On surfaces and their contours.
On surfaces in with constant Gauss curvature
On surfaces with constant mean curvature
On symmetric Riemannian manifolds.
On Symmetrie Submanifolds of Spaces of Constant Curvature.
On symmetries and constants of motion in Hamiltonian systems with nonholonomic constraints
On symplectic fillings.
On tensor fields semiconjugated with torse-forming vector fields
The paper deals with tensor fields which are semiconjugated with torse-forming vector fields. The existence results for semitorse-forming vector fields and for convergent vector fields are proved.
On tensor functions whose gradients have some skew-symmetries
Let be a real inner product space of any dimension; and let be a -map relating any two tensor spaces on . We study the consequences imposed on the form of this function by the condition that its gradient should be skew-symmetric with respect to some pairs of indexes. Any such a condition is written as a system of linear partial differential equations, with constant coefficients, which is symmetric with respect to certain couples of independent variables. The solutions of these systems appear...
On the absolute differentiation of geometric object fields
On the affine convexity of convex curves and hypersurfaces.
On the affine normal
On the affine rectification of convex curves.
On the algebraic hull of an automorphism group of a principal bundle.
On the algebraic structure on the jet prolongations of fibred manifolds
On the analyticity of minimal surfaces at movable boundaries of prescribed length.
On the approximation of functions on a Hodge manifold
If is a Hodge manifold and we construct a canonical sequence of functions such that in the topology. These functions have a simple geometric interpretation in terms of the moment map and they are real algebraic, in the sense that they are regular functions when is regarded as a real algebraic variety. The definition of is inspired by Berezin-Toeplitz quantization and by ideas of Donaldson. The proof follows quickly from known results of Fine, Liu and Ma.
On the arc length of parametric cubic curves.
On the Arnold conjecture for weakly monotone symplectic manifolds.
On the asymptotic behavior of Dirichlet problems in a riemannian manifold less small random holes