English
Related papers

Related papers: A combinatorial description of the LOSS Legendrian…

200 papers

We use monopole Floer homology for sutured manifolds to construct invariants of Legendrian knots in a contact 3-manifold. These invariants assign to a knot K in Y elements of the monopole knot homology KHM(-Y,K), and they strongly resemble…

Symplectic Geometry · Mathematics 2015-06-10 Steven Sivek

We define invariants of null--homologous Legendrian and transverse knots in contact 3--manifolds. The invariants are determined by elements of the knot Floer homology of the underlying smooth knot. We compute these invariants, and show that…

Symplectic Geometry · Mathematics 2009-04-21 Paolo Lisca , Peter Ozsváth , András I. Stipsicz , Zoltán Szabó

We prove the equivalence of the invariants EH(L) and LOSS-(L) for oriented Legendrian knots L in the 3-sphere equipped with the standard contact structure, partially extending a previous result by Stipsicz and Vertesi. In the course of the…

Geometric Topology · Mathematics 2014-04-07 Marco Golla

Using the combinatorial approach to knot Floer homology, we define an invariant for Legendrian knots in the three-sphere, which takes values in link Floer homology. This invariant can be used to also construct an invariant of transverse…

Geometric Topology · Mathematics 2014-11-11 Peter Ozsvath , Zoltan Szabo , Dylan Thurston

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

Sarkar and Wang proved that the hat version of Heegaard Floer homology group of a closed oriented 3-manifold is combinatorial starting from an arbitrary nice Heegaard diagram and in fact every closed oriented 3-manifold admits such a…

Geometric Topology · Mathematics 2012-06-13 Tolga Etgü , Burak Ozbagci

Using contact-geometric techniques and sutured Floer homology, we present an alternate formulation of the minus and plus version of knot Floer homology. We further show how natural constructions in the realm of contact geometry give rise to…

Geometric Topology · Mathematics 2017-06-14 John B. Etnyre , David Shea Vela-Vick , Rumen Zarev

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

We establish some general relations between Heegaard Floer based contact invariants. In particular, we observe that if the contact invariant of large negative, respectively positive, contact surgeries along a Legendrian knot does not…

Geometric Topology · Mathematics 2023-10-16 Irena Matkovič

Suppose that L is a null--homologous Legendrian knot in a contact 3--manifold. We determine the connection between the sutured invariant of the complement of L and the Legendrian invariant defined by Lisca, Ozsvath, Stipsicz and Szabo. In…

Symplectic Geometry · Mathematics 2008-12-30 Andras I. Stipsicz , Vera Vertesi

In this short note, we observe that the Heegaard Floer contact invariant is combinatorial by applying the algorithm of Sarkar--Wang to the description of the contact invariant due to Honda--Kazez--Matic. We include an example of this…

Geometric Topology · Mathematics 2014-10-01 Olga Plamenevskaya

Using the knot Floer homology filtration, we define invariants associated to a knot in a three-manifold possessing non-vanishing Floer co(homology) classes. In the case of the Ozsvath-Szabo contact invariant we obtain an invariant of knots…

Geometric Topology · Mathematics 2007-08-06 Matthew Hedden

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 describe an invariant of a contact 3-manifold with convex boundary as an element of Juh\'asz's sutured Floer homology. Our invariant generalizes the contact invariant in Heegaard Floer homology in the closed case, due to Ozsv\'ath and…

Geometric Topology · Mathematics 2007-10-22 Ko Honda , William H. Kazez , Gordana Matic

We present two different constructions of invariants for Legendrian knots in the standard contact space $\R^3$. These invariants are defined combinatorially, in terms of certain planar projections, and are useful in distinguishing…

Geometric Topology · Mathematics 2007-05-23 Yuri Chekanov

We introduce a generalization of the Lisca-Ozsv\'ath-Stipsicz-Szab\'o Legendrian invariant $\mathfrak L$ to links in every rational homology sphere, using the collapsed version of link Floer homology. We represent a Legendrian link $L$ in a…

Geometric Topology · Mathematics 2020-06-18 Alberto Cavallo

We give new tightness criteria for positive surgeries along knots in the 3-sphere, generalising results of Lisca and Stipsicz, and Sahamie. The main tools will be Honda, Kazez and Matic's, Ozsvath and Szabo's Floer-theoretic contact…

Geometric Topology · Mathematics 2015-05-27 Marco Golla

We give combinatorial descriptions of the Heegaard Floer homology groups for arbitrary three-manifolds (with coefficients in Z/2). The descriptions are based on presenting the three-manifold as an integer surgery on a link in the…

Geometric Topology · Mathematics 2020-07-02 Ciprian Manolescu , Peter Ozsvath , Dylan Thurston

We prove that the LOSS and GRID invariants of Legendrian links in knot Floer homology behave in certain functorial ways with respect to decomposable Lagrangian cobordisms in the symplectization of the standard contact structure on…

Geometric Topology · Mathematics 2019-07-30 John A. Baldwin , Tye Lidman , C. -M. Michael Wong

We provide a translation between Chekanov's combinatorial theory for invariants of Legendrian knots in the standard contact R^3 and a relative version of Eliashberg and Hofer's Contact Homology. We use this translation to transport the idea…

Symplectic Geometry · Mathematics 2007-05-23 John B. Etnyre , Lenhard L. Ng , Joshua M. Sabloff
‹ Prev 1 2 3 10 Next ›