■o«-r.i 



*j.(s,0+) + »' (s.Of) 



- - € 8 t* + ( 8 » 0f > + *_< 8 »o f >l 

 From (9.8) we have *' (s,0+) - while from (9.9) we have 



1A 



iv D(-q) 



*+ (8 ' Cf) " (s + k Q /M) + £(-q)(s + q) 

 and hence we get a W-H equation 



^*!(o.O+) + 



iA 



iv D(-q) 



F •+ (, '°* ) + *- (St(>f) + (s T k /M) + r(-q)(s + q) 



We define the factors £ (s) £ (s) by 



£.(s) - [s + (k + Ms)] 2 



T O 



1 



K (s) - [s - (k + Ms)] T 



(9.16) 



(9.17) 



and by the usual route arrive at 



k iv o D(_q) 



t-W *;< 8 -^> + ( s r k o / H) cc- ■#) + g( - q)(s + q) g_ ( - q) 



iA 



iv D(-q) 



(9.18) 



» an entire function E(s), which must be a polynomial because of the 

 algebraic behavior of all functions involved here. In fact we must have 

 E(s) - 0, for if E(s) were even a constant, the© part of (9.18) would 

 give 



66 



