Abstract
In this paper we prove that there always exists a finite set that includes an optimal solution for the Huff and the Pareto-Huff competitive models on networks with the assumption of a concave function of the distance. In the Huff model, there is always a vertex of the network that belongs to the solution set. For the Pareto-Huff model, we prove that there is always an optimal solution at, or an ε-optimal solution close to, a vertex or an isodistant point, a new concept introduced in this paper.
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Peeters, P.H., Plastria, F. Discretization results for the Huff and Pareto-Huff competitive location models on networks. Top 6, 247–260 (1998). https://doi.org/10.1007/BF02564790
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DOI: https://doi.org/10.1007/BF02564790