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Related papers: Exotic tight contact structures on $\mathbb{R}^n$

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We take a first step towards understanding the relationship between foliations and universally tight contact structures on hyperbolic 3-manifolds. If a surface bundle over a circle has pseudo-Anosov holonomy, we obtain a classification of…

Geometric Topology · Mathematics 2007-05-23 Ko Honda , William H. Kazez , Gordana Matic

The homotopical information hidden in a supersymmetric structure is revealed by considering deformations of a configuration manifold. This is in sharp contrast to the usual standpoints such as Connes' programme where a geometrical structure…

Mathematical Physics · Physics 2007-05-23 Serge Maumary , Izumi Ojima

The first goal of this paper is to construct examples of higher dimensional contact manifolds with specific properties. Our main results in this direction are the existence of tight virtually overtwisted closed contact manifolds in all…

Symplectic Geometry · Mathematics 2019-11-01 Fabio Gironella

Different types of nonstandard homology groups based on the various subcomplexes of differential forms are considered as a continuation of the recent authors works. Some of them reflect interesting properties of dynamical systems on the…

Differential Geometry · Mathematics 2007-05-23 S. P. Novikov

By using cobordism theoretic arguments similar to those in the literature on positive scalar curvature metrics we prove the existence of contact structures on 5-dimensional spin manifolds whose fundamental group is a group of odd order (not…

Differential Geometry · Mathematics 2007-05-23 H. Geiges , C. B. Thomas

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…

Symplectic Geometry · Mathematics 2015-11-24 Sheila Sandon

We introduce a new generalization of Gompf nuclei and give applications. We construct infinitely many exotic smooth structures for a large class of compact 4-manifolds with boundary, regarding topological invariants. We prove that a large…

Geometric Topology · Mathematics 2012-02-17 Kouichi Yasui

In a previous paper, we showed that the original definition of cylindrical contact homology, with rational coefficients, is valid on a closed three-manifold with a dynamically convex contact form. However we did not show that this…

Symplectic Geometry · Mathematics 2022-03-30 Michael Hutchings , Jo Nelson

Almost contact manifolds with B-metric are considered. A special linear connection is introduced, which preserves the almost contact B-metric structure on these manifolds. This connection is investigated on some classes of the considered…

Differential Geometry · Mathematics 2012-05-08 Mancho Manev , Miroslava Ivanova

For contact manifolds, it is well-known that the map which assigns to an infinitesimal contact transformation its contact Hamiltonian function is a linear isomorphism, and an explicit local formula for its inverse can be given. In contrast,…

Differential Geometry · Mathematics 2025-09-04 Hoseob Seo

The existence of several exotic phenomena, such as duality and spectral anholonomy is pointed out in one-dimensional quantum wire with a single defect. The topological structure in the spectral space which is behind these phenomena is…

Quantum Physics · Physics 2009-11-07 Taksu Cheon

We develop new techniques in the theory of convex surfaces to prove complete classification results for tight contact structures on lens spaces, solid tori, and T^2 X I. Erratum: In this note we seek to remedy errors which appeared in…

Differential Geometry · Mathematics 2014-11-11 Ko Honda

Given a contact structure on a closed, oriented three-manifold $Y$, we describe an invariant which takes values in the three-manifold's Floer homology $\HFa$. This invariant vanishes for overtwisted contact structures and is non-zero for…

Symplectic Geometry · Mathematics 2007-05-23 Peter Ozsvath , Zoltan Szabo

There is a long standing conjecture in Hamiltonian analysis which claims that there exist at least $n$ geometrically distinct closed characteristics on every compact convex hypersurface in $\R^{2n}$ with $n\ge 2$. Besides many partial…

Symplectic Geometry · Mathematics 2007-05-23 Wei Wang , Xijun Hu , Yiming Long

A real 3-manifold is a smooth 3-manifold together with an orientation preserving smooth involution, which is called a real structure. A real contact 3-manifold is a real 3-manifold with a contact distribution that is antisymmetric with…

Geometric Topology · Mathematics 2023-05-08 Merve Cengiz , Ferit Öztürk

We prove that Bourgeois' contact structures on $M \times \mathbb{T}^{2}$ determined by the supporting open books of a contact manifold $(M, \xi)$ are always tight. The proof is based on a contact homology computation leveraging holomorphic…

Symplectic Geometry · Mathematics 2024-04-26 Russell Avdek , Zhengyi Zhou

We introduce the notion of a pseudo-Anosov contact structure, which admits a type of singular contact form with pseudo-Anosov Reeb flow. We prove that contact homology detects the free homotopy classes of closed orbits of any pseudo-Anosov…

Symplectic Geometry · Mathematics 2026-01-06 Julian Chaidez , Yijie Pan

In this paper, it is proved that under dynamically convex condition, there exist at least $[\frac{n+1}{2}]$ closed Reeb orbits on a closed contact type hypersurface in $T^*S^n$ enclosing the zero section and bounding a simply connected…

Symplectic Geometry · Mathematics 2026-03-10 Huagui Duan , Zihao Qi

This paper provides a topological method for filling contact structures on the connected sums of $S^2\times S^3$. Examples of nonsymplectomorphic strong fillings of homotopy equivalent contact structures with vanishing first Chern class on…

Geometric Topology · Mathematics 2015-06-30 Ahmet Beyaz

In a recent paper of Akhmedov, Etnyre, Mark and Smith, it was shown that there exist infinitely many contact Seifert fibered 3-manifolds each of which admits infinitely many exotic (homeomorphic but pairwise non-diffeomorphic)…

Geometric Topology · Mathematics 2014-05-16 Anar Akhmedov , Burak Ozbagci