, ( - ) . 6; -, ( ) .
, :
1) , ( );
2) , ( - );
3) .
) , vj (j = 1, 2,..., m) j (j = 1, 2,..., m), - vj. .1. .
.1
, - , -
. , (x 1) , - (xn) . S.
:
- , xi;
- , xi.
1. , .1:
n = 7, m = 12,
= {1,2},
= {1,3}, = {4,5}, = {2,6}, = {3,7}, = {5}, = {6,8,9,11},
= {4,8}, = {10}, = {7,9}, = {12},
= {10,11,12},
= = Æ ( , , - );
1=3, 2=1, 3=2, 4=1, 5=4, 6=3, 7=2, 8=5, 9=1, 10=6, 11=1, 12=3 ■
u = (u 1, u 2,..., um)
0 ≤ uj ≤ j (j = 1, 2,..., m), (1)
(i = 2, 3,..., n -1). (2)
uj u = (u 1, u 2,..., um) vj (j = 1, 2,..., m). , (1) , - , - . (2) , , , , - ( ).
, - . uj vj - , - . (1) : , . (2) : , .
|
|
(u) u , -, .. .
2. , . 2.
u 1 = (2, 0, 1, 1, 1, 0, 0, 2, 0);
u 2 = (0, 1, 0, 0, 0, 1, 1, 1, 0);
u 3 = (1, 0, 1, 0, 0, 1, 0, 0, 1);
u 4 = (2, 1, 1, 1, 1, 1, 0, 2, 1)
( !). ,
(u 1) = 2, (u 2) = 1, (u 3) = 2, (u 4) = 3
, . .3.
.2 ■
.3
1. , , .2. , 2 (. .3).
u 1 = (0, 0, 0, 0, 0, 0, 0, 0, 0);
u 2 = (1, 0, 1, 0, 1, 0, 0, 1, 0);
u 3 = (0, 1, 0, 0, 1, 0, 0, 1, 0);
u 4 = (0, 1, 0, 0, 0, 1, 0, 0, 1);
u 5 = (1, 1, 0, 1, 1, 0, 0, 2, 0);
u 6 = (1, 2, 0, 1, 1, 1, 0, 2, 1);
u 7 = (3, 0, 1, 2, 0, 1, 0, 2, 1);
u 8 = (0, 2, 0, 0, 2, 0, 0, 2, 0);
u 9 = (1, 2, 0, 1, 1, 1, 0, 2, 1);
u 10 = (1, 1, 1, 0, 2, 0, 0, 2, 0) ■