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相关论文: On the classification of tight contact structures

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We prove every oriented compact cyclic $3$-orbifold has a contact structure. There is another proof in the web by Daniel Herr in his uploaded thesis which depends on open book decompositions, ours is independent of that. We define…

代数拓扑 · 数学 2015-12-24 Saibal Ganguli

We classify the real tight contact structures on solid tori up to equivariant contact isotopy and apply the results to the classification of real tight structures on $S^3$ and real lens spaces $L(p,\pm 1)$. We prove that there is a unique…

几何拓扑 · 数学 2025-08-25 Sinem Onaran , Ferit Öztürk

We establish a parametric extension $h$-principle for overtwisted contact structures on manifolds of all dimensions, which is the direct generalization of the $3$-dimensional result from \cite{Eli89}. It implies, in particular, that any…

辛几何 · 数学 2014-10-14 Matthew Strom Borman , Yakov Eliashberg , Emmy Murphy

We show that for all $n \ge 3$, any $(2n+1)$-dimensional manifold that admits a tight contact structure, also admits a tight but non-fillable contact structure, in the same almost contact class. For $n=2$, we obtain the same result,…

辛几何 · 数学 2026-03-17 Jonathan Bowden , Fabio Gironella , Agustin Moreno , Zhengyi Zhou

We show that an oriented elliptic 3-manifold admits a universally tight positive contact structure iff the corresponding group of deck transformations on $S^3$ preserves a standard contact structure pointwise. We also relate univerally…

几何拓扑 · 数学 2007-05-23 Siddhartha Gadgil

It was proven in the first author's paper "Contact 3-manifolds twenty years since J. Martinet's work" (Ann. Inst. Fourier, 42(1992), 165--192) that any tight contact structure on the 3-sphere is diffeomorphic to the standard one. It was…

辛几何 · 数学 2021-08-24 Yakov Eliashberg , Nikolai Mishachev

We introduce a variant of contact homology for convex open contact manifolds. As an application, we prove the existence of (in fact, infinitely many) exotic tight contact structures on $\mathbb{R}^{2n-1}$ for all $n>2$.

辛几何 · 数学 2025-06-12 François-Simon Fauteux-Chapleau , Joseph Helfer

This is a survey on contact open books and contact Dehn surgery. The relation between these two concepts is discussed, and various applications are sketched, e.g. the monodromy of Stein fillable contact 3-manifolds, the Giroux-Goodman proof…

辛几何 · 数学 2011-12-22 Hansjörg Geiges

Using contact homology, we reobtain some recent results of Geiges and Gonzalo about the fundamental group of the space of contact structures on some 3-manifolds. We show that our techniques can be used to study higher dimensional contact…

辛几何 · 数学 2007-05-23 Frédéric Bourgeois

In this article, we find the complete list of all contact structures (up to isotopy) on closed three-manifolds which are supported by an open book decomposition having planar pages with three (but not less) boundary components. We…

几何拓扑 · 数学 2018-03-23 Mehmet Firat Arikan

We study constructions of contact forms on closed manifolds. A notion of strong symplectic fold structure is defined and we prove that there is a contact form on $M \x X$ provided that $M$ admits such a structure and $X$ is contact. This…

辛几何 · 数学 2013-08-13 Bogusław Hajduk , Rafał Walczak

Bill Thurston proved that taut foliations of hyperbolic 3-manifolds have Euler classes of norm at most one, and conjectured that any integral second cohomology class of norm equal to one is realised as the Euler class of some taut…

几何拓扑 · 数学 2023-12-11 Steven Sivek , Mehdi Yazdi

We show the existence of tight contact structures on infinitely many hyperbolic three-manifolds obtained via Dehn surgeries along sections of hyperbolic surface bundles over circle.

辛几何 · 数学 2018-03-23 M. Firat Arikan , Merve Secgin

We present new explicit tight and overtwisted contact structures on the (round) 3-sphere and the (flat) 3-torus for which the ambient metric is weakly compatible. Our proofs are based on the construction of nonvanishing curl eigenfields…

微分几何 · 数学 2024-09-25 Daniel Peralta-Salas , Radu Slobodeanu

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…

辛几何 · 数学 2021-01-05 Hansjörg Geiges , Sinem Onaran

We complete the classification of compact connected contact toric manifolds initiated by Banyaga and Molino and by Galicki and Boyer. As an application we prove the conjectures of Toth and Zelditch on toric integrable systems on the n-torus…

辛几何 · 数学 2007-05-23 Eugene Lerman

We prove gluing theorems for tight contact structures. In particular, we rederive (as special cases) gluing theorems due to Colin and Makar-Limanov, and present an algorithm for determining whether a given contact structure on a handlebody…

几何拓扑 · 数学 2007-05-23 Ko Honda

Knot filtered embedded contact homology was first introduced by Hutchings in 2015; it has been computed for the standard transverse unknot in irrational ellipsoids by Hutchings and for the Hopf link in lens spaces L(n,n-1) via a quotient by…

几何拓扑 · 数学 2024-02-23 Jo Nelson , Morgan Weiler

We study the Schouten-van Kampen connection associated to an almost contact or paracontact metric structure. With the help of such a connection, some classes of almost (para) contact metric manifolds are characterized. Certain curvature…

微分几何 · 数学 2014-02-25 Zbigniew Olszak

Extending our earlier results, we prove that certain tight contact structures on circle bundles over surfaces are not symplectically semi--fillable, thus confirming a conjecture of Ko Honda.

辛几何 · 数学 2007-05-23 Paolo Lisca , Andras I. Stipsicz