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In this paper, we use skein-theoretic techniques to classify all virtual knot polynomials and trivalent graph invariants with certain smallness conditions. The first half of the paper classifies all virtual knot polynomials giving…

Quantum Algebra · Mathematics 2020-08-11 Joshua R. Edge

We study the distribution of arithmetic invariants associated to Alexander polynomials for certain infinite families of links. The families of links we consider arise from braids on a fixed number of strings. We explore analogies with…

Geometric Topology · Mathematics 2023-07-27 Anwesh Ray

In this paper we look at which Alexander and Markov theories can be defined for generalized knot theories

Geometric Topology · Mathematics 2019-02-13 Andrew Bartholomew , Roger Fenn

This paper discusses a generalization of virtual knot theory that we call multi-virtual knot theory. Multi-virtual knot theory uses a multiplicity of types of virtual crossings. As we will explain, this multiplicity is motivated by the way…

Geometric Topology · Mathematics 2026-03-17 Louis H Kauffman

In this paper, we define some polynomial invariants for virtual knots and links. In the first part we use Manturov's parity axioms to obtain a new polynomial invariant of virtual knots. This invariant can be regarded as a generalization of…

Geometric Topology · Mathematics 2013-12-31 Zhiyun Cheng , Hongzhu Gao

We consider an algebra of (classical or virtual) tangles over an ordered circuit operad and introduce Conway-type invariants of tangles which respect this algebraic structure. The resulting invariants contain both the coefficients of the…

Geometric Topology · Mathematics 2010-11-30 Michael Polyak

We give an alternative presentation of braided monoidal categories. Instead of the usual associativity and braiding we have just one constraint (the b-structure). In the unital case, the coherence conditions for a b-structure are shown to…

Category Theory · Mathematics 2013-07-24 Alexei Davydov , Ingo Runkel

The virtual genus of a virtual satellite link is equal to that of its companion.

Geometric Topology · Mathematics 2013-02-04 Daniel S. Silver , Susan G. Williams

In this paper, we shall introduce two monoids. One is called a PM-monoid which contains the symmetric group, the other is called a braid PM-monoid which contains the braid group. We shall develop the theory of PM-monoids and that of braid…

Combinatorics · Mathematics 2019-06-25 Toshinori Miyatani

A group is Markov if it admits a prefix-closed regular language of unique representatives with respect to some generating set, and strongly Markov if it admits such a language of unique minimal-length representatives over every generating…

Group Theory · Mathematics 2015-10-21 Alan J. Cain , Victor Maltcev

We introduce a local deformation called the virtualized $\Delta$-move for virtual knots and links. We prove that the virtualized $\Delta$-move is an unknotting operation for virtual knots. Furthermore we give a necessary and sufficient…

Geometric Topology · Mathematics 2024-01-24 Takuji Nakamura , Yasutaka Nakanishi , Shin Satoh , Kodai Wada

We extend the state models for Jones and Alexander polynomials of classical links to state models of 2-variable polynomials in the case of singular links. Moreover, we extend both of them to polynomials with d+1 variables for long singular…

Geometric Topology · Mathematics 2007-10-03 T. Fiedler

This paper investigates the parity concept in knotoids in $S^2$ and in $\mathbb{R}^2$ in relation with virtual knots. We show that the virtual closure map is not surjective and give specific examples of virtual knots that are not in the…

Geometric Topology · Mathematics 2019-05-13 Neslihan Gügümcü , Louis Kauffman

Virtual knots, defined by Kauffman, provide a natural generalization of classical knots. Most invariants of knots extend in a natural way to give invariants of virtual knots. In this paper we study the fundamental groups of virtual knots…

Geometric Topology · Mathematics 2007-05-23 Se-Goo Kim

We give a general procedure that provides, given any particular pretzel link, a braid whose closure is the pretzel link. Moreover, we manage to give a specific braid word in terms of the entries of the pretzel link.

Geometric Topology · Mathematics 2021-01-01 A. Del Pozo Manglano , P. M. G. Manchón

We enlarge a Coxeter group into a category, with one object for each finite parabolic subgroup, encoding the combinatorics of double cosets. This category, the singular Coxeter monoid, is connected to the geometry of partial flag varieties.…

Representation Theory · Mathematics 2021-08-16 Ben Elias , Hankyung Ko

We introduce an algebraic structure we call semiquandles whose axioms are derived from flat Reidemeister moves. Finite semiquandles have associated counting invariants and enhanced invariants defined for flat virtual knots and links. We…

Geometric Topology · Mathematics 2011-09-20 Allison Henrich , Sam Nelson

We associate to every positive braid a braid monodromy group, generalizing the geometric monodromy group of an isolated plane curve singularity. If the closure of the braid is a knot, we identify the corresponding group with a framed…

Geometric Topology · Mathematics 2025-03-12 Livio Ferretti

We describe an alternative way of computing Alexander polynomials of knots/links, based on the Artin representation of the corresponding braids by automorphisms of a free group. Then we apply the same method to other representations of…

Geometric Topology · Mathematics 2025-06-17 Vladimir Shpilrain

In 1997 M.~Khovanov proved that any doodle can be presented as closure of twin, this result is analogue of classical Alexander's theorem for braids and links. We give a description of twins that have equivalent closures, this theorem is…

Algebraic Topology · Mathematics 2018-07-18 Konstantin Gotin