equation icon  P (t,s,wa) =_ P (x)ea(x) 0 a 0 = - 1qa wa + -1(1 - 6q)qR + Ptail+ O(s), (400) 2 a 12 0 Pa(t, s,wa) =_ Pa(x)eaa(x) q q ( ) 3 3 ( ) 1 1 = - --wa - ---aa - abwbwa + -qabwbaa - -q abwb 2wa + -qa0wa + --qaa s2 2s 4 8 8 3 - 1qR wb + 1-qR wbwcw + -1-q[R - R wbwc - (1 - 6q)R]w 3 a0b0 6 b0c0 a 12 00 bc a 1 ( b) tail + 6q Ra0 + Rabw + P a + O(s). (401)