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It is considered a differentiable manifold equipped with a pseudo-Riemannian metric and an almost contact 3-struc\-ture so that an almost contact metric structure and two almost contact B-metric structures are generated. There are…

Differential Geometry · Mathematics 2017-11-21 Mancho Manev

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

Establishing detailed relationships between transnormal systems of different types and their behaviors under covering maps, this paper presents a classification of transnormal systems on compact 3-manifolds in the sense of equivalence. For…

Differential Geometry · Mathematics 2025-03-25 Minghao Li , Ling Yang

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 classify contact manifolds $(M,\mathcal D)$ which are homogeneous under a connected semisimple Lie group $G$, and symmetric in the sense that there exists a contactomorphism of $(M,\mathcal D)$ normalizing $G$, fixing a point $o$ in $M$…

Differential Geometry · Mathematics 2020-03-03 Dmitri Alekseevsky , Claudio Gorodski

This survey explores the geometry of three-dimensional Anosov flows from the perspective of contact and symplectic geometry, following the work of Mitsumatsu, Eliashberg-Thurston, Hozoori, and the author. We also present a few original…

Symplectic Geometry · Mathematics 2025-03-19 Thomas Massoni

In this paper, we classify the three-dimensional contact partially hyperbolic diffeomorphisms whose stable, unstable and central distributions are smooth, and whose non-wandering set equals the whole manifold. We prove that up to a finite…

Differential Geometry · Mathematics 2021-01-11 Martin Mion-Mouton

We prove a classification theorem for transitive Anosov and pseudo-Anosov flows on closed 3-manifolds, up to orbit equivalence. In many cases, flows on a 3-manifold $M$ are completely determined by the set of free homotopy classes of their…

Dynamical Systems · Mathematics 2022-11-22 Thomas Barthelmé , Steven Frankel , Kathryn Mann

Families of linear connections are constructed on almost contact manifolds with Norden metric. An analogous connection to the symmetric Yano connection is obtained on a normal almost contact manifold with Norden metric and closed structural…

Differential Geometry · Mathematics 2011-04-29 Marta Teofilova

We prove that the universal covering of a complete locally symmetric normal metric contact pair manifold is a Calabi-Eckmann manifold. Moreover we show that a complete, simply connected, normal metric contact pair manifold such that the…

Differential Geometry · Mathematics 2011-10-31 G. Bande , D. E. Blair

In this text we (re)-tell the theory of pseudo-Anosov flows on 3-manifolds with the orbit space as the central character; via a streamlined framework called {\em Anosov-like group actions}. This brings a simplified and unified perspective,…

Dynamical Systems · Mathematics 2026-02-16 Thomas Barthelmé , Kathryn Mann

We consider Anosov flows on closed 3-manifolds preserving a volume form $\Omega$. Following Dyatlov and Zworski (2017) we study spaces of invariant distributions with values in the bundle of exterior forms whose wavefront set is contained…

Dynamical Systems · Mathematics 2021-03-03 Mihajlo Cekić , Gabriel P. Paternain

Let $M$ be a closed 3-manifold which admits an Anosov flow. In this paper we develop a technique for constructing partially hyperbolic representatives in many mapping classes of $M$. We apply this technique both in the setting of geodesic…

Dynamical Systems · Mathematics 2020-11-18 Christian Bonatti , Andrey Gogolev , Andy Hammerlindl , Rafael Potrie

In this paper we find the first infinite family of hyperbolic 3-manifolds which admit tight contact structures but do not have any tight projectively Anosov flow. These manifolds are obtained as rational surgeries on the figure eight knot.

Geometric Topology · Mathematics 2025-02-07 Isacco Nonino

We provide a combinatorial presentation of the set F of 3-dimensional generic flows, namely the set of pairs (M,v) with M a compact oriented 3-manifold and v a nowhere-zero vector field on M having generic behaviour along the boundary of M,…

Geometric Topology · Mathematics 2015-11-03 Carlo Petronio

A foliation is R-covered if the leaf space in the universal cover is homeomorphic to the real numbers. We show that, up to topological conjugacy, there are at most two pseudo-Anosov flows transverse to such a foliation. If there are two,…

Geometric Topology · Mathematics 2007-05-23 Sergio R Fenley

We investigate certain natural connections between subriemannian geometry and hyperbolic dynamical systems. In particular, we study dynamically defined horizontal distributions which split into two integrable ones and ask: how is the energy…

Differential Geometry · Mathematics 2015-01-15 Slobodan N. Simić

We show that there exists a transverse link in the standard contact structures on the 3-sphere such that all contact 3-manifolds are contact branched covers over this transverse link.

Geometric Topology · Mathematics 2022-02-21 Roger Casals , John B. Etnyre

Any closed, oriented, hyperbolic three-manifold with nontrivial second homology has many quasigeodesic flows, where quasigeodesic means that flow lines are uniformly efficient in measuring distance in relative homotopy classes. The flows…

Geometric Topology · Mathematics 2009-09-25 Sérgio Fenley , Lee Mosher

Cylindrical contact homology is a comparatively simple incarnation of symplectic field theory whose existence and invariance under suitable hypotheses was recently established by Hutchings and Nelson. We study this invariant for a general…

Symplectic Geometry · Mathematics 2022-05-04 Sebastian Haney , Thomas E. Mark