04.20.-q Classical general relativity (see also 02.40 Geometry and topology) ( 0 Dok. )

• 04.20.Cv Fundamental problems and general formalism ( 0 Dok. )
• 04.20.Dw Singularities and cosmic censorship ( 0 Dok. )
• 04.20.Ex Initial value problem, existence and uniqueness of solutions ( 0 Dok. )
• 04.20.Fy Canonical formalism, Lagrangians, and variational principles ( 0 Dok. )
• 04.20.Gz Spacetime topology, causal structure, spinor structure ( 0 Dok. )
• 04.20.Ha Asymptotic structure ( 0 Dok. )
• 04.20.Jb Exact solutions ( 0 Dok. )