equation icon  (1) 1 { ( V~ ------mn) mn (1)} V =_ - V~ ---(0)- @m -g(0)h @n + h @m@n + q(n)R , - g { ( ) ( )} (164) (2) ---1---- V~ ---(0)^mn ^mn (2) 1- (1) V =_ - V~ --g(0) @m - g h @n + h @m@n - q(n) R + 2 hR .