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Related papers: Non-loose torus knots

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Algebraic knots are known to be iterated torus knots and to admit L-space surgeries. However, Hedden proved that there are iterated torus knots that admit L-space surgeries but are not algebraic. We present an infinite family of such…

Geometric Topology · Mathematics 2016-03-30 Shida Wang

In 2003, Ozsv\'ath, Szab\'o, and Rasmussen introduced the $\tau$ invariant for knots, and in 2011, Sarkar published a computational shortcut for the $\tau$ invariant of knots that can be represented by diagonal grid diagrams. Previously,…

Geometric Topology · Mathematics 2025-09-10 Jackson Arndt , Malia Jansen , Payton McBurney , Katherine Vance

We present a direct connection between torus knots and Hopfions by finding stable and static solutions of the extended Faddeev-Skyrme model with a ferromagnetic potential term. (P,Q)--torus knots consisting of |Q| sine-Gordon kink strings…

High Energy Physics - Theory · Physics 2013-12-17 Michikazu Kobayashi , Muneto Nitta

In 1997, Chekanov gave the first example of a Legendrian nonsimple knot type: the $m(5_2)$ knot. Epstein, Fuchs, and Meyer extended his result by showing that there are at least $n$ different Legendrian representatives with maximal…

Symplectic Geometry · Mathematics 2013-05-08 John B. Etnyre , Lenhard L. Ng , Vera Vertesi

We study theta-curves embedded in a standard torus in the 3-sphere. We show that each nontrivial torus knot together with an essential arc determines a prime theta-curve, yielding explicit infinite families of prime theta-curves. We compute…

Geometric Topology · Mathematics 2026-04-01 Jack S. Calcut , Samantha E. Nieman

For a given $g>0$, we construct a family of non-decomposable Lagrangian cobordisms of genus $g$ between (stabilized) Legendrian knots in the standard contact three-sphere. The main technique we use to obstruct decomposability is based on…

Symplectic Geometry · Mathematics 2025-11-14 Roman Golovko , Daniel Komárek

In this article we define Lagrangian concordance of Legendrian knots, the analogue of smooth concordance of knots in the Legendrian category. In particular we study the relation of Lagrangian concordance under Legendrian isotopy. The focus…

Symplectic Geometry · Mathematics 2014-10-01 Baptiste Chantraine

Let $D$ be a diagram of an alternating knot with unknotting number one. The branched double cover of $S^3$ branched over $D$ is an L-space obtained by half integral surgery on a knot $K_D$. We denote the set of all such knots $K_D$ by…

Geometric Topology · Mathematics 2021-11-01 Andrew Donald , Duncan McCoy , Faramarz Vafaee

Ozsvath and Stipsicz showed that the LOSS invariant is natural under +1 contact surgery. We extend their result and prove the naturality of the LOSS invariant of a Legendrian L under any positive integer contact surgery along another…

Geometric Topology · Mathematics 2024-04-01 Shunyu Wan

We prove that the class of topological knot types that are both Legendrian simple and satisfy the uniform thickness property (UTP) is closed under cabling. An immediate application is that all iterated cabling knot types that begin with…

Geometric Topology · Mathematics 2016-01-20 Douglas J. LaFountain

We show that on any hyperbolic knot in $S^3$ there is at most one non-integral Dehn surgery which yields a manifold containing an incompressible torus.

Geometric Topology · Mathematics 2009-09-25 Cameron McA. Gordon , Ying-Qing Wu , Xingru Zhang

We classify tight contact structures with zero Giroux torsion on some Seifert-fibered manifolds with four exceptional fibers. We get the lower bound by constructing contact structures using Legendrian surgery. We use convex surface theory…

Geometric Topology · Mathematics 2025-04-04 Tanushree Shah

We exhibit pairs of transverse knots with the same self-linking number that are not transversely isotopic, using the recently defined knot Floer homology invariant for transverse knots and some algebraic refinements of it.

Geometric Topology · Mathematics 2010-03-15 Lenhard Ng , Peter Ozsvath , Dylan Thurston

In this paper, we show that any topological knot or link in $S^1 \times S^2$ sits on a planar page of an open book decomposition whose monodromy is a product of positive Dehn twists. As a consequence, any knot or link type in $S^1 \times…

Geometric Topology · Mathematics 2020-05-11 Sinem Onaran

We prove that for any pair of Legendrian representatives of the Chekanov-Eliashberg twist knots with different LOSS invariants, any negative rational contact $r$-surgery with $r\neq -1$ always gives rise to different contact 3-manifolds…

Geometric Topology · Mathematics 2026-03-31 Shunyu Wan , Hugo Zhou

This article contains is concerned with noncommutative analogue of topological finitely listed covering projections. In my previous article I have already find a family of covering projections of the noncommutative torus. This article…

Operator Algebras · Mathematics 2014-02-11 Petr Ivankov

The main result of this paper is a negative answer to the question: are all transversal knot types transversally simple? An explicit infinite family of examples is given of closed 3-braids that define transversal knot types that are not…

Geometric Topology · Mathematics 2009-03-02 Joan S Birman , William W Menasco

In this short note, we construct a family of non-regular, and therefore non-decomposable, Lagrangian concordances between Lagrangian fillable Legendrian knots in the standard contact 3-dimensional sphere. More precisely, for every…

Symplectic Geometry · Mathematics 2025-09-18 Georgios Dimitroglou Rizell , Roman Golovko

We use the contact invariant defined in [2] to construct a new invariant of Legendrian knots in Kronheimer and Mrowka's monopole knot homology theory (KHM), following a prescription of Stipsicz and V\'ertesi. Our Legendrian invariant…

Symplectic Geometry · Mathematics 2019-02-12 John A. Baldwin , Steven Sivek

I construct infinite families of knots and links with totally geodesic spanning surfaces, which we call TGS knots and TGS links, in various 3-manifolds. These 3-manifolds include thickened orientable surfaces, the sphere cross the circle,…

Geometric Topology · Mathematics 2024-12-24 Benjamin Shapiro