On pinched manifolds with fundamental group
On Probalistic Commutative Spaces.
On pseudo Ricci-symmetric manifolds.
On radius, systole, and positive Ricci curvature.
On recurrent spaces of first order
On Riemannian 3-manifolds with distinct constant Ricci eigenvalues.
On Riemannian manifolds with ...-maximal diameter and bounded curvature.
On scalar and total scalar curvatures of Riemann-Cartan manifolds
On Sectional Curvature of Indefinite Metrics.
On Sectional Curvature of Indefinite Metrics, II.
On some applications of Bochner-Schoenberg-Eberlein type theorems
On some form determined by a distribution on a Riemannian manifold
On some property of the tangency relation of sets.
On space forms of Grassmann manifolds.
On special Riemannian -manifolds with distinct constant Ricci eigenvalues
The first author and F. Prufer gave an explicit classification of all Riemannian 3-manifolds with distinct constant Ricci eigenvalues and satisfying additional geometrical conditions. The aim of the present paper is to get the same classification under weaker geometrical conditions.
On subharmonic functions and differential geometry in the large.
On the asymptotic geometry of gravitational instantons
We investigate the geometry at infinity of the so-called “gravitational instantons”, i.e. asymptotically flat hyperkähler four-manifolds, in relation with their volume growth. In particular, we prove that gravitational instantons with cubic volume growth are ALF, namely asymptotic to a circle fibration over a Euclidean three-space, with fibers of asymptotically constant length.
On the bochner conformal curvature of Kähler-Norden manifolds
Using the one-to-one correspondence between Kähler-Norden and holomorphic Riemannian metrics, important relations between various Riemannian invariants of manifolds endowed with such metrics were established in my previous paper [19]. In the presented paper, we prove that there is a strict relation between the holomorphic Weyl and Bochner conformal curvature tensors and similarly their covariant derivatives are strictly related. Especially, we find necessary and sufficient conditions for the holomorphic...
On the characteristic function of spaces of constant holomorphic curvature
On the characterizations of flat metrics by the spectrum.