On a particular class of warped products with fibres locally isometric to generalized Cartan hypersurfaces
Colloquium Mathematicum 109 (2007), 13-29 MSC: Primary 53B20, 53B25; Secondary 53C25. DOI: 10.4064/cm109-1-3
We prove that every generalized Cartan hypersurface satisfies the so called Roter type equation. Using this fact, we construct a particular class of generalized Robertson–Walker spacetimes.