On the linear relaxation of the p-median problem
نویسندگان
چکیده
We study a well-known linear programming relaxation of the p-median problem. We give a characterization of the directed graphs for which this system of inequalities defines an integral polytope. As a consequence, we obtain that the p-median problem is polynomial in that class of graphs. We also give an algorithm to recognize these graphs. © 2011 Elsevier B.V. All rights reserved.
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ورودعنوان ژورنال:
- Discrete Optimization
دوره 8 شماره
صفحات -
تاریخ انتشار 2011