On a class of exact locally conformal cosymplectic manifolds.
Tensor products of spherical and equivariant immersions.
Conditions on the conharmonic curvature tensor of Kähler hypersurfaces in complex space forms.
The semiring of immersions of manifolds.
Pseudo-symmetry curvature conditions on hypersurfaces of Euclidean spaces and on Kahlerian manifolds
3-type Curves on Hyperboloids of Revolution and Cones of Revolution
Relations between intrinsic and extrinsic curvatures
Curves in Lorentzian spaces
The notion of ``hyperbolic'' angle between any two time-like directions in the Lorentzian plane was properly defined and studied by Birman and Nomizu [1,2]. In this article, we define the notion of hyperbolic angle between any two non-null directions in and we define a measure on the set of these hyperbolic angles. As an application, we extend Scofield's work on the Euclidean curves of constant precession [9] to the Lorentzian setting, thus expliciting space-like curves in whose natural equations...
Conditions on the projective curvature tensor of hypersurfaces in euclidian space
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