Complément à la théorie d'Arnold de l'indice de Maslov
Complément à la théorie d'Arnold de l'indice de Maslov
Complete Kähler-Einstein Metrics on Bounded Domains Locally of Finite Volume at Some Boundary Points.
Complete lift of a structure satisfying .
Complete Riemannian manifolds admitting a pair of Einstein-Weyl structures
We prove that a connected Riemannian manifold admitting a pair of non-trivial Einstein-Weyl structures with constant scalar curvature is either Einstein, or the dual field of is Killing. Next, let be a complete and connected Riemannian manifold of dimension at least admitting a pair of Einstein-Weyl structures . Then the Einstein-Weyl vector field (dual to the -form ) generates an infinitesimal harmonic transformation if and only if is Killing.
Complex structures on
Data una varietà Riemanniana orientata , il fibrato principale di basi ortonormali positive su ha una parallelizzazione canonica dipendente dalla connessione di Levi-Civita. Questo fatto suggerisce la definizione di una classe molto naturale di strutture quasi-complesse su . Dopo le necessarie definizioni, discutiamo qui l'integrabilità di queste strutture, esprimendola in termini della struttura Riemanniana .
Complex structures on tangent bundles of Riemannian manifolds.
Complex structures on the Iwasawa manifold.
Conformal and related changes of metric on the product of two almost contact metric manifolds.
This paper studies conformal and related changes of the product metric on the product of two almost contact metric manifolds. It is shown that if one factor is Sasakian, the other is not, but that locally the second factor is of the type studied by Kenmotsu. The results are more general and given in terms of trans-Sasakian, α-Sasakian and β-Kenmotsu structures.
Conformal curvature for the normal bundle of a conformal foliation
It is proved that the normal bundle of a distribution on a riemannian manifold admits a conformal curvature if and only if is a conformal foliation. Then is conformally flat if and only if vanishes. Also, the Pontrjagin classes of can be expressed in terms of .
Conformal Dirichlet-Neumann maps and Poincaré-Einstein manifolds.
Conformal Infinitesimal Transformations Of Almost Paracontact Metric Structures
Conformal Killing-Yano tensors on manifolds with mixed 3-structures.
Conformal vector fields on tangent bundle of Finsler manifolds.
Conformally flat contact metric manifolds with .
Conformally flat Lorentzian three-spaces with various properties of symmetry and homogeneity
We study conformally flat Lorentzian three-manifolds which are either semi-symmetric or pseudo-symmetric. Their complete classification is obtained under hypotheses of local homogeneity and curvature homogeneity. Moreover, examples which are not curvature homogeneous are described.
Conformally flat pseudo-symmetric spaces of constant type
We give the complete classification of conformally flat pseudo-symmetric spaces of constant type.
Conformally flat semi-symmetric spaces
We obtain the complete classification of conformally flat semi-symmetric spaces.
Connections on -symplectic manifolds.
Connections partially adapted to a metric -structure