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Related papers: Pseudo links in handlebodies

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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

Pseudo links have two crossing types: classical crossings and indeterminate crossings. They were first introduced by Ryo Hanaki as a possible tool for analyzing images produced by electron microscopy of DNA. A normalized bracket polynomial…

Geometric Topology · Mathematics 2015-12-16 Heather A. Dye

A pseudodiagram is a diagram of a knot with some crossing information missing. We review and expand the theory of pseudodiagrams introduced by R. Hanaki. We then extend this theory to the realm of virtual knots, a generalization of knots.…

Geometric Topology · Mathematics 2011-09-20 Allison Henrich , Noel MacNaughton , Sneha Narayan , Oliver Pechenik , Jennifer Townsend

In this paper we study the theory of knotoids and braidoids and the theory of pseudo knotoids and pseudo braidoids on the torus T. In particular, we introduce the notion of {\it mixed knotoids} in $S^2$, that generalize the notion of mixed…

Geometric Topology · Mathematics 2021-03-31 Ioannis Diamantis

Pseudodiagrams are knot or link diagrams where some of the crossing information is missing. Pseudoknots are equivalence classes of pseudodiagrams, where equivalence is generated by a natural set of Reidemeister moves. In this paper, we…

Geometric Topology · Mathematics 2013-11-15 Francois Dorais , Allison Henrich , Slavik Jablan , Inga Johnson

Classical knots in $\mathbb{R}^3$ can be represented by diagrams in the plane. These diagrams are formed by curves with a finite number of transverse crossings, where each crossing is decorated to indicate which strand of the knot passes…

Geometric Topology · Mathematics 2013-09-30 Allison Henrich , Rebecca Hoberg , Slavik Jablan , Lee Johnson , Elizabeth Minten , Ljiljana Radovic

Pseudodiagrams are diagrams of knots where some information about which strand goes over/under at certain crossings may be missing. Pseudoknots are equivalence classes of pseudodiagrams, with equivalence defined by a class of…

Geometric Topology · Mathematics 2013-05-29 Allison Henrich , Slavik Jablan

Given a knot or link in the handlebody, $H_g$, of genus $g$ we prove that it can always be represented as the plat closure of a braid in $H_g$. We further establish the Hilden braid group for the handlebody, as a subgroup of the mixed braid…

Geometric Topology · Mathematics 2023-12-19 Paolo Cavicchioli , Sofia Lambropoulou

We consider oriented knots and links in a handlebody of genus $g$ through appropriate braid representatives in $S^3$, which are elements of the braid groups $B_{g,n}$. We prove a geometric version of the Markov theorem for braid equivalence…

Geometric Topology · Mathematics 2007-05-23 Reinhard Haering-Oldenburg , Sofia Lambropoulou

A handlebody link is a union of handlebodies of positive genus embedded in 3-space, which generalizes the notion of links in classical knot theory. In this paper, we consider handlebody links with one genus 2 handlebody and $n-1$ solid…

Geometric Topology · Mathematics 2020-03-24 Giovanni Bellettini , Giovanni Paolini , Maurizio Paolini , Yi-Sheng Wang

Pseudo links generalize classical links by allowing crossings with missing over/under information, called pre-crossings. While the pseudo braid framework provides an algebraic description of pseudo links via a Markov-type theorem, the…

Geometric Topology · Mathematics 2026-05-05 Ioannis Diamantis

We consider the folding of a self-avoiding homopolymer on a lattice, with saturating hydrogen bond interactions. Our goal is to numerically evaluate the statistical distribution of the topological genus of pseudoknotted configurations. The…

Biomolecules · Quantitative Biology 2009-11-11 G. Vernizzi , P. Ribeca , H. Orland , A. Zee

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

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

A handlebody-link is a disjoint union of embeddings of handlebodies in $S^3$ and an HL-homotopy is an equivalence relation on handlebody-links generated by self-crossing changes. The second author and Ryo Nikkuni classified the set of…

Geometric Topology · Mathematics 2016-08-23 Yuka Kotorii , Atsuhiko Mizusawa

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

T-positive links form a subset of strongly quasipositive links that strictly contains the set of all non-split braid positive links. Analogous to Baader's characterisation of positive links as precisely the strongly quasipositive and…

Geometric Topology · Mathematics 2026-05-12 Benjamin Bode , Paula Truöl

The presence of slipknots in configurations of proteins and DNA has been shown to affect their functionality, or alter it entirely. Historically, polymers are modeled as polygonal chains in space. As an alternative to space curves, we…

Geometric Topology · Mathematics 2018-03-21 Harrison Chapman

After a discussion of the definition and number of pseudoknots, we reconsider the self-attracting homopolymer paying particular attention to the scaling of the number of pseudoknots at different temperature regimes in two and three…

Statistical Mechanics · Physics 2009-11-10 A. Kabakcioglu , A. L. Stella
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