Some Properties of the Curvature Operator of a Riemannian Manifold.
Some Properties of the Fundamental Group of a Fuchsian Manifold.
Some properties of the locally conformal Kähler manifold
Some recent developments in the theory of properly embedded minimal surfaces in
Some Remarks on a Class of Submanifolds in Space Forms of Non-Negative Curvature.
Some remarks on almost Kenmotsu manifolds.
Some remarks on conformally symmetric Riemannian spaces
Some remarks on Dvoretzky's theorem on almost spherical sections of convex bodies
Some remarks on -actions with sections
Some remarks on isotropic submanifolds.
Some remarks on Lie flows.
The first part of this paper is concerned with geometrical and cohomological properties of Lie flows on compact manifolds. Relations between these properties and the Euler class of the flow are given.The second part deals with 3-codimensional Lie flows. Using the classification of 3-dimensional Lie algebras we give cohomological obstructions for a compact manifold admits a Lie flow transversely modeled on a given Lie algebra.
Some remarks on polynomial structures
Some remarks on quaternion-Hermitian manifolds
Nearly-quaternionic Kähler manifolds of dimension at least are shown to be quaternionic Kähler. Restrictions on the covariant derivative of the fundamental four-form of a semi-quaternionic Kähler are also found.
Some remarks on surfaces in the 4-dimensional Euclidean space
Some remarks on symplectic actions of compact groups.
Some remarks on the Kozlowski-Simon conjecture for affine ovaloids
In this note, we are concerned with the Kozlowski-Simon conjecture on ovaloids and prove that it is correct under additional conditions.
Some remarks on the weak maximum principle.
We obtain a maximum principle at infinity for solutions of a class of nonlinear singular elliptic differential inequalities on Riemannian manifolds under the sole geometrical assumptions of volume growth conditions. In the case of the Laplace-Beltrami operator we relate our results to stochastic completeness and parabolicity of the manifold.
Some results about Mastrogiacomo cohomology.
Some results for generalized cochains.
Some results on anti-invariant submanifolds of a trans-Sasakian manifold.