1129 



ï> = ^ 



«Iri 



«Ij 



'\o~l 



r - ' p—l 



X 



^/.•r , ^^/c/- 



• Ajcr 



P+1 ' ■ 



^7 r 1 A.7 r 1 . 



A. 



The determinant 



^j = 



«Ie 



(i = rj , r^ , . . . r,_i) 



belongs to the matrix 



Mj = 



«11 



ai, 



«y— 1, 1 7 • • . «j— 1, 7 

 «j-1-1,1, . . . «j+i>^ 



«pi , . . . «scr 



which is obtained by omitting the row aji (^ = 1,2, . . . a) in the 

 matrix ^. 

 Besides 



Ajcr , . . . ^^•,. 



is the minor of the reciprocal determinant A, which, apart from 

 the sign, corresponds to the algebraic complement of 



«It' 



Dk 



«A:— 1, i 

 ak+1, i 



ad 



{i — r,,r, . . . r^-i) 



Observing the sign, we have 



A.]cr 1 • • • ^kr 



F " 



■Ap-\-\,r » • • • -Ip f 1, ? 



Jxur J • • • -"-I r 



? P 



= (-if+V-'.i),, 



