We show that the satisfiability and maximum satisfiability problems can be transformed into set covering problems at the expense of acceptable increase of s...

Nous établissons un état de l'art exhaustif, conçernant les problèmes de tournées multivéhicules et nomo-dépots, avec contraintes de capacité et de fenêtres...

We propose a new algorithm to solve the on-line vertex enumeration problem for polytopes, doing all computations in <i>n</i>-space, where <i>n</i> is the di...

L'évaluation des émissions et le transport à grandes distances des polluants atmosphériques (TGDPA) sont des composantes essentielles de la problématique de...

We determine here sufficient conditions for finite dimensional moduloïds and pseudomodules to be lattices. As could be expected, completeness of the scalar ...

We consider the following global optimization problems for a Lipschitz function <i>f</i> implicitly defined on an interval [<i>a,b</i>]. Problem <i>P'</i>:...

We consider the following global optimization problems for a univariate Lipschitz function <i>f</i> defined on an interval [<i>a,b</i>]: Problem <i>P</i>: f...

In this note it is shown that no general hypothesis on the cost functions can guarantee that a Pareto optimal solution to a linear bilevel programming probl...

The vehicle routing problem (VRP) involves the design of a set of minimum cost routes, originating and terminating at a central depot, for a fleet of vehicl...

Consider a flow-shop with <i>n</i> parts, whose processing times are state dependent. Since the state often depends on the sequence, a hierarchical approach...

FORTRAN code of an efficient implementation of a <img src="Theta.gif" align=bottom> (<i>N</i>₂) algorithm for the maximum sum-of-splits clusterin...

We report on the development of a linear process model of energy supplies and uses in the province of Ontario (Canada). The minerals industries producing ...

The two-dimensional cutting-stock problem consists of laying out a specified list of rectangular pieces on rectangular sheets, in such a way as to minimize t...

The MARKAL-Québec dynamic process model is used to simulate the reaction of the Québec energy and industrial sectors to the imposition of upper limits on th...

This paper addresses the question of determining an optimal mix of gas contracts for a producer supplying the North American gas market. We first propose a ...

This paper proposes a numerical technique, called Turnpike Improvement, for the approximation of the solution of a class of piecewise deterministic control...

This paper deals with a class of stochastic differential games where the mode of play changes according to a stochastic jumpprocess. Between two successive...

The vehicle routing problem (VRP) involves the design of a set of minimum cost routes for a fleet of vehicles which services exactly once a set of customers...

This paper deals with a continuous-time stochastic control model designed for planning production and preventive maintenance in a flexible manufacturing syst...

This paper develops a conceptual framework for flexibility. A definition of flexibility is presented that is general enough to be applicable to all areas o...