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We consider a compact complex manifold with smooth Levi convex boundary and a tame symplectic form. Consider a real two-sphere with elliptic and hyperbolic complex points generically embedded to the boundary of manifold. We prove a result…

复变函数 · 数学 2012-03-15 H. Gaussier , A. Sukhov

We study the relative symplectic cohomology with the help of an index bounded contact form. For a Liouville domain with an index bounded boundary, we construct a spectral sequence which starts from its classical symplectic cohomology and…

辛几何 · 数学 2025-01-23 Yuhan Sun

The contact invariant is an element in the monopole Floer homology groups of an oriented closed three manifold canonically associated to a given contact structure. A non-vanishing contact invariant implies that the original contact…

几何拓扑 · 数学 2020-07-29 Mariano Echeverria

This paper investigates the symplectic and contact topology associated to circular spherical divisors. We classify, up to toric equivalence, all concave circular spherical divisors $ D $ that can be embedded symplectically into a closed…

辛几何 · 数学 2022-01-07 Tian-Jun Li , Cheuk Yu Mak , Jie Min

We prove that, under some natural conditions, Hamiltonian systems on a contact manifold $C$ can be split into a Reeb dynamics on an open subset of $C$ and a Liouville dynamics on a submanifold of $C$ of codimension 1. For the Reeb dynamics…

数学物理 · 物理学 2020-12-02 Alessandro Bravetti , Manuel de León , Juan Carlos Marrero , Edith Padrón

We construct open symplectic manifolds which are convex at infinity ("Liouville manifolds") and which are diffeomorphic, but not symplectically isomorphic, to cotangent bundles T^*S^{n+1}, for any n+1 \geq 3. These manifolds are constructed…

辛几何 · 数学 2015-04-08 Maksim Maydanskiy , Paul Seidel

We introduce scattering-symplectic manifolds, manifolds with a type of minimally degenerate Poisson structure that is not too restrictive so as to have a large class of examples, yet restrictive enough for standard Poisson invariants to be…

辛几何 · 数学 2021-01-27 Melinda Lanius

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…

几何拓扑 · 数学 2009-11-07 David T. Gay

Gromov's famous non-squeezing theorem (1985) states that the standard symplectic ball cannot be symplectically squeezed into any cylinder of smaller radius. Does there exist an analogue of this result in contact geometry? Our main finding…

辛几何 · 数学 2014-11-11 Yakov Eliashberg , Sang Seon Kim , Leonid Polterovich

We introduce topological contact dynamics of a smooth manifold carrying a cooriented contact structure, generalizing previous work in the case of a symplectic structure [MO07] or a contact form [BS12]. A topological contact isotopy is not…

辛几何 · 数学 2013-10-07 Stefan Müller , Peter Spaeth

The aim of this paper is to address the following question: given a contact manifold $(\Sigma, \xi)$, what can be said about the aspherical symplectic manifolds $(W, \omega)$ bounded by $(\Sigma, \xi)$ ? We first extend a theorem of…

辛几何 · 数学 2009-12-01 Alexandru Oancea , Claude Viterbo

We study the topological obstructions of dynamical convexity on contact manifolds focusing on fillability by cotangent bundles and subcritical surgeries. Using links to algebraic geometry, we motivate and define a stronger version of…

辛几何 · 数学 2026-02-23 Shahnaz Shamim Shahul

We show that for dynamically convex contact forms in three dimensions, the cylindrical contact homology differential d can be defined by directly counting holomorphic cylinders for a generic almost complex structure, without any abstract…

辛几何 · 数学 2016-07-14 Michael Hutchings , Jo Nelson

We define a relative version of contact homology for contact manifolds with convex boundary, and prove basic properties of this relative contact homology. Similar considerations also hold for embedded contact homology.

辛几何 · 数学 2014-11-11 Vincent Colin , Paolo Ghiggini , Ko Honda , Michael Hutchings

A regular contact manifold is a manifold $M$ equipped with a globally defined contact form $\eta$ such that the topological space $M/\mathcal{R}$ of orbits (trajectories) of the Reeb vector field $\mathcal{R}$ of $\eta$ carries a smooth…

辛几何 · 数学 2023-07-27 Katarzyna Grabowska , Janusz Grabowski

An important class of contact 3--manifolds are those that arise as links of rational surface singularities with reduced fundamental cycle. We explicitly describe symplectic caps (concave fillings) of such contact 3--manifolds. As an…

辛几何 · 数学 2010-09-24 David T. Gay , Andras I. Stipsicz

The standard contact structure on the three-sphere is invariant under the action of the cyclic group of order p yielding the lens space L(p,q). Therefore, every lens space carries a natural quotient contact structure Q. A theorem of…

辛几何 · 数学 2007-05-23 Paolo Lisca

We classify four-dimensional manifolds endowed with symplectic pairs admitting embedded symplectic spheres with non-negative self-intersection, following the strategy of McDuff's classification of rational and ruled symplectic four…

辛几何 · 数学 2019-03-05 Gianluca Bande , Paolo Ghiggini

We prove, for a class of contact manifolds, that the universal cover of the group of contact diffeomorphisms carries a natural partial order. It leads to a new viewpoint on geometry and dynamics of contactomorphisms. It gives rise to…

辛几何 · 数学 2007-05-23 Yakov Eliashberg , Leonid Polterovich

Contact manifolds are odd-dimensional smooth manifolds endowed with a maximally non-integrable field of hyperplanes. They are intimately related to symplectic manifolds, i.e. even-dimensional smooth manifolds endowed with a closed…

辛几何 · 数学 2015-11-24 Sheila Sandon