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Related papers: Contact toric manifolds

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We introduce and study a special class of Kato manifolds, which we call toric Kato manifolds. Their construction stems from toric geometry, as their universal covers are open subsets of toric algebraic varieties of non-finite type. This…

Algebraic Geometry · Mathematics 2022-09-27 Nicolina Istrati , Alexandra Otiman , Massimiliano Pontecorvo , Matteo Ruggiero

We show that the canonical contact structure on the link of a normal complex singularity is universally tight. As a corollary we show the existence of closed, oriented, atoroidal 3-manifolds with infinite fundamental groups which carry…

Geometric Topology · Mathematics 2012-06-13 Yanki Lekili , Burak Ozbagci

We introduce the cutting construction of possibly non-compact symplectic toric manifolds, in particular, toric symplectic cones that correspond to a weakly convex good cone. Since the symplectization of a toric contact manifold is a toric…

Symplectic Geometry · Mathematics 2014-01-21 Yushi Okitsu

Many noncompact hyperbolic 3-manifolds are topologically complements of links in the 3-sphere. Generalizing to dimension 4, we construct a dozen examples of noncompact hyperbolic 4-manifolds, all of which are topologically complements of…

Geometric Topology · Mathematics 2014-10-01 Dubravko Ivansic , John G. Ratcliffe , Steven T. Tschantz

We compute the first and second homotopy groups of a class of contact toric manifolds in terms of the images of the associated moment map.

Symplectic Geometry · Mathematics 2007-05-23 Eugene Lerman

We obtain a generalization of the Kodaira-Morrow stability theorem for cosymplectic structures. We investigate cosymplectic geometry on Lie groups and on their compact quotients by uniform discrete subgroups. In this way we show that a…

Differential Geometry · Mathematics 2014-05-26 Anna Fino , Luigi Vezzoni

We develop a diagrammatic framework for applying the symplectic JSJ decomposition to exact/weak symplectic fillings of 3-dimensional contact manifolds. Namely, we apply the symplectic JSJ decomposition to a contact surgery diagram for some…

Geometric Topology · Mathematics 2025-10-23 Austin Christian , Tanushree Shah

Recently, extending work by Karshon, Kessler and Pinsonnault, Borisov and McDuff showed that a given symplectic manifold $(M,\omega)$ has a finite number of distinct toric structures. Moreover, McDuff also showed a product of two projective…

Symplectic Geometry · Mathematics 2012-02-16 Andrew Fanoe

As an application of the Bochner formula, we prove that if a $2$-dimensional Riemannian manifold admits a non-trivial smooth tangent vector field $X$ then its Gauss curvature is the divergence of a tangent vector field, constructed from…

Differential Geometry · Mathematics 2019-11-21 J. M. Almira , A. Romero

We present a classification of compact Kaehler manifolds admitting a hamiltonian 2-form (which were classified locally in part I of this work). This involves two components of independent interest. The first is the notion of a rigid…

Differential Geometry · Mathematics 2007-05-23 Vestislav Apostolov , David M. J. Calderbank , Paul Gauduchon , Christina W. Tonneson-Friedman

This is a collection of results on the topology of toric symplectic manifolds. Using an idea of Borisov, we show that a closed symplectic manifold supports at most a finite number of toric structures. Further, the product of two projective…

Symplectic Geometry · Mathematics 2014-11-11 Dusa McDuff

We describe a necessary and sufficient condition for a principal circle bundle over an even-dimensional manifold to carry an invariant contact structure. As a corollary it is shown that all circle bundles over a given base manifold carry an…

Symplectic Geometry · Mathematics 2014-02-26 Fan Ding , Hansjörg Geiges

In this paper, we extend the result about the existence of K\"ahler-Ricci soliton on toric manifold (proved by Wang and Zhy) by proving this existence on some wonderful group compactifications using the continuity method.

Differential Geometry · Mathematics 2019-02-18 François Delgove

This article is a survey of a series of papers [FOOO3,FOOO4,FOOO5] in which we developed the method of calculation of Floer cohomology of Lagrangian torus orbits in compact toric manifolds, and its applications to symplectic topology and to…

Symplectic Geometry · Mathematics 2010-11-18 Kenji Fukaya , Yong-Geun Oh , Hiroshi Ohta , Kaoru Ono

This is an introductory text on the more topological aspects of contact geometry, written for the Handbook of Differential Geometry vol. 2. After discussing (and proving) some of the fundamental results of contact topology (neighbourhood…

Symplectic Geometry · Mathematics 2014-11-18 Hansjörg Geiges

In this article we study covering spaces of symplectic toric orbifolds and symplectic toric orbifold bundles. In particular, we show that all symplectic toric orbifold coverings are quotients of some symplectic toric orbifold by a finite…

Symplectic Geometry · Mathematics 2024-05-21 Paweł Raźny , Nikolay Sheshko

We continue the study of compact holomorphic $p$-contact manifolds $X$ that we introduced recently by expanding the discussion to include non-K\"ahler hyperbolicity issues and a differential calculus based on what we call the Lie derivative…

Differential Geometry · Mathematics 2025-11-17 Hisashi Kasuya , Dan Popovici , Luis Ugarte

We show that an overtwisted contact structure on a closed, oriented 3-manifold can be defined by a contact form having a Bott-integrable Reeb flow if and only if the Poincar\'e dual of its Euler class is represented by a graph link.

Symplectic Geometry · Mathematics 2026-03-31 Hansjörg Geiges , Jakob Hedicke , Murat Sağlam

Let $X$ be a connected compact complex manifold admitting a finite surjective map $A \to X$ from a complex torus $A.$ We prove that up to finite \'etale cover, $X$ is a product of projective spaces and a torus.

Algebraic Geometry · Mathematics 2008-02-25 Jean-Pierre Demailly , Jun-Muk Hwang , Thomas Peternell

We prove the existence of periodic orbits for steady $C^\omega$ Euler flows on all Riemannian solid tori. By using the correspondence theorem from part I of this series, we reduce the problem to the Weinstein Conjecture for solid tori. We…

Symplectic Geometry · Mathematics 2007-05-23 John Etnyre , Robert Ghrist