Equation Icon  ˙pα(u) = gα eα′u β′ + (gα u α′)(a ′eβ′) a [ α′;β′ a α′ ]β a [ ] 1- b 2 α 1- b c 2 α = aa + 2 rRa0b0Ω + O (r )e 0 + − 2 rR a0cΩ + O (r ) eb, ¨pα(u) = gα eα′uβ′uγ′ + gα (2uα′uβ′a ′eγ′+ eα′aβ′) + (gα aα ′)(a ′eβ′) + (g α uα′)(˙a ′eβ′) a [ α′;β′γ′ a ] [ α′;β′ ] γ a a α′ β a α′ β a = a˙a + O (r) eα+ aaab + O(r) eα, 0 b