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Related papers: Contact geometry and the Poincar\'e conjecture

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We introduce the notion of contact Ricci flow associated with the Reeb vector field. Using it, we give a simple proof of the Poincare conjecture.

Differential Geometry · Mathematics 2012-01-18 Jong Taek Cho

We consider contact foliations: objects which generalise to higher dimensions the flow of the Reeb vector field on contact manifolds. We list a number of properties of such foliations, and propose two conjectures about the topological types…

Symplectic Geometry · Mathematics 2023-05-04 Douglas Finamore

We discuss some of the key ideas of Perelman's proof of Poincar\'e's conjecture via the Hamilton program of using the Ricci flow, from the perspective of the modern theory of nonlinear partial differential equations.

Differential Geometry · Mathematics 2007-05-23 Terence Tao

In this paper, we provide an essentially self-contained and detailed account of the fundamental works of Hamilton and the recent breakthrough of Perelman on the Ricci flow and their application to the geometrization of three-manifolds. In…

Differential Geometry · Mathematics 2007-05-23 Huai-Dong Cao , Xi-Ping Zhu

In this paper, we provide new and simpler proofs of two theorems of Gluck and Harrison on contact structures induced by great circle or line fibrations. Furthermore, we prove that a geodesic vector field whose Jacobi tensor is parallel…

Symplectic Geometry · Mathematics 2024-03-20 Tilman Becker

In this expository article, we introduce the topological ideas and context central to the Poincare Conjecture. Our account is intended for a general audience, providing intuitive definitions and spatial intuition whenever possible. We…

History and Overview · Mathematics 2011-01-04 Scott D. Kominers

We develop methods for studying the smooth closing lemma for Reeb flows in any dimension using contact homology. As an application, we prove a conjecture of Irie, stating that the strong closing lemma holds for Reeb flows on ellipsoids. Our…

Symplectic Geometry · Mathematics 2022-11-08 Julian Chaidez , Ipsita Datta , Rohil Prasad , Shira Tanny

In this paper we prove the existence of infinitely many closed Reeb orbits for a certain class of contact manifolds. This result can be viewed as a contact analogue of the Hamiltonian Conley conjecture. The manifolds for which the contact…

Symplectic Geometry · Mathematics 2014-07-08 Viktor L. Ginzburg , Basak Z. Gurel , Leonardo Macarini

We show that any co-oriented closed contact manifold of dimension at least five admits a contact form such that the contact volume is arbitrarily small but the Reeb flow admits a global hypersurface of section with the property that the…

Symplectic Geometry · Mathematics 2021-12-03 Murat Sağlam

Given a contact 3-manifold we consider the problem of when a given function can be realized as the Ricci curvature of a Reeb vector field for the contact structure. We will use topological tools to show that every admissible function can be…

Differential Geometry · Mathematics 2021-04-20 Surena Hozoori

We draw connections between contact topology and Maxwell fields in vacuo on 3-dimensional closed Riemannian submanifolds in 4-dimensional Lorentzian manifolds. This is accomplished by showing that contact topological methods can be applied…

Mathematical Physics · Physics 2024-09-17 Shin-itiro Goto

After observing that the well-known convexity theorems of symplectic geometry also hold for compact contact manifolds with an effective action of a torus whose Reeb vector field corresponds to an element of the Lie algebra of the torus, we…

Differential Geometry · Mathematics 2009-10-31 Charles P. Boyer , Krzysztof Galicki

A short, fairly self-contained proof is given of the Poincar\'e Conjecture. In the previous version there was an error on Page 8. This gap has now been filled.

General Mathematics · Mathematics 2025-09-26 M. J. Dunwoody

We show that an overtwisted contact structure on a closed, oriented 3-manifold can be defined by a contact form having a Bott-integrable Reeb flow if and only if the Poincar\'e dual of its Euler class is represented by a graph link.

Symplectic Geometry · Mathematics 2026-03-31 Hansjörg Geiges , Jakob Hedicke , Murat Sağlam

We prove the existence of periodic orbits for steady $C^\omega$ Euler flows on all Riemannian solid tori. By using the correspondence theorem from part I of this series, we reduce the problem to the Weinstein Conjecture for solid tori. We…

Symplectic Geometry · Mathematics 2007-05-23 John Etnyre , Robert Ghrist

We survey recent progress on the Greenfield-Wallach and Katok conjectures on globally hypoelliptic and cohomology free vector fields and derive a proof of the conjectures in dimension three. The argument is primarily based on recent work of…

Dynamical Systems · Mathematics 2007-06-28 Giovanni Forni

We use that the $n$-sphere for $n\geq 2$ is simply-connected to prove the Poincar\'e-Birkhoff-Witt Theorem.

Rings and Algebras · Mathematics 2018-01-23 Michael Eastwood

Motivated by the Hamilton's Ricci flow, we define the homogeneous flow of a parallelizable manifold and show the long time existence and uniqueness of its solutions on $[0,\infty).$ Using this flow, we outline a simple proof of the Poincare…

Differential Geometry · Mathematics 2014-05-01 Ercüment Ortaçgil

This memoire consists of two main results. In the first one we describe Ricci flow theory and we give an educative way for proving Elliptization Conjecture and then we prove Poincare conjecture which is the second proof of Perelman for…

Differential Geometry · Mathematics 2017-06-20 Hassan Jolany

We consider Reeb flows on the tight $3$-sphere admitting a pair of closed orbits forming a Hopf link. If the rotation numbers associated to the transverse linearized dynamics at these orbits fail to satisfy a certain resonance condition…

Dynamical Systems · Mathematics 2014-04-03 Umberto Hryniewicz , Al Momin , Pedro A. S. Salomão
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