Listar Revista de Matemática: Teoría y Aplicaciones por título
Mostrando ítems 207-226 de 319
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Obtención de la fórmula de la Variancia del Estadístico de la Dócima de rangos de Wilcoxon-Mann-Whitney
(2012-03-21)En este artículo se deriva la fórmula de , en donde es el estadístico de la dócima de Wilcoxon-Mann-Whitney, para probar la hipótesis de igualdad de las distribuciones de dos poblaciones. El propósito es brindar detalles ... -
On a variational principle for shape optimization and elliptic free boundary problems
(2009-02-18)A variational principle for several free boundary value problems using a relaxation approach is presented. The relaxed Energy functional is concave and it is defined on a convex set, so that the minimizing points are ... -
On the Cramér–Von Mises Statistic
(2012-03-11)Probably, one of the most useful criterions in order to compare distribution functions is the one introduced by the researchers Harald Cramér and Richard Edler von Mises which is known as Cramérvon Mises criterion $(C_M)$. ... -
On the design of membranes with increasing fundamental frequency
(2014-04-03)By means of a relaxation approach, we study the shape design of a stiff inclusion with given area in a membrane in order to maximize its fun- damental frequency. As an eigenvalue control problem, the fundamental frequency ... -
On the Distribution of non-attacking Bishops on a Chessboard C
(2012-04-26)It is shown how the placement of non-attacking bishops on a chessboard C is related to the matching polynomial of a bipartite graph. Reduction algorithms for finding the bishop polynomial of C are given. We interpret ... -
On the Stability of a class of Polytopes of third order square matrices and stability radius
(2011-04-29)In 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 ... -
On the stability of certain perturbed systems of differential equations and the relationship with the magnitude of the perturbation
(2010-04-16)In this work we consider a class of polytopes of third order squarematrices, studied early. We obtain a condition to guarantee Hurwitzstability of each of elements of the polytope. This condition is moresimples than one ... -
One-side oscillation strategic approach
(2013-04-04)This paper reports an approach developed to find a good quality solution for a generalized assignment problem with application to the Dimensional Cutting Problem. The objective at the Cutting Problemis to divide different ... -
One-Sided Confidence Interval Estimation for Weibull Shape and Scale Parameters
(2012-03-02)In this paper, we consider the problem of one-sided conditional and unconditional interval estimation for the scale and shape parameters in a two-parameter Weibull model. The statistical inference is based upon the pivots ... -
Optimal Control of Pollution Stock through Ecological Interaction of the Manufacturer and the State
(2011-03-18)A model of an interaction between a manufacturer and the state where the manufacturer produces a single product and the state controls the level of pollution is created and investigated. A local economy with a stock pollution ... -
Optimal design of networks and routing of computers: practical case
(2010-04-16)This work introduced to the problem of routering and optimum design of networks of computers that must satisfy certain practical conditions of interconnectivity. This paper show an approach style Steiner problems, and ... -
OPTIMAL PRODUCTION–SALES STRATEGIES FOR A COMPANY AT CHANGING MARKET PRICE
(2015-01-01)In this paper we consider a monopoly producing a consumer good of high demand. Its market price depends on the volume of the produced goods described by the Cobb-Douglas production function. A production-sales activity of ... -
Optimiza - un paquete computacional para la optimización de problemas no lineales
(2009-02-18)Our goal is to build a software able to solve problems in non linear optimization. A central point is selection of the algorithm, which is based on Augmented Lagrangian Method combined with quasi-Newton methods (BFGS, ... -
An optimization algorithm inspired by musical composition in constrained optimization problems
(2013-08-29)Many real-world problems can be expressed as an instance of the constrained nonlinear optimization problem (CNOP). This problem has a set of constraints specifies the feasible solution space. In the last years several ... -
Parallelization of a Quantum-Classic Hybrid Model For Nanoscale Semiconductor Devices
(2011-07-26)The expensive reengineering of the sequential software and the difficult parallel programming are two of the many technical and economic obstacles to the wide use of HPC. We investigate the chance to improve in a rapid way ... -
Parameter Estimation in HIV/AIDS Epidemiological Models.
(2010-07-02)The validation process of mathematical models that describe practical applications usually implies the estimation of the unknown parameters that are involved. In this work, in order to estimates these parameters in the ... -
Particiones óptimas: características y calidad de sus aproximaciones
(2009-02-18)In the part, we present a factorial approach for clustering following the least squares criterion, for every choice of the metrics in the individual space. We deduce that the between-clusters inertia has an upper bound ... -
Partición óptima: el algoritmo de Fisher
(2012-03-29)El algoritmo de Fisher es un algoritmo que calcula exactamente una partición óptima en k clases de un conjunto W de n individuos a los que se les ha medido una variable real v. Tal clasificación que se obtiene, aunque no ... -
Pattern equation method for the solution of electromagnetic scattering by axially-symmetric particles with complex anisotropic surface impedance
(2013-04-04)The pattern equation method (PEM) has been extended to solve the scattering problems of electromagnetic waves by particles with mixed anisotropic surface impedance. Thus, the anisotropic impedance boundary conditions are ... -
Personnel Selection Based on Fuzzy Methods
(2011-03-18)The decisions of managers regarding the selection of staff strongly determine the success of the company. A correct choice of employees is a source of competitive advantage. We propose a fuzzy method for staff selection, ...