The transportation problem with exclusionary side constraints
نویسندگان
چکیده
We consider the so-called Transportation Problem with Exclusionary Side Constraints (TPESC), which is a generalization of the ordinary transportation problem. We confirm that the TPESC is NP -hard, and we analyze the complexity of different special cases. For instance, we show that in case of a bounded number of suppliers, a pseudo-polynomial time algorithm exists, whereas the case of two demand nodes is already hard to approximate within a constant factor (unless P = NP ).
منابع مشابه
The transportation problem with exclusionary side constraints ∗ Dries Goossens † and Frits
We consider the so-called Transportation Problem with Exclusionary Side Constraints (TPESC), which is a generalization of the ordinary transportation problem. We determine the complexity status for each of two special cases of this problem, by proving NP-completeness, and by exhibiting a pseudo-polynomial time algorithm. For the general problem, we show that it cannot be approximated with a con...
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ورودعنوان ژورنال:
- 4OR
دوره 7 شماره
صفحات -
تاریخ انتشار 2009