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In this paper, we define the set of singular grid diagrams $\mathcal{SG}$ which provides a unified description for singular links, singular Legendrian links, singular transverse links, and singular braids. We also classify the complete set…

Geometric Topology · Mathematics 2021-01-11 Byung Hee An , Hwa Jeong Lee

A knot (or link) diagram is said to be everywhere equivalent if all the diagrams obtained by switching one crossing represent the same knot (or link). We classify such diagrams of a closed 3-braid.

Geometric Topology · Mathematics 2014-11-18 Alexander Stoimenow

We show that for every m in N, there exists an n in N such that every embedding of the complete graph K_n in R^3 contains a link of two components whose linking number is at least m. Furthermore, there exists an r in N such that every…

Geometric Topology · Mathematics 2014-10-01 Erica Flapan

We say that a link $L_1$ is an s-major of a link $L_2$ if any diagram of $L_1$ can be transformed into a diagram of $L_2$ by changing some crossings and smoothing some crossings. This relation is a partial ordering on the set of all prime…

Geometric Topology · Mathematics 2008-06-24 Toshiki Endo , Tomoko Itoh , Kouki Taniyama

We classify all the maximal linklessly embeddable graphs of order 12 and show that their complements are all intrinsically knotted. We derive results about the connected domination numbers of a graph and its complement. We provide an answer…

Combinatorics · Mathematics 2024-07-15 Gregory Li , Andrei Pavelescu , Elena Pavelescu

A convex combination mapping of a planar graph is a plane mapping in which the external vertices are mapped to the corners of a convex polygon and every internal vertex is a proper weighted average of its neighbours. If a planar graph is…

Computational Geometry · Computer Science 2007-08-08 Colm O Dunlaing

This is a short note describing what I believe is a serious gap in Stanfield's proof of Sachs' conjecture that every linklessly embeddable graph has a linear linkless embedding in $\mathbb{R}^3$.

Geometric Topology · Mathematics 2026-03-12 Ramin Naimi

In this paper, we show that two flat fully augmented links with homeomorphic complements must be equivalent as links in $\mathbb{S}^{3}$. This requires a careful analysis of how totally geodesic surfaces and cusps intersect in these link…

Geometric Topology · Mathematics 2025-11-26 Christian Millichap , Rolland Trapp

This is the third paper in a series devoted to enumerating the prime alternating knots and links. This paper establishes a method for enumerating the prime alternating links. It is shown that one may choose any prime alternating link…

Geometric Topology · Mathematics 2007-05-23 Stuart Rankin , Ortho Smith

This paper is a short introduction to the theory of tangles, both in graphs and general connectivity systems. An emphasis is put on the correspondence between tangles of order k and k-connected components. In particular, we prove that there…

Discrete Mathematics · Computer Science 2016-02-16 Martin Grohe

We construct a link in the $3$-space that is not isotopic to any PL link (non-ambiently). In fact, there exist uncountably many $I$-equivalence classes of links. The paper also includes some observations on Cochran's invariants $\beta_i$.

Geometric Topology · Mathematics 2020-11-04 Sergey A. Melikhov

Cut-diagrams are diagrammatic objects, defined in dimensions 1 and 2, that generalize links in 3-space and surface-links in 4-space; in dimension 1, this coincides with the theory of welded links. Using cut-diagrams, we introduce an…

Geometric Topology · Mathematics 2026-03-30 Benjamin Audoux , Jean-Baptiste Meilhan , Akira Yasuhara

We present a table of symmetric diagrams for strongly invertible knots up to 10 crossings, point out the similarity of transvergent diagrams for strongly invertible knots with symmetric union diagrams and discuss open questions.

Geometric Topology · Mathematics 2025-04-16 Christoph Lamm

A link $L$ in $S^3$ is called a symmetric link if it is preserved by a $\pi$ rotation around a closed geodesic in $S^3$. Any symmetric link can be depicted by a diagram with a symmetry axis lying on the plane of the diagram, called a…

Geometric Topology · Mathematics 2026-05-07 Ryoga Furutani

We introduce a new method for computing triply graded link homology, which is particularly well-adapted to torus links. Our main application is to the (n,n)-torus links, for which we give an exact answer for all n. In several cases, our…

Geometric Topology · Mathematics 2019-02-20 Ben Elias , Matthew Hogancamp

Similar to knots in S^3, any knot in a lens space has a grid diagram from which one can combinatorially compute all of its knot Floer homology invariants. We give an explicit description of the generators, differentials, and rational Maslov…

Geometric Topology · Mathematics 2008-08-05 Kenneth L. Baker , J. Elisenda Grigsby , Matthew Hedden

There is a well-known way to describe a link diagram as a (signed) plane graph, called its Tait graph. This concept was recently extended, providing a way to associate a set of embedded graphs (or ribbon graphs) to a link diagram. While…

Combinatorics · Mathematics 2014-10-01 Iain Moffatt

We classify the planar cubic Cayley graphs of connectivity 2, providing an explicit presentation and embedding for each of them. Combined with [9] this yields a complete description of all planar cubic Cayley graphs.

Group Theory · Mathematics 2015-03-18 Agelos Georgakopoulos

This article gives a foundational account of various characterizations of framed links in the $3$-sphere.

Geometric Topology · Mathematics 2020-05-26 Mohamed Elhamdadi , Mustafa Hajij , Kyle Istvan

Given an $m$-component link $L$ in $S^3$ ($m \ge 2$), we construct a family of links which are link homotopic, but not link isotopic, to $L$. Every proper sublink of such a link is link isotopic to the corresponding sublink of $L$.…

Geometric Topology · Mathematics 2017-03-30 Bakul Sathaye