On the ME-manifold in --UFT and its conformal change.
On the motion of a non-homogeneous ideal incompressible fluid in an external force field
On the notion of Jacobi fields in constrained calculus of variations
In variational calculus, the minimality of a given functional under arbitrary deformations with fixed end-points is established through an analysis of the so called second variation. In this paper, the argument is examined in the context of constrained variational calculus, assuming piecewise differentiable extremals, commonly referred to as extremaloids. The approach relies on the existence of a fully covariant representation of the second variation of the action functional, based on a family of...
On the nullity index of isometric immersions of Kähler manifolds
On the paradox of two domains in Schwarzschild exterior solution
On the projective motion in a projective Finsler space of recurrent curvature
On the projective structure of a real hypersurface in C...
On the Pseudo-Conformal Geometry of a Kähler Manifold.
On the quadric CMC spacelike hypersurfaces in Lorentzian space forms
We deal with complete spacelike hypersurfaces immersed with constant mean curvature in a Lorentzian space form. Under the assumption that the support functions with respect to a fixed nonzero vector are linearly related, we prove that such a hypersurface must be either totally umbilical or isometric to a hyperbolic cylinder of the ambient space.
On the quasi-conformal curvature tensor of a Kenmotsu manifold.
On the rectifiability condition of a second order ordinary differential equation.
On the rectilinear extremals of geodesics in geometry.
On the reduction formulas
On the Regularity of Alexandrov Surfaces with Curvature Bounded Below
In this note, we prove that on a surface with Alexandrov’s curvature bounded below, the distance derives from a Riemannian metric whose components, for any p ∈ [1, 2), locally belong to W1,p out of a discrete singular set. This result is based on Reshetnyak’s work on the more general class of surfaces with bounded integral curvature.
On The Relation Between Connection And Sprays.
On the Ricci Tensor of a real hypersurface of quaternionic hyperbolic space.
On the Ricci tensor of real hypersurfaces of quaternionic projective space.
On the Riemannian curvature tensor of an almost-product manifold
On the space-time permeated by a viscous, compressible, thermally conducting, self-gravitating fluid with infinite electrical conductivity and constant magnetic permeability
On the submanifolds of the Riemannian manifolds.