Equation Icon  𝒢 ˆμρ = ∂ ˆμXmgmz (81 ) 𝒢 ρρ = gzz (82 ) 𝒢μˆνˆ= 𝒢 ′ˆμˆν + ∂ ˆμXm ∂νˆXn (gmn − g′mn) − ∂ˆμXm ∂ˆνZ ′g′z′m ′ M ′′ − ∂ˆμZ ∂ˆνX gz′M′ (83 ) ℱ ˆμρ = ∂ ˆμZ′ − ∂ˆμXmBmz (84 ) ′ m n ′ ′ n ′ ℱμˆνˆ= ℱ ˆμˆν − ∂ˆμX ∂ˆνX (Bmn − Bmn ) + ∂ˆμZ ∂ˆνX B z′n + ∂ˆμXm ∂ˆνZ ′B ′mz′ . (85 )