4 citations · 6 across the 4 of their papers we have counts for
4 papers
Conformal Killing forms on complete Riemannian manifolds with nonpositive curvature operator
Sergey Stepanov, Irina Tsyganok
We give a classification for connected complete locally irreducible Riemannian manifolds with nonpositive curvature operator, which admit a nonzero closed or co-closed conformal Ki…
A remark on the Laplacian operator which acts on symmetric tensors
S. E. Stepanov, I. I. Tsyganok, I. A. Aleksandrova
More than forty years ago J. H. Samson has defined the Laplacian acting on the space of symmetric covariant -tensors on an -dimensional Riemannian manifold …
On a Laplacian which acts on symmetric tensors
J. Mikesh, S. E. Stepanov, I. I. Tsyganok
In the present paper we show properties of a little-known Laplacian operator acting on symmetric tensors. This operator is an analogue of the well known Hodge-de Rham Laplacian whi…
The Seven Classes of the Einstein Equations
Sergey E. Stepanov, Irina I. Tsyganok
In current paper we refer to the geometrical classification of the Einstein equations which has been developed by one of the authors of this paper. This classification was based on…