1. D = (X, U) , .
2. D = (X, U) .
3. D = (X, U) .
4. .
5. .
6. .
7. .
8. .
9. .
10. .
. , X G = (X, U) k - . , , , . .
. X = { 1, 2, , n } = { l 1, 1 2, , 1 m } X , (" li) li ¹ 0 , I = {1, 2, , m }. , = (, ) , X E, li Î E , .. li Í X. " li Î E (| li | = 2), H G . . 17.30, H = (X, ), || = 7, |E| = 5. , l 5 | l 5| = 1 . : l 1 = { 1, 2, 3, 4}; l 2 = { 2, 3, 6, 7}; l 3 = { 5, 4}; l 4 = { 5, 7}; l 5 = { 1}.
. 17.30, a. H = (X, )
H = (X, E) , ei, . , : ei Ç ej ¹ 0, .
H I(H) = || hij || m ´ n,
. 17.30,
1 | x 2 | 3 | 4 | 5 | 6 | 7 | |||
I(H) = | l 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | . |
l 2 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | ||
l 3 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | ||
l 4 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
l 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
H = (X, E) H* = (E, X), = { l 1, 1 2, , 1 m }, 1, 2, , n. H* H. H* H. li, lj Î E H , li, lj Î E H* , i, j Î X H, H*. H*, , . 17.30, .
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. 17.30, . H*
:
l 1 | l 2 | l 3 | l 4 | l 5 | |||
I(H)* = | x 1 | 1 | 0 | 0 | 0 | 1 | . |
x 2 | 1 | 1 | 0 | 0 | 0 | ||
x 3 | 1 | 1 | 0 | 0 | 0 | ||
x 4 | 1 | 0 | 1 | 0 | 0 | ||
x 5 | 0 | 0 | 1 | 1 | 0 | ||
x 6 | 0 | 1 | 0 | 0 | 0 | ||
x 7 | 0 | 1 | 0 | 1 | 0 |
= (, ) q s(H) = x 1, l 1, 2, 1 2, , lq, xq +1. q > 1 xq +1 = x 1, q.
H n , m k , , ,
.
.
= (X, ) ʸ () = (X È E, V), X , H; , H; V , X () H.
, (H) X , xi Î lj Î E () , H xi lj. . 17.30, ʸ H.
. 17.30, . ʸ K(H)
, (H), .
= (, ) , , , X i (X1 È X2 È X q = X; X1 Ç X2 Ç X q = Æ) , , q , .
1. = (, ), . 17.31.
. 17.31. H
, . 17.31. .
1. .
2. , ?
3. ?
4. .
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5. ?
6. ?
7. ?
8. ?
9. .
10. ?