This paper provides integer linear programming formulations for three types of vehicle routing problems. Appropriate relaxations of these formulations lend ...

Consider a set of trips where each trip is specified a priori by a place of origin, a destination, a duration, a cost and a time interval within which the tr...

The aim of this paper is to propose a deterministic model designed for the analysis of social services policies directed toward large populations. The model...

Ce rapport a pour but de fournir une description plus précise des technologies utilisées dans l'industrie du zinc en considérant un ensemble d'activités cara...

The variational inequality problem can be formulated as a nonconvex, nondifferentiable optimization problem. We show that this formulation leads to a conver...

This paper provides an integer linear programming formulation for a class of multidepot vehicle routing problems. This formulation contains degree constrain...

Bus fleet route planning is often carried out in the following two sequential stages:<br> 1) Based on the demand, determine the trips to be carried out.<br>...

Ce rapport a pour but de fournir une description plus précise des technologies utilisées dans l'industrie du cuivre en considérant un ensemble d'activités ca...

Ce rapport a pour but de fournir une description plus précise des technologies utilisées dans l'industrie des scories de titane en considérant un ensemble d'...

In this article, two Lagrangean relaxations for the vehicle routing problem with time windeow constraints are examined. In the first case, the scheduling co...

Recently much attention has been focused on multilevel programming, a branch of mathematical programming that can be viewed either as a generalization of min...

The deepest, or least shallow, cut ellipsoid method is a polynomial (time and space) method which finds an ellipsoid, representable by polynomial space integ...

A two country differential game mode of whaling is used for analysing a dynamic bargaining problem. At a given initial time, the two countries may either co...

A two-country fishery management game is considered in the realm of the theory of non-cooperative and cooperative differential games. Conditions which guara...

Les modèles développés jusqu'à maintenant dans le domaine urbain, que ce soient les modèles économétriques ou encore les modèles déterministes de simulation,...

Ce rapport a pour but de fournir une description plus précise des technologies utilisées dans l'industrie du ciment en considérant un ensemble d'activités ca...

A non-cooperative game is formulated on a transportation network with congestion. The players are associated with origin-destination pairs, and are facing d...

Consider a set of trips where each trip is specified a priori by a place of origin, a destination, a duration, a cost and a time interval within which the tr...

Le problème du voyageur de commerce (PVC) symétrique consiste à déterminer le cycle le plus court passant exactement une fois par chacun des noeuds d'un grap...

This paper consider the problem of determining the shortest circuit or cycle in a graph containing n nodes and such that (i) each of k nodes (k &#x2264; n) i...