On some Riemannian manifolds admitting a metric semi-symmetric connection
On some special vector fields.
On some strictly almost analytic vector fields in tangent bundles
On some type of curvature conditions
In this paper we present a review of recent results on semi-Riemannian manifolds satisfying curvature conditions of pseudosymmetry type.
On some types of slant curves in contact pseudo-Hermitian 3-manifolds
We study slant curves in contact Riemannian 3-manifolds with pseudo-Hermitian proper mean curvature vector field and pseudo-Hermitian harmonic mean curvature vector field for the Tanaka-Webster connection in the tangent and normal bundles, respectively. We also study slant curves of pseudo-Hermitian AW(k)-type.
On space-times with commutative parings of vector fields.
On special almost geodesic mappings of type of spaces with affine connection
N. S. Sinyukov [5] introduced the concept of an almost geodesic mapping of a space with an affine connection without torsion onto and found three types: , and . The authors of [1] proved completness of that classification for .By definition, special types of mappings are characterized by equations where is the deformation tensor of affine connections of the spaces and .In this paper geometric objects which preserve these mappings are found and also closed classes of such spaces...
On special Berwald metrics.
On "special" fibred coordinates for general and classical connections
Using a general connection Γ on a fibred manifold p:Y → M and a torsion free classical linear connection ∇ on M, we distinguish some “special” fibred coordinate systems on Y, and then we construct a general connection on Fp:FY → FM for any vector bundle functor F: ℳ f → of finite order.
On special hypersurface of a Finsler space with the metric .
On submanifolds in a space with Sasakian 3-structure
On submanifolds of two manifolds.
On submanifolds with nonpositive extrinsic curvature.
On subprojective transformations.
On subspaces of C-reducible, semi C-reducible, s3-like and s4-like spaces
On subspaces of Riemann-Otsuki space.
On Super Quasi Einstein Manifold
On symmetric Riemannian manifolds.
On tensor fields semiconjugated with torse-forming vector fields
The paper deals with tensor fields which are semiconjugated with torse-forming vector fields. The existence results for semitorse-forming vector fields and for convergent vector fields are proved.
On the Bianchi Identities.