, c1,c2,...,cn g1,g2,...,gn , , .
, g = (g1,...,gn) :
Δj + Δj . = (+g)* B*j-(cj+gj) ³ 0, j=1,...,n
BAj, j=1,...,m ( ) , 0 - .
.
( - ) : =(x1,x2,...,xm) ( 0); Y=(y1,y2,...,ym); , ; - Δ=(Δ1, Δ2,..., Δm,..., Δn); 0, (Δj ³ 0). , , xj, cj ; , .
(m * m); ( -1) ; , X = b = b; , b - ; , :
Δj = *B*j - cj, =(c1,c2,...,cm) ; j j- ; Δj - - .
, :
Δj ³ 0, j =1,2,...,n ;
X = Bb ³ 0, .
b = (b1,b2,...,bm) ( ) ; h = (h1,h2,...,hm), : b1+h1, b2+h2,...,bm+hm b+h, h1,h2,...,hm , (), . , h (). , h ( ), : X+X = B(b+h) ³ 0
( m .
, , ( , ). ( . ), :
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dF(b1,b2,...,bm)
= yi, i=1,2,...,m
dbi
, dF = F(b1+h1,b2+h2,...,bm+hm)-F(b1,b2,...,bm) = y1*h1+y2*h2+...+ym*hm= (Y,h) = SUM yi*hi