56 SULLO SVILUPPO DELLA FUNZIONE PERTURBATRICE 



j (4p»-9/>+4) {4p"-9p'-\-i)D{0fi)-Ìp'-l) {4p'-9p+4)D(0,l) 

 .(p_l)(4yy=-9/)'+4)Z)(l,0)+i(4/)'-9/3+4)£)(0,2) , _, 



l+4(/3-l)(/)'-l)i)(l,l)+|(4/)'^-9/)'+l)A2,0) 



2 

 >-2(/)-l)/)(l,2)-2(/3'-l)/)(2,l)+D(2,2) 



i(2p'+l) {8p'-H2p'+Q5p+27)D{0,0) 



1 + 4 (2/*'+l) (4p=+13/J+9)Z)(l,0) + J(8/)'+42p'+65/)+27jZ)(0,l) 



- (2/)'+l) (2/)+3)£)(2,0)+ i (4p^+13p+9)Z>(l ,1) 

 y +(2iy+l)/)(3,0)+(27)+3)/)(2,l)-+-/)(3,l) 



- i(2/)'+l) (8/)'-42/)'+65p-27)Z)(0,0) 



1 + 4 i^P'+^) (4p^-13/3+9) Z) (1 ,0) - -i (8/)^-42/)'+65/)-27)i)(0,l) f 

 'P'CP'+ljJ— 3)={ ~ ^ }6'- 



■ (2p'+l) {2p-d)D{2,0)+ 1 (4ij'-13p+9)Z)(l,l) 

 l + (2/)'+l)i)(3,0)-(2p-3)D(2,l)+D(3,l) 



' - i (2j3'-l) (8p'+42p'+65/)4-27)Z)(0,0) 



■ i (2p'-l ) (4p^+13/)+9) /) (1 ,0) + i (8/)'+42p'+G5/J+27)Z) (0,1) 

 F{p'—l,p+d)={ 2 fa e^- 



i2p'-l) {2p+3)D(2,0)+ 1 (4/)"+13i9+9)Z)(l,l) 

 \-(2p'-l)£»(3,0)+(2p+3)Z)(2,l)+£»(3,l) 



1(2/3'— l)(8i3'-42p'+65p-27)£)(0,0) \ 



|-4(2p'-l)(4p'-13/J+9)Z)(l,0)-i(8/)'-42i)'+65/)-27)£)(0,l) f 

 /^(p'-l,p-3)= 2 6 ,,e3,. 



1 + (2i)'-l) (2/3-3)D(2,0)+ i (4/)»-13p+9)i)(l,l) 



\-(2p'-l)i)(3,0)-(2/3-3)A3,l)+^(3,l) 



