Topologie de contact en dimension 3
Topologie du feuilletage fortement stable
Soient une variété de Hadamard de courbure et un groupe d’isométries non élémentaire. Nous montrons qu’il y a équivalence entre la non-arithméticité du spectre des longueurs de , le mélange topologique du flot géodésique et l’existence d’une feuille dense pour le feuilletage fortement stable.
Topologie symplectique, convexité holomorphe et structures de contact
Topology and geometry of complete submanifolds in euclidean spaces
This paper is a survey of results on topological structures and curvature structures of complete submanifolds in a Euclidean space.
Torelli theorems for Kähler K3 surfaces
Tores finslériens sans points conjugués
Toric Hermitian surfaces and almost Kähler structures
The aim of this paper is to investigate the class of compact Hermitian surfaces (M,g,J) admitting an action of the 2-torus T² by holomorphic isometries. We prove that if b₁(M) is even and (M,g,J) is locally conformally Kähler and χ(M) ≠ 0 then there exists an open and dense subset U ⊂ M such that is conformally equivalent to a 4-manifold which is almost Kähler in both orientations. We also prove that the class of Calabi Ricci flat Kähler metrics related with the real Monge-Ampère equation is a...
Toric hyperkähler varieties.
Toroidal Lie group actions on compact Riemannian manifolds and their relations to the fibering problem.
Torsion and closed geodesics on complex hyperbolic manfolds.
Torsion and the second fundamental form for distributions
The second fundamental form of Riemannian geometry is generalised to the case of a manifold with a linear connection and an integrable distribution. This bilinear form is generally not symmetric and its skew part is the torsion. The form itself is closely related to the shape map of the connection. The codimension one case generalises the traditional shape operator of Riemannian geometry.
Torsion, curvature and deflection -tensors on .
Torsion Free Connections, Topology, Geometry and Differential Operators on Smooth Manifolds
Torsion Tensor and Critical Metrics on Contact (2n + 1)-Manifolds.
Torsion von Minimalflächen.
Torsions of connections on higher order cotangent bundles
By a torsion of a general connection on a fibered manifold we understand the Frölicher-Nijenhuis bracket of and some canonical tangent valued one-form (affinor) on . Using all natural affinors on higher order cotangent bundles, we determine all torsions of general connections on such bundles. We present the geometrical interpretation and study some properties of the torsions.
Torsions of connections on time-dependent Weil bundles
We introduce the concept of a dynamical connection on a time-dependent Weil bundle and we characterize the structure of dynamical connections. Then we describe all torsions of dynamical connections.
Total Absolute Curvature of Submanifolds in Compact Symmetric Spaces of Rank One.
Total bending of vector fields on Riemannian manifolds.
Total connections in Lie groupoids
A total connection of order in a Lie groupoid over is defined as a first order connections in the -st jet prolongations of . A connection in the groupoid together with a linear connection on its base, ie. in the groupoid , give rise to a total connection of order , which is called simple. It is shown that this simple connection is curvature-free iff the generating connections are. Also, an -th order total connection in defines a total reduction of the -th prolongation of to ....