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This paper studies the stability properties of the concepts of local compactness introduced by the authors in 1998. We show that all of these concepts are stable for contractive, expansive images and for products. 1. Introduction. Having introduced notions of local compactness, basis local compactness and related measures, and having studied the basic(More)
1 Problem definition The orienteering problem (OP) is defined on a graph in which scores are assigned to the vertices and a travel time is assigned to each edge linking two vertices. The objective of the OP is to select a subset of vertices and determine the order in which they are visited so that the total collected score is maximized while the maximum(More)
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