Equation Icon  ∫ v γαβ (x ) = 2m-U αβ uγ′uδ′ +-2m-U αβ uγ′′uδ′′ − 2m V αβ (x,z)uμu νdτ, (19.60 ) S r γ′δ′ radv γ′′δ′′ u μν