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Optical links and knots have attracted growing attention owing to their exotic topologic features and promising applications in next-generation information transfer and storage. However, current protocols for optical topology realization…

We consider the space of all smooth knots in the 3-sphere isotopic to a given knot, with the aim of finding a small subspace onto which this large space deformation retracts. For torus knots and many hyperbolic knots we show the subspace…

Geometric Topology · Mathematics 2007-05-23 Allen Hatcher

We recursively determine the homotopy type of the space of any irreducible framed link in the 3-sphere, modulo rotations. This leads us to the homotopy type of the space of any knot in the solid torus, thus answering a question posed by…

Geometric Topology · Mathematics 2021-06-08 Andrew Havens , Robin Koytcheff

An operad structure on certain bicoloured noncrossing configurations in regular polygons is studied. Motivated by this study, a general functorial construction of enveloping operad, with input a coloured operad and output an operad, is…

Combinatorics · Mathematics 2014-10-14 Frédéric Chapoton , Samuele Giraudo

We determine p-colorability of the paradromic rings. These rings arise by generalizing the well-known experiment of bisecting a Mobius strip. Instead of joining the ends with a single half twist, use $m$ twists, and, rather than bisecting…

Geometric Topology · Mathematics 2019-01-07 James Godzik , Nancy Ho , Jennifer Jones , Thomas W. Mattman , Dan Sours

The existence of topologically slice knots that are of infinite order in the knot concordance group followed from Freedman's work on topological surgery and Donaldson's gauge theoretic approach to 4-manifolds. Here, as an application of…

Geometric Topology · Mathematics 2016-09-15 Matthew Hedden , Se-Goo Kim , Charles Livingston

We construct meta-stable knotted domain strings on the surface of a soliton of the shape of a torus in 3+1 dimensions. We consider the simplest case of Z2 Wess-Zumino-type domain walls for which we can cover the torus with a domain string…

High Energy Physics - Theory · Physics 2013-11-12 Minoru Eto , Sven Bjarke Gudnason

What is the meaning of entanglement in a theory of extended objects such as strings? To address this question we consider the spatial entanglement between two intervals in the Gross-Taylor model, the string theory dual to two-dimensional…

High Energy Physics - Theory · Physics 2017-10-25 William Donnelly , Gabriel Wong

We study cobordisms of a class of topological operads called ``manifold operads''. These operads are generalizations of the Fulton-MacPherson operad: an operad built from configurations of points in Euclidean space. Cobordism of manifold…

Algebraic Topology · Mathematics 2026-05-14 Xujia Chen , Connor Malin , Paolo Salvatore

Binary representations of the trefoil and other knots of up to ten crossings in the simple cubic lattice were created. The BiEntropy of each knot was computed using a variety of binary encodings and compared against controls. This showed…

General Mathematics · Mathematics 2018-02-13 Grenville J. Croll

A {\it stuck knot} is a knot diagram containing designated crossings, called {\it stuck crossings}, whose incident strands are required to remain locally non-separable. These rigidity constraints restrict the allowable ambient isotopies and…

Geometric Topology · Mathematics 2026-02-23 Ioannis Diamantis

By using double branched covers, we prove that there is a 1-1 correspondence between the set of knotoids in the 2-sphere, up to orientation reversion and rotation, and knots with a strong inversion, up to conjugacy. This correspondence…

Geometric Topology · Mathematics 2019-09-26 Agnese Barbensi , Dorothy Buck , Heather A. Harrington , Marc Lackenby

We introduce "book links" as a generalization of braids in open book decompositions; this new class of objects includes both braids and plats as special cases. We then prove a version of Markov's theorem in this general setting by extending…

Geometric Topology · Mathematics 2024-11-18 Roman Aranda , Fraser Binns , Margaret Doig

The primary objects of study in the ``knot theory of complex plane curves'' are C-links: links (or knots) cut out of a 3-sphere in the complex plane by complex plane transverse and totally tangential. Transverse C-links are naturally…

Geometric Topology · Mathematics 2007-05-23 Lee Rudolph

We take a close look at a classical magic trick performed with a string, where a trivial knot is seemingly isotoped into a trefoil, and generalize it to a family of magic tricks for transforming the unknot into other knots. We encode such a…

Geometric Topology · Mathematics 2026-04-16 Raphael Appenzeller , José Pedro Quintanilha

We characterize cutting arcs on fiber surfaces that produce new fiber surfaces, and the changes in monodromy resulting from such cuts. As a corollary, we characterize band surgeries between fibered links and introduce an operation called…

Geometric Topology · Mathematics 2017-05-17 Dorothy Buck , Kai Ishihara , Matt Rathbun , Koya Shimokawa

We will discuss a method for visual presentation of knotted surfaces in the four space, by examining a number and a position of its Morse's critical points. Using this method, we will investigate surface-knot with one critical point of…

Geometric Topology · Mathematics 2017-05-30 Michal Jablonowski

We find further evidence for the conjecture relating large N Chern-Simons theory on S^3 with topological string on the resolved conifold geometry by showing that the Wilson loop observable of a simple knot on S^3 (for any representation)…

High Energy Physics - Theory · Physics 2009-09-17 Hirosi Ooguri , Cumrun Vafa

We determine the rational homology of the space of long knots in R^d for $d\geq4$. Our main result is that the Vassiliev spectral sequence computing this rational homology collapses at the E^1 page. As a corollary we get that the homology…

Algebraic Topology · Mathematics 2014-11-11 Pascal Lambrechts , Victor Tourtchine , Ismar Volic

We provide a way to produce knots in $S^3$ from signed chord diagrams, and prove that every knot can be produced in this way. Using these diagrams, we generalize the fundamental theorem of finite type invariants. We also provide moves for…

Geometric Topology · Mathematics 2018-07-02 Cole Hugelmeyer
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