Equation Icon  0 α [ a 1 2 3] [( 1 2 ) 1 2 3 ] a eαdx = 1 + raaΩ + 2-r S + O (r )du + 1 + 6-r S Ωa − 6r Sa + O (r ) dˆx , (10.32 ) [ 1 ] [ 1 1 ] eaαdxα = raa + -r2Sa + O (r3) du + δab − -r2Sab + -r2Sa Ωb + O (r3) dˆxb. (10.33 ) 2 6 6