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Related papers: Getting a handle on contact manifolds

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We propose a theory of contact invariants and open string invariants, assuming that the almost complex $J$ is either non-degenerate or of Bott-type. We do not choose the complex structure $\tilde{J}$ such that $L_X\tilde{J}=0$ on periodic…

Symplectic Geometry · Mathematics 2015-07-30 An-Min Li , Li Sheng

In this article, we define the contact surgery distance of two contact 3-manifolds $(M,\xi)$ and $(M',\xi')$ as the minimal number of contact surgeries needed to obtain $(M,\xi)$ from $(M',\xi')$. Our main result states that the contact…

Geometric Topology · Mathematics 2025-12-18 Marc Kegel , Isacco Nonino , Monika Yadav

We use sutured manifold theory, essential laminations and essential branched surfaces to establish the upper bounds of distances between certain types of nonsimple Dehn surgery slopes. This is the revised version of an earlier preprint {\it…

Geometric Topology · Mathematics 2009-09-25 Ying-Qing Wu

In this note, we prove that every closed connected oriented odd-dimensional manifold admits a map of non-zero degree (i.e., a domination) from a tight contact manifold of the same dimension. This provides an odd-dimensional counterpart of a…

Symplectic Geometry · Mathematics 2025-02-20 Sekh Kiran Ajij , Ritwik Chakraborty , Balarka Sen

Given two closed contact three-manifolds, one can form their contact connected sum via the Weinstein one-handle attachment. We study how pseudo-holomorphic curves in the symplectization behave under this operation. As a result, we give a…

Symplectic Geometry · Mathematics 2025-01-30 Luya Wang

We execute Avdek's algorithm to find many algebraically overtwisted and tight $3$-manifolds by contact $+1$ surgeries. In particular, we show that a contact $1/k$ surgery on the standard contact $3$-sphere along any positive torus knot with…

Symplectic Geometry · Mathematics 2024-11-01 Youlin Li , Zhengyi Zhou

In this paper we prove a vanishing theorem for the contact Ozsvath--Szabo invariants of certain contact 3--manifolds having positive Giroux torsion. We use this result to establish similar vanishing results for contact structures with…

Symplectic Geometry · Mathematics 2007-05-23 Paolo Lisca , Andras I. Stipsicz

We show that every open book decomposition of a contact 3-manifold can be represented (up to isotopy) by a smooth R-invariant family of pseudoholomorphic curves on its symplectization with respect to a suitable stable Hamiltonian structure.…

Symplectic Geometry · Mathematics 2009-06-24 Chris Wendl

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

When can one 3-manifold be transformed to another by a finite sequence of Dehn surgeries which are restricted to preserve the first homology of the manifolds ? What is the resulting equivalence relation on 3-manifolds ? What if the surgery…

Geometric Topology · Mathematics 2010-04-06 Tim Cochran , Amir Gerges , Kent Orr

In this paper, using pseudo-holomorphic curve method, one proves the Weinstein conjecture in the product $P_1\times P_2$ of two strongly geometrically bounded symplectic manifolds under some conditions with $P_1$. In particular, if $N$ is a…

Symplectic Geometry · Mathematics 2015-04-28 Yanqiao Ding , Jianxun Hu

Let $\xi$ be a $\tau$-invariant contact structure on $N(W) = \mathbb{R}_{\tau} \times W$ for a closed, $2n$-dimensional manifold $W$, so that each $\{\tau\} \times W$ is a convex hypersurface. When $n=1$, Giroux's criterion provides a…

Symplectic Geometry · Mathematics 2023-10-05 Russell Avdek

We prove a Bonnet-Myers type theorem for quaternionic contact manifolds of dimension bigger than 7. If the manifold is complete with respect to the natural sub-Riemannian distance and satisfies a natural Ricci-type bound expressed in terms…

Differential Geometry · Mathematics 2018-12-11 Davide Barilari , Stefan Ivanov

Rooted in group field theory and matrix models, random tensor models are a recent background-invariant approach to quantum gravity in arbitrary dimensions. Colored tensor models (CTM) generate random triangulated orientable…

Mathematical Physics · Physics 2017-09-13 Carlos I. Pérez-Sánchez

We investigate the local geometry of a pair of independent contact structures on 3-manifolds under maps that independently preserve each contact structure. We discover that such maps are homotheties on the contact 1-forms and we discover…

Differential Geometry · Mathematics 2024-05-22 Taylor J. Klotz , George R. Wilkens

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

Recently, Honda, Kazez and Matic described an adapted partial open book of a compact contact 3-manifold with convex boundary by generalizing the work of Giroux in the closed case. They also implicitly established a one-to-one correspondence…

Geometric Topology · Mathematics 2012-04-12 Tolga Etgü , Burak Ozbagci

The validity of Freedman's disk theorem is known to depend only on the fundamental group. It was conjectured that it fails for nonabelian free fundamental groups. If this were true then surgery theory would work in dimension four. Recently,…

Geometric Topology · Mathematics 2007-05-23 Friedrich Hegenbarth , Dušan Repovš

We exploit the Cartan-K\"ahler theory to prove the local existence of real analytic quaternionic contact structures for any prescribed values of the respective curvature functions and their covariant derivatives at a given point on a…

Differential Geometry · Mathematics 2017-11-28 Ivan Minchev , Jan Slovák

We study a class of simply connected manifolds in all odd dimensions greater than 3 that exhibit an infinite number of toric contact structures of Reeb type that are inequivalent as contact structures. We compute the cohomology ring of our…

Differential Geometry · Mathematics 2014-04-16 Charles P. Boyer , Christina W. Tønnesen-Friedman
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