168 



11. FUJISAWA. 



«0 bciiïg' zero. If, as will be convenient, we write 



k-C , s 



^ -V 



then ^^±2i = (rt^ + rt,.+ .. +rt„,i""0 + (l}, + b,z+... + b,„^,^u, 

 z 



and 



(29.) 



+ ö„,_iD'" («^™-i} =0, 





whence 



(80.) 



1,:, :^... 



1,^, ^^... 



1 , 'Iz, . . . ni 



7\ 0, 0r, 



Ô'™, IL, ItZ, 



r -\ Du, Duz, 



0^m 1 

 71Z"'^-^ 



DiLz'"-^ 



m\,D"'u, D"'uz, ...D"'uz"'-^ 

 D"'+hi, D'^'hiz, ... D"'+htz'"'-'^ 

 D"''^-u, D"'^hiz, ...D"'+-icz"'-'' 



D'"'-hi, D-"'-hiz, ... D-"'-htz"'-^ 



= 



The expansion of this determinant according to the elements of 

 the first row may he written : 



