chuichiro Hayashi , Miwa Hayashi , Kanako Oshiro

Fox coloring provides a combinatorial framework for studying dihedral representations of the knot group. The less well-known concept of Dehn coloring captures the same data. Recent work of Carter-Silver-Williams clarifies the relationship…

Geometric Topology · Mathematics 2015-10-08 Alexander Madaus , Maisie Newman , Heather M. Russell

This expository paper describes how the knot invariant Fox coloring can be applied to tangles.

Geometric Topology · Mathematics 2007-05-23 Isabel K. Darcy , Junalyn Navarra-Madsen

We investigate Fox colorings of knots that are 17-colorable. Precisely, we prove that any 17-colorable knot has a diagram such that exactly 6 among the seventeen colors are assigned to the arcs of the diagram.

Geometric Topology · Mathematics 2020-09-29 Hamid Abchir , Mohamed Elhamdadi , Soukaina Lamsifer

Knot colorings are one of the simplest ways to distinguish knots, dating back to Reidemeister, and popularized by Fox. In this mostly expository article, we discuss knot invariants like colorability, knot determinant and number of…

Geometric Topology · Mathematics 2019-10-18 Sudipta Kolay

In this paper we look for closed expressions to calculate the number of colourings of prime knots for given linear Alexander quandles. For this purpose the colouring matrices are simplified to a triangular form, when possible. The…

Geometric Topology · Mathematics 2013-03-21 Luís Camacho , F. Miguel Dionísio , Roger Picken

This article is about applications of linear algebra to knot theory. For example, for odd prime p, there is a rule (given in the article) for coloring the arcs of a knot or link diagram from the residues mod p. This is a knot invariant in…

Geometric Topology · Mathematics 2018-04-10 Louis H. Kauffman , Pedro Lopes

We consider the number of colors for the colorings of links by the symmetric group $S_3$ of degree $3$. For knots, such a coloring corresponds to a Fox 3-coloring, and thus the number of colors must be 1 or 3. However, for links, there are…

Geometric Topology · Mathematics 2022-10-05 Kazuhiro Ichihara , Eri Matsudo

We inductively define layers of colorings of knot and knotted surface diagrams using ternary quasigroups. Homological invariants from such systems of colorings use shorter differentials and of higher degree than the standard homology…

Geometric Topology · Mathematics 2019-03-27 Maciej Niebrzydowski

This paper has two-fold goal: it provides gentle introduction to Knot Theory starting from 3-coloring, the concept introduced by R. Fox to allow undergraduate students to see that the trefoil knot is non-trivial, and ending with statistical…

Geometric Topology · Mathematics 2007-05-23 Jozef H. Przytycki

We study the Fox coloring invariants of rational knots. We express the propagation of the colors down the twists of these knots and ultimately the determinant of them with the help of finite increasing sequences whose terms of even order…

Geometric Topology · Mathematics 2009-08-23 Louis H. Kauffman , Pedro Lopes

This is a report on our ongoing research on a combinatorial approach to knot recognition, using coloring of knots by certain algebraic objects called quandles. The aim of the paper is to summarize the mathematical theory of knot coloring in…

Geometric Topology · Mathematics 2016-03-03 Andrew Fish , Alexei Lisitsa , David Stanovský

Coloring numbers are one of the simplest combinatorial invariants of knots and links to describe. And with Joyce's introduction of quandles, we can understand them more algebraically. But can we extend these invariants to tangles -- knots…

Geometric Topology · Mathematics 2008-03-12 John Armstrong

This paper is base on talks which I gave in May, 2010 at Workshop in Trieste (ICTP). In the first part we present an introduction to knots and knot theory from an historical perspective, starting from Summerian knots and ending on Fox…

Geometric Topology · Mathematics 2011-05-12 Jozef H. Przytycki

We say a proper coloring of a graph is distance-$k$ fall if every vertex is within distance $k$ of at least one vertex of every color. We show that if $G$ is a connected graph of order at least $3$ that is $3$-colorable, thenit has a…

Combinatorics · Mathematics 2025-09-01 Wayne Goddard , Sonwabile Mafunda

Three-dimensional three-colour percolation on a lattice made of tetrahedra is a direct generalization of two-dimensional two-colour percolation on the triangular lattice. The interfaces between one-colour clusters are made of bicolour…

Mathematical Physics · Physics 2019-05-21 Marthe de Crouy-Chanel , Damien Simon

It is well-known that a knot is Fox $n$-colorable for a prime $n$ if and only if the knot group admits a surjective homomorphism to the dihedral group of degree $n$. However, this is not the case for links with two or more components. In…

Geometric Topology · Mathematics 2024-04-30 Kazuhiro Ichihara , Katsumi Ishikawa , Eri Matsudo , Masaaki Suzuki

In this article we show that if a knot diagram admits a non-trivial coloring modulo 13 then there is an equivalent diagram which can be colored with 5 colors. Leaning on known results, this implies that the minimum number of colors modulo…

Geometric Topology · Mathematics 2015-10-06 Filipe Bento , Pedro Lopes

In this paper, we give a method to evaluate minimum numbers of Dehn colors for knots by using symmetric local biquandle cocycle invariants. We give answers to some questions arising as a consequence of our previous paper [6]. In particular,…

Geometric Topology · Mathematics 2025-04-08 Eri Matsudo , Kanako Oshiro , Gaishi Yamagishi

A necklace or bracelet is \textit{colorful} if no pair of adjacent beads are the same color. In addition, two necklaces are \textit{equivalent} if one results from the other by permuting its colors, and two bracelets are \textit{equivalent}…

Combinatorics · Mathematics 2019-03-06 Dennis S. Bernstein , Omran Kouba
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