Qg Alt. 4. — M. Kuniyeda : 



as ri->0, provided tliat p < 1+ </. 

 Thus tlie lemma is proved. 

 48- We now consider the integral I(n) under the supposition 



We liave 



1 1 



(1-e*^)^ ('2sm|é^) 



lß)p 



oip{^-^)i 



A 



^ - « ^[a + ^,,{n--b)]i 



{l-e"')" ri sin ^é^l^ 



Hence we may write 



(69) f(e'') = (fid) é*^'\ 



wh ere 



I.rfß\ - 1 /' cos[a + è</(7t 9)]/(2 sin JO)^ 



and 



(71) /[e<-''-^>'] =^((9)e'-''W, 



where 



(72) 



so tliat we liave, l»y (<')4) ;ind (65), 



Jin) = } r/(y')e-''dd = i- /■' <f{d) e^^(') ""''^' dâ, 

 (73) { 



