On transverse structures of foliations
On two natural Riemannian metrics on a tube.
On Uniqueness Theoremsfor Ricci Tensor
In Riemannian geometry the prescribed Ricci curvature problem is as follows: given a smooth manifold and a symmetric 2-tensor , construct a metric on whose Ricci tensor equals . In particular, DeTurck and Koiso proved the following celebrated result: the Ricci curvature uniquely determines the Levi-Civita connection on any compact Einstein manifold with non-negative section curvature. In the present paper we generalize the result of DeTurck and Koiso for a Riemannian manifold with non-negative...
On Univalent Harmonic Maps Between Surfaces.
On values of the Gauss map of complete minimal surfaces in R3.
On Variations of Metrics.
On Veronese surfaces
On Veronese-Borůvka spheres
In this paper, history of reserches for minimal immersions from constant Gaussian curvature 2-manifolds into space forms is explained with special emphasis of works of O. Borůvka. Then recent results for the corresponding probrem to classify minimal immersions of such surfaces in complex space forms are discussed.
On Warped Product Manifolds Satisfying some Curvature Condition of Pseudosymmetric Type
On weak symmetries of Kähler manifolds.
On weakly and pseudo concircular symmetric structures on a Riemannian manifold
In this paper, we examine the properties of hypersurfaces of weakly and pseudo concircular symmetric manifolds and we give an example for these manifolds.
On weakly cyclic Ricci symmetric manifolds
We introduce a type of non-flat Riemannian manifolds called weakly cyclic Ricci symmetric manifolds and study their geometric properties. The existence of such manifolds is shown by several non-trivial examples.
On weakly harmonic maps from Finsler to riemannian manifolds
On weakly projective symmetric manifolds.
On weakly symmetric and special weakly Ricci symmetric Lorentzian -Kenmotsu manifolds.
On weakly symmetric and weakly Ricci-symmetric -contant manifolds.
On weakly symmetric manifolds with a type of semi-symmetric non-metric connection
The object of the present paper is to study weakly symmetric manifolds admitting a type of semi-symmetric non-metric connection.
On weakly symmetric spacetimes
On Weakly -Symmetric Manifolds
The object of the present paper is to study weakly -symmetric manifolds and its decomposability with the existence of such notions. Among others it is shown that in a decomposable weakly -symmetric manifold both the decompositions are weakly Ricci symmetric.
On weakly -symmetric Kenmotsu Manifolds
The object of the present paper is to study weakly -symmetric and weakly -Ricci symmetric Kenmotsu manifolds. It is shown that weakly -symmetric and weakly -Ricci symmetric Kenmotsu manifolds are -Einstein.