Equation Icon  2 ∗ 3 guu = − 1 − r ℰ + O (r ), (10.70 ) 2-2( ∗ ∗) 3 gua = − Ωa + 3r ℰa + ℬ a + O (r ), (10.71 ) 1 ( ) gab = δab − ΩaΩb − -r2 ℰa∗b + ℬ∗ab + O (r3). (10.72 ) 3