English
Related papers

Related papers: Twisting Some Classes of Links

200 papers

Twisted links are a generalization of classical links and correspond to stably equivalence classes of links in thickened surfaces. In this paper we introduce twisted intersection colorings of a diagram and construct two invariants of a…

Geometric Topology · Mathematics 2022-07-25 Hiroki Ito , Seiichi Kamada

A virtual link is a generalization of a classical link that is defined as an equivalence class of certain diagrams, called virtual link diagrams. It is further generalized to a twisted link. Twisted links are in one-to-one correspondence…

Geometric Topology · Mathematics 2019-09-24 Naoko Kamada , Seiichi Kamada

We introduce stable equivalence classes of oriented links in orientable three-manifolds that are orientation $I$-bundles over closed but not necessarily orientable surfaces. We call these twisted links, and show that they subsume the…

Geometric Topology · Mathematics 2014-10-01 Mario O. Bourgoin

Quasi-alternating links are homologically thin for both Khovanov homology and knot Floer homology. We show that every quasi-alternating link gives rise to an infinite family of quasi-alternating links obtained by replacing a crossing with…

Geometric Topology · Mathematics 2009-04-22 Abhijit Champanerkar , Ilya Kofman

In the search for transverse-universal knots in the standard contact structure on $\mathbb{S}^3$, we present a classification of the transverse twist knots with maximal self-linking number, that admit only overtwisted contact branched…

Geometric Topology · Mathematics 2026-01-21 Sebastian Zapata

A twisted ring is a ring endowed with a family of endomorphisms satisfying certain relations. One may then consider the notions of twisted module and twisted differential module. We study them and show that, under some general hypothesis,…

Algebraic Geometry · Mathematics 2015-03-18 Bernard Le Stum , Adolfo Quirós

A triangle presentation is a combinatorial datum that encodes the action of a group on a $2$-dimensional triangle complex with prescribed links, which is simply transitive on the vertices. We provide the first infinite family of triangle…

Group Theory · Mathematics 2024-08-29 Alex Loué

A twisted torus link $T(p,q,r,s)$ is obtained by performing $s$ full twists on $r$ adjacent strands of the $(p,q)$-torus link. In this paper, we classify twisted torus links that are unlinks. We give a complete characterization of all…

Geometric Topology · Mathematics 2026-02-05 Hong Chang , Thiago de Paiva , Qing Lan

We discuss twisted cohomology, not just for ordinary cohomology but also for $K$-theory and other exceptional cohomology theories, and discuss several of the applications of these in mathematical physics. Our list of applications is by no…

Algebraic Topology · Mathematics 2024-01-09 Jonathan Rosenberg

We construct an infinite family of quasi-alternating links from a given quasi-alternating link by replacing a crossing by a product of rational tangles each of which extends that crossing. Consequently, we determine an infinite family of…

Geometric Topology · Mathematics 2012-05-22 Khaled Qazaqzeh , Nafaa Chbili , Balkees Qublan

Twisted complex $K$-theory can be defined for a space $X$ equipped with a bundle of complex projective spaces, or, equivalently, with a bundle of C$^*$-algebras. Up to equivalence, the twisting corresponds to an element of $H^3(X;\Z)$. We…

K-Theory and Homology · Mathematics 2007-05-23 Michael Atiyah , Graeme Segal

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

A large (infinitely-dimensional) class of completely integrable (possibly non-autonomous) spin chains is discovered associated to an infinite-dimensional Lie Algebra of infinite rank. The complete set of integrals of motion is constructed…

solv-int · Physics 2009-10-30 Tomaz Prosen

New presentations of a link and a virtual link are introduced and algebraic systems on links and virtual links are constructed respectively. Based on the algebraic systems, Reduction Crossing Algorithms for them are proposed which are used…

Geometric Topology · Mathematics 2016-11-01 Liangxia Wan

We use techniques of Freedman and Teichner to prove that, under certain circumstances, the multi-infection of a slice link is again slice (not necessarily smoothly slice). We provide a general context for proving links are slice that…

Geometric Topology · Mathematics 2009-06-10 Tim D. Cochran , Stefan Friedl , Peter Teichner

Linkage methods are among the most popular algorithms for hierarchical clustering. Despite their relevance the current knowledge regarding the quality of the clustering produced by these methods is limited. Here, we improve the currently…

Machine Learning · Computer Science 2024-05-03 Sanjoy Dasgupta , Eduardo Laber

By twisting a given link $L$ along an unknotted circle $c$, we obtain an infinite family of links $\{ L_n \}$. We introduce the ``stable unknotting number'' which describes the asymptotic behavior of unknotting numbers of links in the twist…

Geometric Topology · Mathematics 2025-04-08 Kenneth L. Baker , Yasuyuki Miyazawa , Kimihiko Motegi

We use an action, of 2l-component string links on l-component string links, defined by the first author and Xiao-Song Lin, to lift the indeterminacy of finite type link invariants. The set of links up to this new indeterminacy is in…

Geometric Topology · Mathematics 2010-02-09 Nathan Habegger , Jean-Baptiste Meilhan

Twisted permutation codes, introduced recently by the second and third authors, are frequency permutation arrays. They are similar to repetition permutation codes, in that they are obtained by a repetition construction applied to a smaller…

Combinatorics · Mathematics 2015-11-24 Marzieh Akbari , Neil I. Gillespie , Cheryl E. Praeger

A virtual link can be understood as a link in a trivial I-bundle over an orientable compact surface with genus. A twisted virtual link is a link in a trivial I-bundle over a not-necessarily orientable compact surface. A twisted virtual…

Geometric Topology · Mathematics 2012-12-03 Jessica Ceniceros , Sam Nelson
‹ Prev 1 2 3 10 Next ›