Equation Icon  g = − 1 − r2ℰ∗ + 𝒪 (r3), (210 ) uu gur = − 1, (211 ) 2 3 ∗ ∗ 4 guA = --r (ℰA + ℬ A) + 𝒪 (r ), (212 ) 3 gAB = r2ΩAB − 1-r4(ℰ∗AB + ℬ ∗AB ) + 𝒪 (r5) (213 ) 3