Geometry of degenerate hypersurfaces
The author studies the geometry of degenerate hypersurfaces of semi-Riemannian manifolds; the notion of screen distribution is introduced. The Gauss-Codazzi equations are given for degenerate hypersurfaces and a fundamental theorem for degenerate hypersurfaces is established. Special classes of degenerate hypersurfaces are studied for semi-Riemannian spaces and for Lorentz spaces.
scientific article; zbMATH DE number 946750