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A new formulation for the conditional $$p$$-median and $$p$$-center problems. (English) Zbl 1155.90332
Summary: We discuss the conditional $$p$$-median and $$p$$-center problems on a network. Demand nodes are served by the closest facility whether existing or new. The formulation presented in this paper provided better results than those obtained by the best known formulation.

##### MSC:
 90B10 Deterministic network models in operations research
##### Keywords:
$$p$$-median; $$p$$-center; conditional; location; network
OR-Library
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##### References:
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