Revista de Matemáticas 9(1)
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Ítem Métodos de superficie Multirespuesta: Un Estudio Comparativo(2011-04-29 00:00:00) de la Vara Salazar, Román; Domínguez Domínguez, JorgeThe simultaneous optimization problem may not to have a complete satisfactory solution from the point of view of the individual responses, in the sense that individual optimums are different respect to global optimum; but always it is possible to say that it exists the process operation conditions (point in the factors space) where the responses fit “in the best way” to their specification limits and target values. It is always possible to obtain a compromise solution, which look for the best balancebetween the responses. This paper discusses several methods that have been proposed for analyzing multi-response data, and it is shown that the graphical method can raise the best solution compared with the analytical methods. The performance of the methods is compared in the context of one example. Finally, in two of the methods we suggest alternative weighting of the responses in order to improve the results.Ítem Análisis y síntesis de sistemas de ingeniería para la preparación y toma de decisiones bajo criterios múltiples(2011-04-29 00:00:00) Arzola Ruiz, José; Simeón, RolandoWe present a methodology for the analysis and synthesis of systems dedicated to the preparation and decisions making under multiple objectives, as well as its application to engineering tasks. This methodology presupposes the realization of the following steps: -decomposition of the task of more spans which belong the studied task,-external and internal analysis, and-elaboration of the general procedure of preparation and decisions making.Ítem A Tabu search Approach for the Weighted Tardiness with Sequence-Dependent Setups in one-machine Problem(2011-04-29 00:00:00) Beausoleil, Ricardo P.In this paper, a Tabu Search Approach for the weighted tardiness single machine problem with sequence-dependent setups is proposed. The main contribution is the balance obtained between intensification and diversification strategies. The strategy of combine large step optimization, frequency-based memory, intensification by decomposition supplementing this with an additional intensification using path relinking produce good solutions with a low computational cost. Our Tabu Search approach is compared with a re-start method that employs the all-pairs neighborhood. Results of computational experiments are reported for a set of randomly generated test problems.Ítem Generalization of Rakotch's fixed Point Theorem(2011-04-29 00:00:00) Morales, José R.In this paper we get some generalizations of Rakotch's results [10] using the notion of $\omega ?distancia$ on a metric spaceÍtem On the Stability of a class of Polytopes of third order square matrices and stability radius(2011-04-29 00:00:00) Vázquez Silva, EfrénIn this work we investigate the stability properties of a convex symmetric timeinvariant third order matrix's polytope depending on a real positive parameter $r$. We apply the obtained results to the calculation of the real stability radius of a third order matrix under a certain class of affine perturbationsÍtem Análogos a Teoremas Tauberianos(2011-04-29 00:00:00) Mora M., María de los AngelesWe obtain some results similar to W. Rudin’s Tauberian Theorem, on singular integrals defined on bounded intervals. We also consider cases on which the Kernel is an oscillating function