On -recurrent hyperbolic Kaehlerian spaces.
Pušić, Nevena (1994)
Publications de l'Institut Mathématique. Nouvelle Série
Similarity:
Displaying similar documents to “On Hb-flat Hyperbolic Kaehlerian Spaces”
On -recurrent hyperbolic Kaehlerian spaces.
Isotropic sections and curvature properties of hyperbolic Kaehlerian manifolds.
Ganchev, Georgi, Borisov, Adriyan (1985)
Publications de l'Institut Mathématique. Nouvelle Série
Similarity:
On fibred Sasakian spaces with vanishing contact Bochner curvature tensor
Kazuhiko Takano (1993)
Colloquium Mathematicae
Similarity:
Complete hypersurfaces with constant scalar curvature in a hyperbolic space.
Shu, Shichang (2007)
Balkan Journal of Geometry and its Applications (BJGA)
Similarity:
Extended Derdziński-Shen theorem for curvature tensors
Carlo Alberto Mantica, Luca Guido Molinari (2012)
Colloquium Mathematicae
Similarity:
We extend a remarkable theorem of Derdziński and Shen, on the restrictions imposed on the Riemann tensor by the existence of a nontrivial Codazzi tensor. We show that the Codazzi equation can be replaced by a more general algebraic condition. The resulting extension applies both to the Riemann tensor and to generalized curvature tensors.
Curvature tensors in dimension four which do not belong to any curvature homogeneous space
Oldřich Kowalski, Friedbert Prüfer (1994)
Archivum Mathematicum
Similarity:
A six-parameter family is constructed of (algebraic) Riemannian curvature tensors in dimension four which do not belong to any curvature homogeneous space. Also a general method is given for a possible extension of this result.
Well posed reduced systems for the Einstein equations
Yvonne Choquet-Bruhat, James York (1997)
Banach Center Publications
Similarity:
We review some well posed formulations of the evolution part of the Cauchy problem of General Relativity that we have recently obtained. We include also a new first order symmetric hyperbolic system based directly on the Riemann tensor and the full Bianchi identities. It has only physical characteristics and matter sources can be included. It is completely equivalent to our other system with these properties.