:
N T N T
{ + Σ Σ ( i t ) σt + Σ Σ ( it ) σt } → min, (5.5)
i = 1 t = t p i = 1 t = t p
, 㳿 i t :
N T N T N T
[Σ Σ ( i t )+ Σ Σ ( it )(t)] ≥ Σ Σ ( it ), (5.6)
i = 1 t = t p i = 1 t = t p i = 1 t = t p
- S, . ó ( ) , (. 5.15).
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. 5.15. S
1. , . . .
2. , . , .
3. . : ; ; (, ); , . 䳿 ( . 6.2).
, - , , . , , , . .
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5.3. ֲ SCM