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math.DG2007
Einstein-Weyl structures on lightike hypersurfaces
Cyriaque Atindogbe, Lionel Bérard Bergery
We study Weyl structures on lightlikes hypersurfaces endowed with a conformal structure of certain type and specific screen distribution: the Weyl screen structures. We investigate…
math.DG2007
A note on conformal connections on lightlike hypersurfaces
Cyriaque Atindogbe, Lionel Bérard Bergery
Degenerate 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 pa…
math.DG2007
-tensors on lightlike hypersurfaces
Cyriaque Atindogbe, Lionel Bérard Bergery
This paper introduces $\anabla$-tensors on lightlike hypersurfaces of signature , and investigates on their properties in connection with the null geom…