International audienceDegenerate submanifolds of pseudo-Riemannian manifolds are quite difficult to study because there is no prefered connection when the submanifold is not totally geodesic. For the particular case of degenerate totally umbilical hypersurfaces, we show that there are "Weyl" connections adapted to the induced structure on the hypersurface. We begin the study of these with their holonomy
AbstractWe classify the semi-Riemannian submersions from a pseudo-hyperbolic space onto a Riemannian...
We prove the existence of compact pseudo-Riemannian manifolds with parallel Weyl tensor which are ne...
Abstract. We study lightlike hypersurfaces of a semi-Riemannian space form M̃(c) admitting a semi-sy...
soumisWe study Weyl structures on lightlikes hypersurfaces endowed with a conformal structure of cer...
summary:We study lightlike hypersurfaces $M$ of an indefinite Kaehler manifold $\bar {M}$ of quasi-c...
AbstractThe authors study the geometry of lightlike hypersurfaces on pseudo-Riemannian manifolds (M,...
Proponemos un nuevo enfoque al estudio de las subvariedades luz, cuyo estudio hasta el momento depen...
We show that a conformal connection on a closed oriented surface Σ of negative Euler characteristic ...
It has been shown that a non-degenerate totally umbilical constant mean curvature hypersurface of a ...
In the present paper, we introduce screen almost semi-invariant (SASI) lightlike submanifolds of ind...
In this thesis, we study "degenerate" (or "null") submanifolds of pseudo-riemannian manifolds, for w...
We show that statistical and semi-Weyl structures with torsion are invariant under conformal-project...
Recently, this author studied lightlike hypersurfaces of an indefinite Kaehler manifold endowed wit...
We study unparametrized conformal circles, or called conformal geodesics, study diffeomorphisms mapp...
Abstract. We study lightlike submanifolds M of a semi-Riemannian manifold M̄ with a semi-symmetric n...
AbstractWe classify the semi-Riemannian submersions from a pseudo-hyperbolic space onto a Riemannian...
We prove the existence of compact pseudo-Riemannian manifolds with parallel Weyl tensor which are ne...
Abstract. We study lightlike hypersurfaces of a semi-Riemannian space form M̃(c) admitting a semi-sy...
soumisWe study Weyl structures on lightlikes hypersurfaces endowed with a conformal structure of cer...
summary:We study lightlike hypersurfaces $M$ of an indefinite Kaehler manifold $\bar {M}$ of quasi-c...
AbstractThe authors study the geometry of lightlike hypersurfaces on pseudo-Riemannian manifolds (M,...
Proponemos un nuevo enfoque al estudio de las subvariedades luz, cuyo estudio hasta el momento depen...
We show that a conformal connection on a closed oriented surface Σ of negative Euler characteristic ...
It has been shown that a non-degenerate totally umbilical constant mean curvature hypersurface of a ...
In the present paper, we introduce screen almost semi-invariant (SASI) lightlike submanifolds of ind...
In this thesis, we study "degenerate" (or "null") submanifolds of pseudo-riemannian manifolds, for w...
We show that statistical and semi-Weyl structures with torsion are invariant under conformal-project...
Recently, this author studied lightlike hypersurfaces of an indefinite Kaehler manifold endowed wit...
We study unparametrized conformal circles, or called conformal geodesics, study diffeomorphisms mapp...
Abstract. We study lightlike submanifolds M of a semi-Riemannian manifold M̄ with a semi-symmetric n...
AbstractWe classify the semi-Riemannian submersions from a pseudo-hyperbolic space onto a Riemannian...
We prove the existence of compact pseudo-Riemannian manifolds with parallel Weyl tensor which are ne...
Abstract. We study lightlike hypersurfaces of a semi-Riemannian space form M̃(c) admitting a semi-sy...