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Related papers: Transverse-Legendrian links

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In this paper, we present a complete coarse classification of non-loose Legendrian and transverse torus knots in any contact structure on $S^1\times S^2$.

Geometric Topology · Mathematics 2025-12-29 Jiaxin Huang , Youlin Li , Zaiting Xu

We give a combinatorial treatment of transverse homology, a new invariant of transverse knots that is an extension of knot contact homology. The theory comes in several flavors, including one that is an invariant of topological knots and…

Symplectic Geometry · Mathematics 2013-05-08 Lenhard Ng

We classify topologically trivial Legendrian $\Theta$-graphs and identify the complete family of nondestabilizeable Legendrian realizations in this topological class. In contrast to all known results for Legendrian knots, this is an…

Geometric Topology · Mathematics 2016-06-03 Peter Lambert-Cole , Danielle O'Donnol

In this paper, the support genus of all Legendrian right handed trefoil knots and some other Legendrian knots is computed. We give examples of Legendrian knots in the three-sphere with the standard contact structure which have positive…

Geometric Topology · Mathematics 2011-01-28 Youlin Li , Jiajun Wang

We derive a relative version of the slicing Bennequin inequalities for cobordant Legendrian knots, and review a few proofs of the result.

Symplectic Geometry · Mathematics 2011-09-12 Georgi D. Gospodinov

By examining knot Floer homology, we extend a result of Ozsv\'ath and Stipsicz and show further infinitely many Legendrian and transversely non-simple knot types among two-bridge knots. We give sufficient conditions of Legendrian and…

Symplectic Geometry · Mathematics 2020-04-03 Viktória Földvári

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

Take a sequence of contactomorphisms of a contact three-manifold that $C^0$-converges to a homeomorphism. If the images of a Legendrian knot limit to a smooth knot under this sequence, we show that it is Legendrian. We prove this by…

Symplectic Geometry · Mathematics 2022-01-13 Georgios Dimitroglou Rizell , Michael G. Sullivan

By adding or removing appropriate structures to Gauss diagram, one can create useful objects related to virtual links. In this paper few objects of this kind are studied: twisted virtual links generalizing virtual links; signed chord…

Geometric Topology · Mathematics 2007-05-23 Oleg Viro

Harvey-Kawamuro-Plamenevskaya demonstrated the existence of (transversely) non-isotopic transverse knots such that for every $n>1$ their $n$-fold cyclic branched covers are contactomorphic. In this short note, we construct other examples of…

Geometric Topology · Mathematics 2026-03-30 Marc Kegel , Isacco Nonino

We prove a complete classification theorem for loose Legendrian knots in an oriented 3-manifold, generalizing results of Dymara and Ding-Geiges. Our approach is to classify knots in a $3$-manifold $M$ that are transverse to a nowhere-zero…

Geometric Topology · Mathematics 2019-07-24 Patricia Cahn , Vladimir Chernov

We give a classification of Legendrian torus links. Along the way, we give the first classification of infinite families of Legendrian links where some smooth symmetries of the link cannot be realized by Legendrian isotopies. We also give…

Geometric Topology · Mathematics 2023-06-26 Jennifer Dalton , John B. Etnyre , Lisa Traynor

An elementary stabilization of a Legendrian link $L$ in the spherical cotangent bundle $ST^*M$ of a surface $M$ is a surgery that results in attaching a handle to $M$ along two discs away from the image in $M$ of the projection of the link…

Geometric Topology · Mathematics 2014-10-21 V. Chernov , R. Sadykov

Using the grid diagram formulation of knot Floer homology, Ozsvath, Szabo and Thurston defined an invariant of transverse knots in the tight contact 3-sphere. Shortly afterwards, Lisca, Ozsvath, Stipsicz and Szabo defined an invariant of…

Symplectic Geometry · Mathematics 2014-11-11 John A. Baldwin , David Shea Vela-Vick , Vera Vertesi

The Thurston-Bennequin invariant provides one notion of self-linking for any homologically-trivial Legendrian curve in a contact three-manifold. Here we discuss related analytic notions of self-linking for Legendrian knots in Euclidean…

Symplectic Geometry · Mathematics 2018-08-22 Chris Beasley , Brendan McLellan , Ruoran Zhang

We give a complete coarse classification of Legendrian and transverse torus knots in any contact structure on $S^3$.

Geometric Topology · Mathematics 2022-07-01 John B. Etnyre , Hyunki Min , Anubhav Mukherjee

A transverse knot is a knot that is transverse to the planes of the standard contact structure on real 3-space. In this paper we prove the Markov Theorem for transverse braids, which states that two transverse closed braids that are…

Geometric Topology · Mathematics 2007-05-23 Nancy C. Wrinkle

In this article we give necessary and sufficient conditions for two triples of integers to be realized as the Thurston-Bennequin number and the rotation number of a Legendrian theta-graph with all cycles unknotted. We show that these…

Geometric Topology · Mathematics 2016-01-20 Danielle O'Donnol , Elena Pavelescu

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

We study the Ozsv\'{a}th-Szab\'{o}-Thurston transverse invariant in combinatorial link Floer homology for certain transverse cables $\mathscr{L}_{p,q}$ of transverse link $L$ in $S^3$. Transverse cables $\mathscr{L}_{p,q}$ are constructed…

Geometric Topology · Mathematics 2021-10-05 Apratim Chakraborty