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We prove that any knot or link in any 3-manifold can be nicely decomposed (splitted) by a filling Dehn sphere. This has interesting consequences in the study of branched coverings over knots and links. We give an algorithm for computing…

Geometric Topology · Mathematics 2015-09-04 Álvaro Lozano Rojo , Rubén Vigara Benito

Milnor's $\bar{\mu}$-invariants of links in the $3$-sphere $S^3$ vanish on any link concordant to a boundary link. In particular, they are trivial on any knot in $S^3$. Here we consider knots in thickened surfaces $\Sigma \times [0,1]$,…

Geometric Topology · Mathematics 2022-11-02 Micah Chrisman

Updated rerefences and introduction. Given a knot in an integer homology sphere, one can construct a family of closed 3-manifolds (parametrized by the positive integers), namely the cyclic branched coverings of the knot. In this paper we…

Geometric Topology · Mathematics 2007-05-23 Stavros Garoufalidis , Andrew Kricker

This paper continues the study of finite-type invariants of homology spheres studied by Ohtsuki and Garoufalidis. We apply the surgery classification of links to give a diagrammatic description, using ideas of Ohtsuki. This uses a…

q-alg · Mathematics 2008-02-03 Stavros Garoufalidis , Jerome Levine

We establish some inequalities about the Khovanov-Rozansky cohomologies of braids. These give new upper bounds of the self-linking numbers of transversal links in standard contact $S^3$ which is sharper than the well known bound given by…

Geometric Topology · Mathematics 2007-05-23 Hao Wu

It is well known that any three-manifold can be obtained by surgery on a framed link in $S^3$. Lickorish gave an elementary proof for the existence of the three-manifold invariants of Witten using a framed link description of the manifold…

High Energy Physics - Theory · Physics 2009-10-31 P. Ramadevi , Swatee Naik

We give a rational surgery formula for the Casson-Walker invariant of a 2-component link in $S^{3}$ which is a generalization of Matveev-Polyak's formula. As application, we give more examples of non-hyperbolic L-space $M$ such that knots…

Geometric Topology · Mathematics 2023-03-13 Tetsuya Ito

We introduce the notion of adjacency in three-manifolds. A three-manifold $Y$ is $n$-adjacent to another three-manifold $Z$ if there exists an $n$-component link in $Y$ and surgery slopes for that link such that performing Dehn surgery…

Geometric Topology · Mathematics 2026-01-14 Tye Lidman , Allison H. Moore

In this article, we study the knots realized by periodic orbits of R-covered Anosov flows in compact 3-manifolds. We show that if two orbits are freely homotopic then in fact they are isotopic. We show that lifts of periodic orbits to the…

Dynamical Systems · Mathematics 2015-06-23 Thomas Barthelmé , Sergio R. Fenley

Relative self-linking and linking "numbers" for pairs of knots in oriented 3-manifolds are defined in terms of intersection invariants of immersed surfaces in 4-manifolds. The resulting concordance invariants generalize the usual…

Geometric Topology · Mathematics 2014-10-01 Rob Schneiderman

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 prove a homological stability theorem for unlinked circles in $3$-manifolds and give an application to certain groups of diffeomorphisms of 3-manifolds.

Algebraic Topology · Mathematics 2017-03-23 Alexander Kupers

We define an invariant of transverse links in the standard contact 3-sphere as a distinguished element of the Khovanov homology of the link. The quantum grading of this invariant is the self-linking number of the link. For knots, this gives…

Geometric Topology · Mathematics 2007-05-23 Olga Plamenevskaya

We prove that for any knot $K$, there exists a one-vertex triangulation of the $3$-sphere containing an edge forming $K$. The proof is constructive, and based on fully augmented links. We use our method to produce ``complicated'' simplicial…

Geometric Topology · Mathematics 2024-12-02 Dionne Ibarra , Daniel V. Mathews , Jessica S. Purcell , Jonathan Spreer

This is a PhD thesis about low dimensional topology, in particular knot thory in 3-manifolds also different from the 3-sphere, topological applications of quantum invariants, and Turaev's shadows. There is an introduction and a survey for…

Geometric Topology · Mathematics 2016-10-18 Alessio Carrega

We work on the notions of rail arcs and rail isotopy in $\mathbb{R}^3$, and we introduce the notions of rail knotoid diagrams and their equivalence. Our main result is that two rail arcs in $\mathbb{R}^3$ are rail isotopic if and only if…

Geometric Topology · Mathematics 2019-03-26 Dimitrios Kodokostas , Sofia Lambropoulou

We introduce new polynomial isotopy invariants for closed braids. They are constructed as polynomial valued {\em Gauss diagram 1-cocycles} evaluated on the full rotation of the closed braid $\hat \beta$ around the core of the corresponding…

Geometric Topology · Mathematics 2018-04-11 Thomas Fiedler

This paper is an introduction to the subject of virtual knot theory, combined with a discussion of some specific new theorems about virtual knots. The new results are as follows: We prove, using a 3-dimensional topology approach that if a…

Geometric Topology · Mathematics 2007-05-23 Louis Kauffman , Vassily Olegovich Manturov

These notes were prepared to supplement the talk that I gave on Feb 19, 2004, at the First East Asian School of Knots and Related Topics, Seoul, South Korea. In this article I review aspects of the interconnections between braids, knots and…

Geometric Topology · Mathematics 2007-05-23 Joan S. Birman

In this paper, we discuss a proof of the isotopy invariance of a parametrized Khovanov link homology including categorifications of the Jones polynomial and the Kauffman bracket polynomial though it is a known fact. In order to present a…

Geometric Topology · Mathematics 2020-04-09 Noboru Ito
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