Equation Popup

[ ] [ ] g α′ = − 1-Rα′′ ′′, gα′ ′ = 1-Rα′′ ′′, β ;γδ 2 β γδ β ;γδ 2 β γδ [ ] 1 ′ [ ] 1 ′ (82 ) gαβ′;γ′δ = − --Rαβ′γ′δ′, gαβ′;γ′δ′ = --Rαβ′γ′δ′. 2 2