Luis J. Alı́as

Codimension two spacelike submanifolds into null hypersurfaces of generalized Robertson–Walker spacetimes

Abstract We study codimension two spacelike submanifolds contained into a general class of null hypersurfaces in generalized Robertson–Walker spacetimes, refer to as nullcones. In particular we analyze light cones and lightlike cylinders in Lorentz–Minkowski spacetime, as well as...