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Related papers: Knotoids, pseudo knotoids, Braidoids and pseudo br…

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In this paper we study the theory of {\it pseudo knots}, which are knots with some missing crossing information, and we introduce and study the theory of {\it pseudo tied links} and the theory of {\it pseudo knotoids}. In particular, we…

Geometric Topology · Mathematics 2020-11-30 Ioannis Diamantis

In this paper we introduce and study the theories of pseudo links and singular links in the Solid Torus, ST. Pseudo links are links with some missing crossing information that naturally generalize the notion of knot diagrams, and that have…

Geometric Topology · Mathematics 2023-06-22 Ioannis Diamantis

In this paper we study the theory of multi-knotoids in the annulus and in the torus, building up from the theory of planar knotoids to the theory of toroidal knotoids through the theory of annular knotoids. We introduce the concept of…

Geometric Topology · Mathematics 2026-04-09 Ioannis Diamantis , Sofia Lambropoulou , Sonia Mahmoudi

The classical Thistlethwaite theorem for links can be phrased as asserting that the Kauffman bracket of a link can be obtained from an evaluation of the Bollob\'as-Riordan polynomial of a ribbon graph associated to one of the link's…

Geometric Topology · Mathematics 2024-12-18 Sergei Chmutov , Qingying Deng , Joanna A. Ellis-Monaghan , Sergei Lando , Wout Moltmaker

The mock Alexander polynomial is an extension of the classical Alexander polynomial, defined and studied for (virtual) knots and knotoids by the second and third authors. In this paper we consider the mock Alexander polynomial for…

Geometric Topology · Mathematics 2024-06-13 Joanna A. Ellis-Monaghan , Neslihan Gügümcü , Louis H. Kauffman , Wout Moltmaker

Braidoids generalize the classical braids and form a counterpart theory to the theory of planar knotoids, just as the theory of braids does for the theory of knots. In this paper, we introduce basic notions of braidoids, a closure operation…

Geometric Topology · Mathematics 2021-03-01 Neslihan Gügümcü , Sofia Lambropoulou

In this paper, we generalize the \textit{Clock Theorem} of Formal Knot Theory to knotoids in $S^2$. The clock theorem implies that clock states of a knotoid diagram form a lattice under transpositions. These states form the basis of many…

Geometric Topology · Mathematics 2025-09-29 Neslihan Gügümcü , Louis H. Kauffman

In this paper we introduce and study the theory of pseudo links in the genus $g$ handlebody, $H_g$. Pseudo links are links with some missing crossing information that naturally generalize the notion of knot diagrams. The motivation for…

Geometric Topology · Mathematics 2021-10-12 Ioannis Diamantis

We present a complete classification of spherical knotoids with up to six crossings and conjecture that our classification up to seven crossings is complete. Our work extends the tradition of knot tabulation to the setting of knotoids…

Geometric Topology · Mathematics 2026-03-09 Boštjan Gabrovšek , Paolo Cavicchioli

In this paper, we extend the theory of planar pseudo knots to the theories of annular and toroidal pseudo knots. Pseudo knots are defined as equivalence classes under Reidemeister-like moves of knot diagrams characterized by crossings with…

Geometric Topology · Mathematics 2024-09-09 Ioannis Diamantis , Sofia Lambropoulou , Sonia Mahmoudi

The concepts of twisted knot theory and singular knot theory inspire the introduction of singular twisted knot theory. This study showcases similar findings for singular twisted links, including the Alexander theorem and the Markov theorem…

Geometric Topology · Mathematics 2024-03-27 Komal Negi , Madeti Prabhakar

Pseudo links are equivalence classes under Reidemeister-type moves of link diagrams containing crossings with undefined over and under information. In this paper, we extend the Kauffman bracket and Jones-type polynomials from planar pseudo…

Geometric Topology · Mathematics 2025-08-20 Ioannis Diamantis , Sofia Lambropoulou , Sonia Mahmoudi

In this paper we first give a one-move version of Markov's braid theorem for knot isotopy in $S^3$ that sharpens the classical theorem. Then a relative version of Markov's theorem concerning a fixed braided portion in the knot. We also…

Geometric Topology · Mathematics 2007-05-23 Sofia Lambropoulou , Colin P. Rourke

In this paper, we extend the definition of a knotoid that was introduced by Turaev, to multi-linkoids that consist of a number of knot and knotoid components. We study invariants of multi-linkoids that lie in a closed orientable surface,…

Geometric Topology · Mathematics 2022-05-27 Boštjan Gabrovšek , Neslihan Gügümcü

This paper is a survey on the theory of knotoids and braidoids. Knotoids are open ended knot diagrams in surfaces and braidoids are geometric objects analogous to classical braids, forming a counterpart theory to the theory of knotoids in…

Geometric Topology · Mathematics 2019-03-06 Neslihan Gügümcü , Louis H. Kauffman , Sofia Lambropoulou

We introduce and study knotoids. Knotoids are represented by diagrams in a surface which differ from the usual knot diagrams in that the underlying curve is a segment rather than a circle. Knotoid diagrams are considered up to Reidemeister…

Geometric Topology · Mathematics 2011-04-14 Vladimir Turaev

An extension of the Artin Braid Group with new operators that generate double and triple intersections is considered. The extended Alexander theorem, relating intersecting closed braids and intersecting knots is proved for double and triple…

High Energy Physics - Theory · Physics 2009-09-01 Daniel Armand-Ugon , Rodolfo Gambini , Pablo Mora

Tied links and the tied braid monoid were introduced recently by the authors and used to define new invariants for classical links. Here, we give a version purely algebraic-combinatoric of tied links. With this new version we prove that the…

Geometric Topology · Mathematics 2021-01-28 Francesca Aicardi , Jesus Juyumaya

We consider a diagrammatic approach to investigate tame knots and links in three dimensional torus $T^3$. We obtain a finite set of generalised Reidemeister moves for equivalent links up to ambient isotopy. We give a presentation for…

Algebraic Topology · Mathematics 2023-07-11 Bao Vuong

The Alexander polynomials \Delta_{n,3}(t) and \Delta_{n,4}(t) are presented as a sum of the Alexander polynomials \Delta_{k,2}(t). These polynomials are also expressed in the form of a sum of Chebyshev polynomials of the second kind. These…

Geometric Topology · Mathematics 2015-10-15 A. M. Pavlyuk
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