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相关论文: The Weinstein Conjecture for Planar Contact Struct…

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We prove an abstract compactness theorem for a family of generalized Seiberg-Witten equations in dimension three. This result recovers Taubes' compactness theorem for stable flat $\mathbf{P}\mathrm{SL}_2(\mathbf{C})$-connections as well as…

微分几何 · 数学 2022-02-02 Thomas Walpuski , Boyu Zhang

We introduce the notion of $\varepsilon\eta\,$-Einstein $\varepsilon\,$-contact metric three-manifold, which includes as particular cases $\eta\,$-Einstein Riemannian and Lorentzian (para) contact metric three-manifolds, but which in…

微分几何 · 数学 2021-02-02 Ángel Murcia , C. S. Shahbazi

We establish the relationship between folded symplectic forms and convex hypersurface theory in contact topology. As an application, we use convex hypersurface theory to reprove and strengthen the existence result for folded symplectic…

辛几何 · 数学 2024-06-28 Joseph Breen

In this paper, Lie symmetry group method is applied to find the lie point symmetries group of a PDE system that is determined general form of four-dimensional Einstein Walker manifold. Also we will construct the optimal system of…

微分几何 · 数学 2014-08-01 Mehdi Nadjafikhah , Mehdi Jafari

We establish the Giroux correspondence in arbitrary dimensions. As corollaries we (i) give an alternate proof of a result of Giroux-Pardon that states that any Weinstein domain is Weinstein homotopic to one which admits a Weinstein…

辛几何 · 数学 2024-06-28 Joseph Breen , Ko Honda , Yang Huang

Measure contraction property is one of the possible generalizations of Ricci curvature bound to more general metric measure spaces. In this paper, we discover sufficient conditions for a three dimensional contact subriemannian manifold to…

微分几何 · 数学 2014-02-20 Andrei Agrachev , Paul Lee

We show that every quasiconformal contact foliation supports an invariant metric and characterise such foliations by the dynamical property of $C^1$-equicontinuity. We prove that a generalisation of the Weinstein conjecture holds for…

动力系统 · 数学 2023-06-29 Douglas Finamore

Motivated by Poincar\'e's orbits going to infinity in the (restricted) three-body (see [26] and [6]), we investigate the generic existence of heteroclinic-like orbits in a neighbourhood of the critical set of a $b$-contact form. This is…

辛几何 · 数学 2022-03-15 Eva Miranda , Cédric Oms , Daniel Peralta-Salas

This paper proves the Giroux Correspondence in dimension three using Heegaard splittings of contact manifolds. In two of the authors earlier paper they proved the Giroux Correspondence for tight contact 3-manifolds via convex Heegaard…

几何拓扑 · 数学 2026-02-19 Joan Licata , Matthias Scharitzer , Vera Vértesi

We develop a method for constructing standard complexes which turns easy the calculation of their algebraic invariants and, as well, the precise evaluation of whether these complexes are embeddable or not in a 3-manifold. This method…

综合数学 · 数学 2016-06-06 Rui Almeida

The main purpose of this article is to classify contact structures on some 3-manifolds, namely lens spaces, most torus bundles over a circle, the solid torus, and the thickened torus T^2 x [0,1]. This classification completes earlier work…

几何拓扑 · 数学 2009-10-31 Emmanuel Giroux

The elliptic 3-manifolds are the closed 3-manifolds that admit a Riemannian metric of constant positive curvature, that is, those that have finite fundamental group. The (Generalized) Smale Conjecture asserts that for any elliptic…

几何拓扑 · 数学 2011-10-25 Sungbok Hong , John Kalliongis , Darryl McCullough , J. H. Rubinstein

We construct four-dimensional symplectic cobordisms between contact three-manifolds generalizing an example of Eliashberg. One key feature is that any handlebody decomposition of one of these cobordisms must involve three-handles. The other…

几何拓扑 · 数学 2009-03-02 David T Gay

We prove that on closed Riemannian manifolds with infinite abelian, but not cyclic, fundamental group, any isometry that is homotopic to the identity possesses infinitely many invariant geodesics. We conjecture that the result remains true…

微分几何 · 数学 2015-05-13 Marco Mazzucchelli

Gorenstein liaison seems to be the natural notion to generalize to higher codimension the well-known results about liaison of varieties of codimension~2 in projective space. In this paper we study points in ${\mathbb P}^3$ and curves in…

代数几何 · 数学 2007-05-23 Robin Hartshorne

In this article, we answer-for a class of magnetic systems-a question now known as the contact type conjecture, whose origin trace back to the 1998 work of Contreras, Iturriaga, Paternain, and Paternain. For a broad class of magnetic…

辛几何 · 数学 2026-04-21 Lina Deschamps , Levin Maier , Tom Stalljohann

This is the announcement of an alternative approach to the 3-dimensional Poincar\'e Conjecture, different from Perelman's big and spectacular breakthrough. No claim concerning the other parts of the Thurston Geometrization Conjecture, come…

几何拓扑 · 数学 2007-05-23 Valentin Poenaru

We construct the Seiberg-Witten theory on 3-manifolds with Euclidean ends (connected sums of $\R^3$ and a compact manifold) with perturbations which approximate $*dx_3$ at infinity, and describe the structure of the moduli spaces. The setup…

dg-ga · 数学 2008-02-03 Yi-Jen Lee

We prove equality of the vector field (iterated commutator) type and the regular contact type, which together with the Bloom theorem on equality of the Levi-form type and the regular contact type provides a complete solution of a long…

复变函数 · 数学 2019-02-28 Xiaojun Huang , Wanke Yin

We briefly recall a fundamental exterior differential system introduced by the author and then apply it to the case of three dimensions. Here we find new global tensors and intrinsic invariants of oriented Riemaniann 3-manifolds. The system…

微分几何 · 数学 2018-02-21 Rui Albuquerque