. "Cartan's structural equations" . . "Schwarzschild spacetime"@en . "Schwarzschild metric"@en . "Stoica" . "Schwarzschild black hole"@en . "Stoica Ovidiu Cristinel" . "Penrose diagrams"@en . . . "Information paradox"@en . "Global hyperbolicity"@en . "General relativity with degenerate metric"@en . "6be5035ac071be350cd62c6772e6d846" . <0000-0002-2765-1562> . <253123925> . "Singularity theorem"@en . . "Singular semi-Riemannian manifolds"@en . "Semi-regular semi-Riemannian manifolds"@en . "Singular semi-Riemannian geometry"@en . "Semi-regular semi-Riemannian geometry"@en . "Singular general relativity"@en . . "Ovidiu Cristinel" . . . "Black holes"@en . "Warped product"@en . "Einstein equation"@en . "Degenerate manifolds"@en . "Cosmology"@en . "Cosmic censorship"@en . "Cauchy problem in general relativity"@en .