Results 1 to 10 of about 7,184 (85)

Symplectic Manifolds: Gromov-Witten Invariants on Symplectic and Almost Contact Metric Manifolds [PDF]

open access: bronze, 2017
In this chapter, we introduce Gromov-Witten invariant, quantum cohomology, Gromov-Witten potential, and Floer cohomology on symplectic manifolds, and in connection with these, we describe Gromov-Witten type invariant, quantum type cohomology, Gromov ...
Yong Seung Cho
core   +5 more sources

Almost contact metric submersions and symplectic manifolds

open access: bronzeTURKISH JOURNAL OF MATHEMATICS, 2014
In this paper, we discuss some geometric properties of almost contact metric submersions involving symplectic manifolds. We show that this is obtained if the total space is an b-almost Kenmotsu manifold.
Augustin BATUBENGE   +1 more
openaire   +3 more sources

Symplectic Groupoids and Generalized Almost Contact Manifolds [PDF]

open access: green, 2014
We obtain equivalent assertions among the integrability conditions of generalized almost contact manifolds, the condition of compatibility of source and target maps of symplectic groupoids with symplectic form and generalized contact ...
Fulya Şahin
openalex   +4 more sources

The topology of Stein fillable manifolds in high dimensions II [PDF]

open access: yes, 2015
We continue our study of contact structures on manifolds of dimension at least five using complex surgery theory. We show that in each dimension 2q+1 > 3 there are 'maximal' almost contact manifolds to which there is a Stein cobordism from any other (2q ...
Bowden, Jonathan   +3 more
core   +3 more sources

Contact pairs and locally conformally symplectic structures [PDF]

open access: yes, 2010
We discuss a correspondence between certain contact pairs on the one hand, and certain locally conformally symplectic forms on the other. In particular, we characterize these structures through suspensions of contactomorphisms.
Bande, G., Kotschick, D.
core   +1 more source

On the geometry of almost $\mathcal{S}$-manifolds [PDF]

open access: yes, 2011
An $f$-structure on a manifold $M$ is an endomorphism field $\phi$ satisfying $\phi^3+\phi=0$. We call an $f$-structure {\em regular} if the distribution $T=\ker\phi$ is involutive and regular, in the sense of Palais.
Fitzpatrick, Sean
core   +3 more sources

Inequivalent contact structures on Boothby-Wang 5-manifolds

open access: yes, 2012
We consider contact structures on simply-connected 5-manifolds which arise as circle bundles over simply-connected symplectic 4-manifolds and show that invariants from contact homology are related to the divisibility of the canonical class of the ...
D Barden   +15 more
core   +1 more source

Generalized Contact Structures

open access: yes, 2009
We study integrability of generalized almost contact structures, and find conditions under which the main associated maximal isotropic vector bundles form Lie bialgebroids. These conditions differentiate the concept of generalized contact structures from
Poon, Yat Sun, Wade, Aissa
core   +1 more source

Locally conformal symplectic nilmanifolds with no locally conformal K\"ahler metrics [PDF]

open access: yes, 2014
We obtain an example of a compact locally conformal symplectic nilmanifold which admits no locally conformal K\"ahler metrics. This gives a new positive answer to a question raised by L. Ornea and M. Verbitsky.Comment: 7 pages, no figures.
Carlos Marrero, Giovanni Bazzoni, Juan
core   +1 more source

Homotopical Height

open access: yes, 2014
Given a group $G$ and a class of manifolds $\CC$ (e.g. symplectic, contact, K\"ahler etc), it is an old problem to find a manifold $M_G \in \CC$ whose fundamental group is $G$. This article refines it: for a group $G$ and a positive integer $r$ find $M_G
Biswas, Indranil   +2 more
core   +1 more source

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