KnowraRaychaudhuri equationLinked fromLinked fromThe 4 pages that link to Raychaudhuri equation, each with the reason it gives.All 4Related 4Ricci curvatureRelated: Its curvature term is Ricci curvature, linking focusing to geometric convergence.Gravitational singularityRelated: It explains how gravity can focus geodesics until the conditions behind incompleteness arise.Penrose–Hawking singularity theoremsRelated: It mathematically connects energy conditions to the convergence of geodesics.Mathematics of general relativityRelated: It connects geodesic focusing to curvature and underlies key singularity results.