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Related papers: Towards a Classification of Knots

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We discuss the polynomial representation for long knots and elaborate on how to obtain them with a bound on degrees of the defining polynomials, for any knot-type.

Geometric Topology · Mathematics 2008-03-24 Rama Mishra , M. Prabhakar

Automatically determining knot number and positions is a fundamental and challenging problem in B-spline approximation. In this paper, the knot placement is abstracted as a mapping from initial knots to the optimal knots. We innovatively…

Optimization and Control · Mathematics 2024-03-19 Jiaqi Luo , Zepeng Wen , Hongmei Kang , Zhouwang Yang

While many classes of cutting-planes are at the disposal of integer programming solvers, our scientific understanding is far from complete with regards to cutting-plane selection, i.e., the task of selecting a portfolio of cutting-planes to…

Optimization and Control · Mathematics 2018-05-09 Santanu S. Dey , Marco Molinaro

Knots are deeply entangled with every branch of science. One of the biggest open challenges in knot theory is to formalise a knot invariant that can unambiguously and efficiently distinguish any two knotted curves. Additionally, the…

We look into computational aspects of two classical knot invariants. We look for ways of simplifying the computation of the coloring invariant and of the Alexander module. We support our ideas with explicit computations on pretzel knots.

Geometric Topology · Mathematics 2007-05-23 Pedro Lopes

We give a simple example showing that a knot or link diagram that lies in the ${\mathbb{Z}}^2$ lattice is not necessarily the projection of a lattice stick knot or link in the ${\mathbb{Z}}^3$ lattice, and we give a necessary and sufficient…

Geometric Topology · Mathematics 2018-03-13 Margaret Allardice , Ethan D. Bloch

We classify all knot diagrams of genus two and three, and give applications to positive, alternating and homogeneous knots, including a classification of achiral genus 2 alternating knots, slice or achiral 2-almost positive knots, a proof…

Geometric Topology · Mathematics 2008-08-30 A. Stoimenow

The study of a certain class of matrix integrals can be motivated by their interpretation as counting objects of knot theory such as alternating prime links, tangles or knots. The simplest such model is studied in detail and allows to…

Mathematical Physics · Physics 2009-09-25 P. Zinn-Justin

The most tight conformations of prime knots are found with the use of the SONO algorithm. Their curvature and torsion profiles are calculated. Symmetry of the knots is analysed. Connections with the physics of polymers are discussed.

Computational Physics · Physics 2009-11-07 P. Pieranski , S. Przybyl , A. Stasiak

A construction of polytopes is given based on integers. These geometries are constructed through a mapping to pure numbers and have multiple applications, including statistical mechanics and computer science. The number form is useful in…

General Physics · Physics 2007-05-23 Gordon Chalmers

This paper explores the interactions between knot theory and quantum computing. On one side, knot theory has been used to create models of quantum computing, and on the other, it is a source of computational problems. Knot theory is often…

Geometric Topology · Mathematics 2019-01-11 Robin Gaudreau , David Ledvinka

Hyperfinite knots, or limits of equivalence classes of knots induced by a knot invariant taking values in a metric space, were introduced in a previous article by the author. In this article, we present new examples of hyperfinite knots…

Geometric Topology · Mathematics 2009-11-13 Pedro Lopes

Piecewise-linear virtual knots are discussed and classified up to edge index six.

Geometric Topology · Mathematics 2009-07-14 Neil R. Nicholson

Although most knots are nonalternating, modern research in knot theory seems to focus on alternating knots. We consider here nonalternating knots and their properties. Specifically, we show certain classes of knots have nontrivial Jones…

Geometric Topology · Mathematics 2009-07-13 Neil R. Nicholson

This paper employs various computational techniques to determine the bridge numbers of both classical and virtual knots. For classical knots, there is no ambiguity of what the bridge number means. For virtual knots, there are multiple…

Geometric Topology · Mathematics 2024-05-10 Hanh Vo , Puttipong Pongtanapaisan , Thieu Nguyen

This thesis develops some general calculational techniques for finding the orders of knots in the topological concordance group C. The techniques currently available in the literature are either too theoretical, applying to only a small…

Geometric Topology · Mathematics 2012-06-05 Julia Collins

We compose the table of knots in the thickened torus T x I having diagrams with at most 4 crossings. The knots are constructed by the three-step process. First we list regular graphs of degree 4 with at most 4 vertices, then for each graph…

Geometric Topology · Mathematics 2012-07-02 A. A. Akimova , S. V. Matveev

An implementation of BFACF-style algorithms on knotted polygons in the simple cubic, face centered cubic and body centered cubic lattice is used to estimate the statistics and writhe of minimal length knotted polygons in each of the…

Statistical Mechanics · Physics 2015-05-28 E. J. Janse van Rensburg , A. Rechnitzer

We consider countable linear orders and study the quasi-order of convex embeddability and its induced equivalence relation. We obtain both combinatorial and descriptive set-theoretic results, and further extend our research to the case of…

Logic · Mathematics 2025-05-06 Martina Iannella , Alberto Marcone , Luca Motto Ros , Vadim Weinstein

These notes are based on the lectures given by the author during Winter Braids IX in Reims in March 2019. We discuss slice knots and why they are interesting, as well as some ways to decide if a given knot is or is not slice. We describe…

Geometric Topology · Mathematics 2022-01-24 Brendan Owens