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Lightlike hypersurfaces of metallic semi-Riemannian manifolds

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0 Published in 2018 at "International Journal of Geometric Methods in Modern Physics"

DOI: 10.1142/s0219887818502018

Abstract: In our paper, we introduce and study lightlike hypersurfaces of a metallic semi-Riemannian manifold. We examine some geometric properties of invariant lightlike hypersurfaces. We show that the induced structure on an invariant lightlike hypersurface is… read more here.

Keywords: invariant lightlike; semi riemannian; metallic semi; lightlike hypersurfaces ... See more keywords

Lightlike Hypersurfaces of Almost Productlike Semi-Riemannian Manifolds

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1 Published in 2022 at "Symmetry"

DOI: 10.3390/sym15010077

Abstract: The main purpose of this paper is to investigate lightlike hypersurfaces of almost productlike semi-Riemannian manifolds. For this purpose, screen-semi-invariant, screen-invariant, radical-anti-invariant, and radical-invariant lightlike hypersurfaces of almost productlike semi-Riemannian manifolds are introduced and some… read more here.

Keywords: almost productlike; lightlike hypersurfaces; productlike semi; semi riemannian ... See more keywords