Equation Icon   ^ ^ i ^R- 1-^ ^ij - 7 1-- 2 5 5-n \~/ i \~/ y - 8 y + 8 AijA y - 12K y + 2pG r^y = 0, (63) j i 1 i( j) i j 2 6 i i (^ \~/ j ^ \~/ w) + --^ \~/ ^ \~/ jw + R^jw - -y ^ \~/ K - 8pG^s = 0, (64) 3 3