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This paper studies rotational virtual knot theory and its relationship with quantum link invariants. Every quantum link invariant for classical knots and links extends to an invariant of rotational virtual knots and links. The paper sets up…

Geometric Topology · Mathematics 2015-12-08 Louis H. Kauffman

Knot concordance plays a crucial role in the low dimensional topology. We propose a very elementary techniques which allows one to construct a lot of sliceness obstructions for knots in the full torus. Our approach deals with group…

Geometric Topology · Mathematics 2022-03-22 Vassily Olegovich Manturov , Igor Mikhailovich Nikonov

We construct various functorial maps (projections) from virtual knots to classical knots. These maps are defined on diagrams of virtual knots; in terms of Gauss diagram each of them can be represented as a deletion of some chords. The…

Geometric Topology · Mathematics 2012-09-04 Vassily Olegovich Manturov

A virtual string can be defined as an equivalence class of planar diagrams under certain kinds of diagrammatic moves. Virtual strings are related to virtual knots in that a simple operation on a virtual knot diagram produces a diagram for a…

Geometric Topology · Mathematics 2009-09-29 Andrew Gibson

The combinatorial approach to knot theory treats knots as diagrams modulo Reidemeister moves. Many constructions of knot invariants (e.g., index polynomials, quandle colorings, etc.) use elements of diagrams such as arcs and crossings by…

Geometric Topology · Mathematics 2025-04-29 Igor Nikonov

We determine the action of the Kauffman bracket skein algebra of the torus on the Kauffman bracket skein module of the complement of the 3-twist knot. The point is to study the relationship between knot complements and their boundary tori,…

Geometric Topology · Mathematics 2021-02-12 Razvan Gelca , Hongwei Wang

A chord diagram is a circle with paired points with each pair of points connected by a chord. Every generic immersed spherical curve provides a chord diagram by associating each chord with two preimages of a double point. Any two spherical…

Geometric Topology · Mathematics 2020-05-04 Noboru Ito , Yusuke Takimura

We identify the space of tangentially straightened long knots in R^m, for m greater than or equal to 4, as the double loops on the space of derived operad maps from the associative operad into a version of the little m-disk operad. This…

Algebraic Topology · Mathematics 2014-11-11 William Dwyer , Kathryn Hess

Simple physics ideas are used to derive an exact expression for a flat connection on the complement of a torus knot. The result is of some mathematical importance in the context of constructing representations of the knot group -- a…

Mathematical Physics · Physics 2015-01-09 V. V. Sreedhar

A 2-uniform tiling is an edge-to-edge tiling by regular polygons having $2$ distinct transitivity classes of vertices. There are 20 distinct 2-uniform tilings (these are of $14$ different types) on the plane, and since the plane is the…

Geometric Topology · Mathematics 2021-09-02 Dipendu Maity , Debashis Bhowmik , Marbarisha M. Kharkongor

We define a generalization of virtual links to arbitrary dimensions by extending the geometric definition due to Carter et al. We show that many homotopy type invariants for classical links extend to invariants of virtual links. We also…

Geometric Topology · Mathematics 2014-07-03 Blake Winter

By a fixed continuous map from a $3$-space to itself, a knot in the $3$-space may be mapped to another knot in the $3$-space. We analyze possible knot types of them. Then we map a knot repeatedly by a fixed continuous map and analyze…

Geometric Topology · Mathematics 2014-09-04 Kouki Taniyama

S. Satoh has defined a construction to obtain a ribbon torus knot given a welded knot. This construction is known to be surjective. We show that it is not injective. Using the invariant of the peripheral structure, it is possible to provide…

Geometric Topology · Mathematics 2008-08-08 Blake Winter

It is shown that Legendrian (resp. transverse) cable links in the 3-sphere with its standard tight contact structure, i.e. links consisting of an unknot and a cable of that unknot, are classified by their oriented link type and the…

Symplectic Geometry · Mathematics 2007-12-18 Fan Ding , Hansjörg Geiges

Kuperberg [Algebr. Geom. Topol. 3 (2003) 587-591] has shown that a virtual knot corresponds (up to generalized Reidemeister moves) to a unique embedding in a thichened surface of minimal genus. If a virtual knot diagram is equivalent to a…

Geometric Topology · Mathematics 2014-10-01 H. A. Dye , Louis H. Kauffman

The connected sum of two flat virtual knots depends on the choice of diagrams and basepoints. We show that any minimal crossing diagram of a composite flat virtual knot is a connected sum diagram. We also show the crossing number of flat…

Geometric Topology · Mathematics 2024-07-26 Jie Chen

We consider the problem of counting and of listing topologically inequivalent "planar" {4-valent} maps with a single component and a given number n of vertices. This enables us to count and to tabulate immersions of a circle in a sphere…

Combinatorics · Mathematics 2016-08-19 Robert Coquereaux , Jean-Bernard Zuber

In this paper we introduce a representation of knots and links called a cube diagram. We show that a property of a cube diagram is a link invariant if and only if the property is invariant under two types of cube diagram operations. A knot…

Geometric Topology · Mathematics 2012-05-24 Scott Baldridge , Adam Lowrance

For a virtual knot $K$ and an integer $r\geq 0$, the $r$-covering $K^{(r)}$ is defined by using the indices of chords on a Gauss diagram of $K$. In this paper, we prove that for any finite set of virtual knots $J_0,J_2,J_3,\dots,J_m$, there…

Geometric Topology · Mathematics 2018-11-28 Takuji Nakamura , Yasutaka Nakanishi , Shin Satoh

Virtual knot theory has experienced a lot of nice features that did not appear in classical knot theory, e.g., parity and picture-valued invariants. In the present paper we use virtual knot theory effects to construct new representations of…

Geometric Topology · Mathematics 2023-03-03 V. O. Manturov , I. M. Nikonov