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We classify positive tight contact structures, up to isotopy fixing the boundary, on the manifolds $N=M(D^{2}; r_1, r_2)$ with minimal convex boundary of slope $s$ and Giroux torsion 0 along $\partial N$, where $r_1,r_2\in…

Geometric Topology · Mathematics 2011-11-22 Fan Ding , Youlin Li , Qiang Zhang

We classify positive, tight contact structures on closed Seifert fibered 3-manifolds with base S^2, three singular fibers and e_0\geq 0.

Symplectic Geometry · Mathematics 2007-05-23 Paolo Ghiggini , Paolo Lisca , Andras I. Stipsicz

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 classify tight contact structures on the small Seifert fibered 3--manifold M(-1; r_1, r_2, r_3) with r_i in (0,1) and r_1, r_2 \geq 1/2. The result is obtained by combining convex surface theory with computations of contact…

Symplectic Geometry · Mathematics 2007-05-23 Paolo Ghiggini , Paolo Lisca , Andras I. Stipsicz

In this article we classify up to isotopy tight contact structures on Seifert manifolds over the torus with one singular fibre.

Geometric Topology · Mathematics 2014-10-01 Paolo Ghiggini

We study some properties of transverse contact structures on small Seifert manifolds, and we apply them to the classification of tight contact structures on a family of small Seifert manifolds.

Geometric Topology · Mathematics 2007-10-10 Paolo Ghiggini

We determine the closed, oriented Seifert fibered 3-manifolds which carry positive tight contact structures. Our main tool is a new non-vanishing criterion for the contact Ozsvath-Szabo invariant.

Symplectic Geometry · Mathematics 2019-12-19 Paolo Lisca , Andras I. Stipsicz

In this paper we provide the classification of tight contact structures on some small Seifert fibered manifolds. As an application of this classification, combined with work of Lekili in \cite{L2010}, we obtain infinitely many…

Geometric Topology · Mathematics 2020-03-11 Bulent Tosun

Using contact surgery we define families of contact structures on certain Seifert fibered three-manifolds. We prove that all these contact structures are tight using contact Ozsath-Szabo invariants. We use these examples to show that, given…

Symplectic Geometry · Mathematics 2014-10-01 Paolo Lisca , Andras I. Stipsicz

In this paper, we study and almost completely classify contact structures on closed 3--manifolds which are totally geodesic for some Riemannian metric. Due to previously known results, this amounts to classifying contact structures on…

Geometric Topology · Mathematics 2014-11-11 Patrick Massot

Recently, there have been several breakthroughs in the classification of tight contact structures. We give an outline on how to exploit methods developed by Ko Honda and John Etnyre to obtain classification results for specific examples of…

Geometric Topology · Mathematics 2007-05-23 P. Ghiggini , S. Schoenenberger

It is a basic question in contact geometry to classify all non-isotopic tight contact structures on a given 3-manifold. If the manifold has a boundary, we need also specify the dividing set on the boundary. In this paper, we answer the…

Geometric Topology · Mathematics 2020-07-24 Zhenkun Li , Jessica J. Zhang

We develop the details of a surgery theory for contact manifolds of arbitrary dimension via convex structures, extending the 3-dimensional theory developed by Giroux. The theory is analogous to that of Weinstein manifolds in symplectic…

Symplectic Geometry · Mathematics 2019-05-29 Kevin Sackel

We establish upper bounds for the complexity of Seifert fibered manifolds with nonempty boundary. In particular, we obtain potentially sharp bounds on the complexity of torus knot complements.

Geometric Topology · Mathematics 2013-02-18 Evgeny Fominykh , Bert Wiest

The Ozsvath-Szabo contact invariant is a complete classification invariant for tight contact structures on small Seifert fibered 3-manifolds which are L-spaces.

Geometric Topology · Mathematics 2018-03-16 Irena Matkovič

We consider tight contact structures on plumbed 3-manifolds with no bad vertices. We discuss how one can count the number of tight contact structures with zero Giroux torsion on such 3-manifolds and explore conditions under which Giroux…

Geometric Topology · Mathematics 2025-10-02 Tanushree Shah , Jonathan Simone

We present classification results for exceptional Legendrian realisations of torus knots. These are the first results of that kind for non-trivial topological knot types. Enumeration results of Ding-Li-Zhang concerning tight contact…

Symplectic Geometry · Mathematics 2021-01-05 Hansjörg Geiges , Sinem Onaran

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

Two of the basic questions in contact topology are which manifolds admit tight contact structures, and on those that do, can we classify such structures. We present the first such classification on an infinite family of (mostly) hyperbolic…

Geometric Topology · Mathematics 2021-01-05 James Conway , Hyunki Min

We characterize L-spaces which are Seifert fibered over the 2-sphere in terms of taut foliations, transverse foliations and transverse contact structures. We give a sufficient condition for certain contact Seifert fibered 3-manifolds with…

Symplectic Geometry · Mathematics 2007-05-23 Paolo Lisca , Andras I. Stipsicz
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