42 SULLO SVILUPPO DELLA FUNZIONE PERTURBATRICE 



F(p',p)= ìGD(Ofl}-S[^p'-D{0,0)—D(0,2)]e'"--8[-2p"D{0,0)^D{2,0)]e'' 



+ [ ^p'\ìGp''-17)D{0,0)~--2p''D{0,[)-4p''D{0,-2)-i-nD{0,A)je'' 



+ [ lGpY"-Di0fi)—Sry'-r)c2.O)—8pW[0,2)-{-in{2,'2) ] e'e'- 



+[ ^PllGp--17)Z)(0,0)-2p^D(l,0)-47J=Z)C2,0)+G/)(4,0)]e' 



F( ]>'■+■! ,p)= 8 [ (S/j'+l )Z)(0,0)+Z)( 0, 1 ) ] e' 



, (87y'3+14/y=+5/y+l )I'(,0,0)+(4//^'+3iy+l)D(0,l ) 



e- 

 -2(2/y+l)Z3(0,2)-G£)(0,3) ^ 



— [ 8/)=(3/)'+l)Z)(0,0)+8/J=/)(n,l) _4(2/)'+l)Z»(2,0)-4I>(2,l) ] (?'e' 



1 



24 



(32p'^+9G/y'+34//'— 47/3'=+8/y+l)Z)(0,0) 



+ — (16/)"+8/)"-35i)'^-2p'+l)D(0,l)- -g-(8/)"+187i'-+5/)'+ljZ)(0,2)J e'^ 

 ^ ■ ~ (4/y=4-3/y+l)Z)(0,3)+(2p'+l)i)(0,4)+5/3(0,5) 



p''-{S[j"+\Ap"--^hp'+{ )/)(0,0)+//^(4/y^+3/)'+l)£)(0,l) 



-'-5/j=(--y 



+1JA0,2) - 1 W+Uir-+hp'+l)D{2fi) '^.,,n 



.Gp'D{0,3)~^(Ap''+3p'+l)D[2,\)+{2p'+l)Di2,2)+dD(2,d) 



V Ì/''(^'P'4-1) (lG/)'^-17)Z)(0,0)-/)H2/y+l)Z)(l ,0)+-U^(lpp'-17)Z)(0,l)) 

 -4- 'p*e' 



- 2//-\27y+l)Z)(2,0) -/)=i3(4,l) -2y/^Z)(2,l)+3(2/)'+l)Z)(4,0)+3£»(4,l ) ) 



F( P'-1,70 = -8 [ (O7y_i)£)(0,0)-ZJ(0,l) ] e' 



(8yr'-147y=+5//-l)/)(0,0)-(4/)'^-3//+l)i)(0,l)i 

 f_o(o^y_l)_D(0,2)+6A0,3) ^ 



H- [ 8//(2/)-l)fl(0,0)-87/)£)(0,l)-4(2i3'-l)Z)(2,0)-tÌ4Z)(2,l) ] e'e' 



