with 



M = ±ZlLl i±'l^iilii]J-^ 



m \ n 



k 2 



N = ±-i2^(l±-2L^ + [k ± k P 

 fc 2 \ u 2 I \ m n\ 



,k 2 \ m r 



n 



2u 2 



. 'k -^ \ k ^ ^ 



m n ' 



k -k 



Az follows then from (62) and (65) 



A A e-<ro/2)H 



± m n 



'""' I sin aU cos a H 



^0 (ro/2)H/rQ ,,, / 1 ■ / 1 u 



^ + e \-^ cos (o„^ - a,, - a^lH + fa^-a,,-a^j sin (a^^^-a^-a^) H 



—^ + e — ^cos(o -a + a )H + (a^ 



m n r 



•«^ + V sin («,„-% + a,^H) 



' 



4 



<"m+ «.-«/ 



R- 



1^0 ^ (ro/2)H/£ 



p(lo/2)H^_0 pog („^^^ g^^ _^ Q^H _^ ^Q^_^ g^^ a J gin ca^ _^ Q^ _^ aJH^ 



(a^+ a„+ ar 



«.-%+ % +e*^"'-'"(y° sin (a^-a„ . a,^m - ia^-a^ + a„) 



-°- + fa -o„ + a„r 

 4 



r m n 



21 



