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Related papers: Folded symplectic forms in contact topology

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We prove that every strong symplectic filling of a planar contact manifold admits a symplectic Lefschetz fibration over the disk, and every strong filling of the 3-torus similarly admits a Lefschetz fibration over the annulus. It follows…

Symplectic Geometry · Mathematics 2019-12-19 Chris Wendl

Motivated by the programmes initiated by Taubes and Perutz, we study the geometry of near-symplectic 4-manifolds, i.e., manifolds equipped with a closed 2-form which is symplectic outside a union of embedded 1-dimensional submanifolds, and…

Geometric Topology · Mathematics 2014-11-11 Yanki Lekili

We demonstrate that the functorial properties of the symplectic field theory under strong cobordisms and surgery cobordisms can produce finite algebraic (planar) torsions from simple examples, which gives a unified treatment of most of the…

Symplectic Geometry · Mathematics 2026-03-09 Zhengyi Zhou

We consider the existence of symplectic and conformal symplectic codimension-one foliations on closed manifolds of dimension at least 5. Our main theorem, based on a recent result by Bertelson-Meigniez, states that in dimension at least 7…

Symplectic Geometry · Mathematics 2021-11-02 Fabio Gironella , Lauran Toussaint

We consider certain type of fiber bundles with odd dimensional compact contact base, exact symplectic fibers, and the structure group contained in the group of exact symplectomorphisms of the fiber. We call such fibrations "contact…

Geometric Topology · Mathematics 2014-03-24 M. Firat Arikan

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

The notion of a symplectic expansion directly relates the topology of a surface to formal symplectic geometry. We give a method to construct a symplectic expansion by solving a recurrence formula given in terms of the…

Geometric Topology · Mathematics 2012-07-20 Yusuke Kuno

In this article we show that every closed oriented smooth 4-manifold can be decomposed into two codimension zero submanifolds (one with reversed orientation) so that both pieces are exact Kahler manifolds with strictly pseudoconvex…

Geometric Topology · Mathematics 2009-04-22 R Inanc Baykur

We construct bypass attachments in higher dimensional contact manifolds that, when attached to a neighborhood of a Weinstein hypersurface, yield a neighborhood of a new Weinstein hypersurface, obtained via local modifications to the…

Symplectic Geometry · Mathematics 2026-03-20 Joseph Breen , Austin Christian

We give examples of compact symplectic manifolds with disconnected contact type boundary in dimension $4n$ for any $n\geq 1$. The example is given by a subset of the tangent bundle of a compact quotient of the complex hyperbolic space…

Symplectic Geometry · Mathematics 2007-05-23 Leonardo Macarini

In this paper we analyze in detail a collection of motivating examples to consider $b^m$-symplectic forms and folded-type symplectic structures. In particular, we provide models in Celestial Mechanics for every $b^m$-symplectic structure.…

Symplectic Geometry · Mathematics 2019-04-09 Roisin Braddell , Amadeu Delshams , Eva Miranda , Cédric Oms , Arnau Planas

We give finiteness results and some classifications up to diffeomorphism of minimal strong symplectic fillings of Seifert fibered spaces over S^2 satisfying certain conditions, with a fixed natural contact structure. In some cases we can…

Geometric Topology · Mathematics 2015-08-18 Laura Starkston

In this paper we give explicit, handle-by-handle constructions of concave symplectic fillings of all closed, oriented contact 3-manifolds. These constructions combine recent results of Giroux relating contact structures and open book…

Geometric Topology · Mathematics 2009-11-07 David T. Gay

The goal of this paper is to set up the general framework of higher-dimensional Heegaard Floer homology, define the contact class, and use it to give an obstruction to the Liouville fillability of a contact manifold and a sufficient…

Symplectic Geometry · Mathematics 2020-06-11 Vincent Colin , Ko Honda , Yin Tian

This article describes the following results which relate to each other; i) convergence of high dimensional contact structure to codimension one foliation with Reeb component, ii) relation between Nil-type and Sol-type contact submanifolds…

Geometric Topology · Mathematics 2015-05-28 Atsuhide Mori

We introduce in this paper a field theory on symplectic manifolds that are fibered over a real surface with interior marked points and cylindrical ends. We assign to each such object a morphism between certain tensor products of quantum and…

Symplectic Geometry · Mathematics 2014-11-11 Francois Lalonde

In this paper, we introduce the notions of an iterated planar Lefschetz fibration and an iterated planar open book decomposition and prove the Weinstein conjecture for contact manifolds supporting an open book that has iterated planar…

Symplectic Geometry · Mathematics 2017-10-24 Bahar Acu

We provide a closed, simply connected, symplectic $6$-manifold having infinitely many codimension $2$ symplectic submanifolds. These are mutually homologous but homotopy inequivalent, and furthermore, they cannot admit complex structures.…

Symplectic Geometry · Mathematics 2025-06-17 Takahiro Oba

The existence of a "Plastikstufe" for a contact structure implies the Weinstein conjecture for all supporting contact forms.

Symplectic Geometry · Mathematics 2010-03-03 Peter Albers , Helmut Hofer

We discuss the interplay between lagrangian distributions and connections in symplectic geometry, beginning with the traditional case of symplectic manifolds and then passing to the more general context of poly- and multisymplectic…

Differential Geometry · Mathematics 2014-12-12 Michael Forger , Sandra Z. Yepes