O geometrii laplasiánu. I
O geometrii laplasiánu. II
On -dimensional Riemannian manifolds with positive scalar curvature
In questo lavoro si danno alcuni risultati sugli spettri degli operatori di Laplace per varietà Riemanniane compatte con curvatura scalare positiva e di dimensione . Ad essi si aggiunge una osservazione riguardante la congettura di Yamabe.
On 3-Dimensional Riemannian ...-Spaces.
On a certain class of Riemannian homogeneous spaces
On a class of exact locally conformal cosymplectic manifolds.
On a construction of coordinates at infinity on manifolds with fast curvature decay and maximal volume growth.
On a lower bound for the first eigenvalue of the Laplace operator on a riemannian manifold
On a lower bound of the second eigenvalue of the Laplacian on an Einstein space
On a sufficient condition for conformal parabolicity of a hypersurface.
On a theorem of Fermi
Conformally flat metric is said to be Ricci superosculating with at the point if , , , where is the Ricci tensor. In this paper the following theorem is proved: If is a smooth curve of the Riemannian manifold (without self-crossing(, then there is a neighbourhood of and a conformally flat metric which is the Ricci superosculating with along the curve .
On Almost Blaschke Manifolds I.
On almost cosymplectic manifolds with the structure vector field belonging to the -nullity distribution.
On an integral formula
On Blaschke manifolds and harmonic manifolds
On Cheeger's inequality.
On Circles and Spheres in Riemannian Geometry.
On Compact Riemannian Manifolds with Harmonie Curvature.
On compact solvability of differentials of an elliptic differential complex.
On complete lifts of reductive homogeneous spaces and generalized symmetric spaces