Reduction of the codimension for lightli
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Cyriaque Atindogbe; Jean-Pierre Ezin; JoΓ«l Tossa
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Article
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2002
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Elsevier Science
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English
β 78 KB
We give a sufficient condition for a lightlike isotropic submanifold M, of dimension n, which is not totally geodesic in a semi-Riemannian manifold of constant curvature c and of dimension n + p(n < p), to admit a reduction of codimension. We show that this condition is a necessary and sufficient co