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Related papers: Contact surgery and transverse invariants

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In this paper, we explore minimal contact triangulations on contact 3-manifolds. We give many explicit examples of contact triangulations that are close to minimal ones. The main results of this article say that on any closed oriented…

Geometric Topology · Mathematics 2016-08-15 Basudeb Datta , Dheeraj Kulkarni

We prove that a version of the Thurston-Bennequin inequality holds for Legendrian and transverse links in a rational homology contact 3-sphere $(M,\xi)$, whenever $\xi$ is tight. More specifically, we show that the self-linking number of a…

Geometric Topology · Mathematics 2020-05-22 Alberto Cavallo

We define relative versions of the classical invariants of Legendrian and transverse knots in contact 3-manifolds for knots that are homologous to a fixed reference knot. We show these invariants are well-defined and give some basic…

Symplectic Geometry · Mathematics 2009-09-25 Georgi D. Gospodinov

For a nullhomologous Legendrian knot in a closed contact 3-manifold Y we consider a contact structure obtained by positive rational contact surgery. We prove that in this situation the Heegaard Floer contact invariant of Y is mapped by a…

Geometric Topology · Mathematics 2018-06-13 Thomas E. Mark , Bülent Tosun

We consider surgery moves along (n+1)-component Brunnian links in compact connected oriented 3-manifolds, where the framing of the each component is 1/k for k in Z. We show that no finite type invariant of degree < 2n-2 can detect such a…

Geometric Topology · Mathematics 2009-07-29 Jean-Baptiste Meilhan

We establish a relation between several easy-to-calculate numerical invariants of generic knots in $\mathbb{H}^2 \times S^1$, and use it to give a new method of computing the Thurston-Bennequin number of Legendrian knots in the tight…

Geometric Topology · Mathematics 2007-05-23 Hao Wu

Suppose $K$ is a knot in a 3-manifold $Y$, and that $Y$ admits a pair of distinct contact structures. Assume that $K$ has Legendrian representatives in each of these contact structures, such that the corresponding Thurston-Bennequin…

Geometric Topology · Mathematics 2024-04-11 Shunyu Wan

We give a method for constructing a Legendrian representative of a knot in $S^3$ which realizes its maximal Thurston-Bennequin number under a certain condition. The method utilizes Stein handle decompositions of $D^4$, and the resulting…

Geometric Topology · Mathematics 2019-02-20 Kouichi Yasui

It is shown that Legendrian (resp. transverse) cable links in the 3-sphere with its standard tight contact structure, i.e. links consisting of an unknot and a cable of that unknot, are classified by their oriented link type and the…

Symplectic Geometry · Mathematics 2007-12-18 Fan Ding , Hansjörg Geiges

Knots and links in 3-manifolds are studied by applying intersection invariants to singular concordances. The resulting link invariants generalize the Arf invariant, the mod 2 Sato-Levine invariants, and Milnor's triple linking numbers.…

Geometric Topology · Mathematics 2016-01-20 Rob Schneiderman

Using the rational surgery formula for the Casson--Walker--Lescop invariant of links in the $3$-sphere, we show that any null-homologous knot in a rational homology sphere admits at most two pairs of integral purely cosmetic surgeries. We…

Geometric Topology · Mathematics 2026-03-13 Kazuhiro Ichihara , In Dae Jong , Yasuyoshi Tsutsumi

Codimension 2 contact submanifolds are the natural generalization of transverse knots to contact manifolds of arbitrary dimension. In this paper, we construct new invariants of codimension 2 contact submanifolds. Our main invariant can be…

Symplectic Geometry · Mathematics 2024-03-06 Laurent Côté , François-Simon Fauteux-Chapleau

We show that there exist infinitely many closed contact 3-manifolds containing half Giroux torsion along a separating torus whose contact invariants do not vanish. This provides counterexamples to Ghiggini's conjecture and suggests that…

Geometric Topology · Mathematics 2025-07-25 Hyunki Min , Konstantinos Varvarezos

We analyze transverse doubled knots in the standard contact 3-space by using spanned clasp disks. As applications, we will estimate their self-linking number and furthermore we will show that in many cases, transverse twist knots with the…

Geometric Topology · Mathematics 2016-07-28 Ichiro Torisu

In the prequel of this paper, Kauffman and Ogasa introduced new topological quantum invariants of compact oriented 3-manifolds with boundary where the boundary is a disjoint union of two identical surfaces. The invariants are constructed…

Geometric Topology · Mathematics 2022-03-25 Heather A. Dye , Louis H. Kauffman , Eiji Ogasa

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 prove that the Ozsvath-Szabo contact invariant of a closed contact 3-manifold with positive Giroux torsion vanishes.

Geometric Topology · Mathematics 2008-01-18 Paolo Ghiggini , Ko Honda , Jeremy Van Horn-Morris

We describe an action of the concordance group of knots in the three-sphere on concordances of knots in arbitrary 3-manifolds. As an application we define the notion of almost-concordance between knots. After some basic results, we prove…

Geometric Topology · Mathematics 2018-03-07 Daniele Celoria

In the note we study Legendrian and transverse knots in rationally null-homologous knot types. In particular we generalize the standard definitions of self-linking number, Thurston-Bennequin invariant and rotation number. We then prove a…

Symplectic Geometry · Mathematics 2014-04-07 Kenneth L. Baker , John B. Etnyre

We prove that a nicely fibered link (by which we mean the binding of an open book) in a tight contact manifold $(M,\xi)$ with zero Giroux torsion has a transverse representative realizing the Bennequin bound if and only if the contact…

Symplectic Geometry · Mathematics 2009-07-09 John B. Etnyre , Jeremy Van Horn-Morris