equation icon  D = 3wHD - (1 + w)Z, (292) ( 2 ) [ ( 2 ) ] --cs-- 2 2 1- 2 r- --4cs- rE- Z = -2HZ - 1 + w \~/ D - k rU - 2 k r 1 + (4 + 3w) c - 1 + w r D, (293) ( 2 ) ( ) ( ) U = (3w - 1)HU + -4cs-- rE- HD - 4rE- Z - a \~/ 2Q, (294) 1 + w r 3r 1 2 1 [( 4c2 ) r r ] Q = (3w - 1)HQ - --U - --a \~/ 2TT +--- ----s- -E- 3(1 + w)-- D. (295) 3a 3 3m 1 + w r c