$\alpha$-associated Metric On Rigged Null hypersurfaces

Ferdinand Ngakeu, Hans Fotsing Tetsing

Let $x:M\to\Bm$ be the canonical injection of a Null Hypersurface $(M,g)$ in a semi-Riemannian manifold $(\overline{M},\bar{g})$. A rigging for $M$ is a vector field $L$ defined on…