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Related papers: An algebraic generalization of Giroux's criterion

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These notes provide an introduction to Giroux's theory of convex surfaces in contact 3-manifolds and its simplest applications. They put a special emphasis on pictures and discussions of explicit examples. The first goal is to explain why…

Geometric Topology · Mathematics 2013-03-06 Patrick Massot

We construct examples in any odd dimension of contact manifolds with finite and non-zero algebraic torsion (in the sense of Latschev-Wendl), which are therefore tight and do not admit strong symplectic fillings. We prove that Giroux torsion…

Symplectic Geometry · Mathematics 2021-01-29 Agustin Moreno

We prove that Bourgeois' contact structures on $M \times \mathbb{T}^{2}$ determined by the supporting open books of a contact manifold $(M, \xi)$ are always tight. The proof is based on a contact homology computation leveraging holomorphic…

Symplectic Geometry · Mathematics 2024-04-26 Russell Avdek , Zhengyi Zhou

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 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 construct examples in any odd dimension of contact manifolds with finite and non-zero algebraic torsion (in the sense of Latschev-Wendl), which are therefore tight and do not admit strong symplectic fillings. We prove that Giroux torsion…

Symplectic Geometry · Mathematics 2024-10-23 Agustin Moreno

This paper begins the study of relations between Riemannian geometry and global properties of contact structures on 3-manifolds. In particular we prove an analog of the sphere theorem from Riemannian geometry in the setting of contact…

Symplectic Geometry · Mathematics 2015-09-14 John B. Etnyre , Rafal Komendarczyk , Patrick Massot

Contact structures on 3-manifolds are analyzed by decomposing the manifold along convex surfaces. Background results of Giroux, Eliashberg, Colin, and Honda are discussed with an emphasis on examples. Convex decompositions are then used to…

Geometric Topology · Mathematics 2007-05-23 William H. Kazez

We calculate the sutured version of cylindrical contact homology of a sutured contact solid torus $(S^1\times D^2,\Gamma, \xi)$, where $\Gamma$ consists of $2n$ parallel sutures of arbitrary slope and $\xi$ is a universally tight contact…

Symplectic Geometry · Mathematics 2019-01-28 Roman Golovko

We extract a nonnegative integer-valued invariant, which we call the "order of algebraic torsion", from the Symplectic Field Theory of a closed contact manifold, and show that its finiteness gives obstructions to the existence of symplectic…

Symplectic Geometry · Mathematics 2012-03-12 Janko Latschev , Chris Wendl

We lay the foundations of convex hypersurface theory in contact topology, extending the work of Giroux in dimension three. Specifically, we prove that any closed hypersurface in a contact manifold can be $C^0$-approximated by a convex one.…

Symplectic Geometry · Mathematics 2026-04-30 Joseph Breen , Austin Christian , Ko Honda , Yang Huang

Given a contact structure on a manifold $V$ together with a supporting open book decomposition, Bourgeois gave an explicit construction of a contact structure on $V \times \mathbb{T}^2$. We prove that all such structures are universally…

Symplectic Geometry · Mathematics 2022-06-15 Jonathan Bowden , Fabio Gironella , Agustin Moreno

Emmanuel Giroux showed that every contact structure on a closed three dimensional manifold is supported by an open book decomposition. We will extend this result by showing that the open book decomposition can be chosen in such a way that…

Symplectic Geometry · Mathematics 2019-12-19 Casim Abbas

We generalize the familiar notions of overtwistedness and Giroux torsion in 3-dimensional contact manifolds, defining an infinite hierarchy of local filling obstructions called planar torsion, whose integer-valued order $k \ge 0$ can be…

Symplectic Geometry · Mathematics 2019-12-19 Chris Wendl

The first goal of this paper is to construct examples of higher dimensional contact manifolds with specific properties. Our main results in this direction are the existence of tight virtually overtwisted closed contact manifolds in all…

Symplectic Geometry · Mathematics 2019-11-01 Fabio Gironella

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 use contact fiber sums of open book decompositions to define an infinite hierarchy of filling obstructions for contact 3-manifolds, called planar k-torsion for nonnegative integers k, all of which cause the contact invariant in Embedded…

Symplectic Geometry · Mathematics 2010-09-16 Chris Wendl

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,…

Symplectic Geometry · Mathematics 2026-03-17 Jonathan Bowden , Fabio Gironella , Agustin Moreno , Zhengyi Zhou

We introduce and investigate the notion of (strong) $K^n_G$-manifolds, where $G$ is an abelian group. One of the result related to that notion (Theorem 3.4) implies the following partial answer to the Bing-Borsuk problem \cite{bb}, whether…

General Topology · Mathematics 2014-04-15 V. Todorov , V. Valov
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