Revista de Matemática: Teoría y Aplicaciones: Recent submissions
Now showing items 21-40 of 319
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MORTALITY AMONG YOUNG NICARAGUAN IMMIGRANTS TO COSTA RICA: AN APPLICATION OF GEOGRAPHICALLY WEIGHTED STATISTICAL REGRESSION
(2014-07-01)This paper applies a geographically weighted statistical regression (GWR) model to young Nicaraguan immigrant homicides in Costa Rica during the period 1998-2008 and identifies possible covariates. The pa- rameters for the ... -
INTERACTIVE MULTIOBJECTIVE TABU/SCATTER SEARCH BASED ON REFERENCE POINT
(2014-07-01)This paper presents multiobjective tabu/scatter search architecture with preference information based on reference points for problems of contin- uous nature. Features of this new version are: its interactive behavior, its ... -
NONLINEAR FILTERS TO RECONSTRUCT ELECTROCARDIOGRAM SIGNALS
(2014-07-01)ECG signals have been used in cardiac pathology to detect disease heart. The main objective of this paper is to propose signal filtering techniques to reduce noise, extract information, to reconstruct the states and ... -
MATHEMATICAL MODEL FOR TOXIN TRANSPORT IN A MARINE FOOD CHAIN
(2014-07-01)Some cases of poisoning by consumption of contaminated fish, like the Ciguatera poisoning, occur unexpectedly and they are not easy to detect previously since the fish that carry the toxin do not have appearance and/or ... -
GEODESIC DISTRIBUTION IN GRAPH THEORY: KULLBACK-LEIBLER-SYMMETRIC
(2014-07-01)Kullback-Leibler information allow us to characterize a family of dis- tributions denominated Kullback-Leibler-Symmetric, which are distance functions and, under some restrictions, generate the Jensen’s equality shown by ... -
LENSING PROPERTIES OF THE EINASTO PROFILE IN TERMS OF THE MEIJER G FUNCTION
(2014-07-01)In N-body simulations of cold dark matter, it has been found that three-parameter models, particularly the Einasto profile, yield better fits to a wide range of dark matter haloes than two parameter models like the ... -
SUPERIOR ORDER G -STRUCTURES
(2014-07-01)In this article we study the basic facts about superior order G-structures, then we show that the set of infinitesimally automorphisms of a geometric G-structure is a closed Lie group. -
Location of police cars for public surveillance using two multicriteria models
(2014-04-03)The criminal boom in some Latin-American cities obliges the increment of patrols and policemen. Sadly they do not there sufficient vehicles to locate in all the places candidates. In the location of patrols, there are many ... -
Artificial bee colony and particle swarm optimization for the estimation of nonlinear regression parameters
(2014-04-03)This paper shows the comparison results of ABC (Artificial Bee Colony) and PSO (Particle Swarm Optimization) heuristic tech- niques that were used to estimate parameters for nonlinear regression models. The algorithms were ... -
The traveling salesman problem: a deterministic algorithm using tabu search
(2014-04-03)We implement an algorithm corresponding to the Taboo Search method, called EraDeterministic, experimenting with the basic algorithm that ex- plores the search space and incorporating the diversification as strategy to ... -
Interstatis: the statis method for interval valued data
(2014-04-03)The STATIS method, proposed by L’Hermier des Plantes and Escoufier, is used to analyze multiple data tables in which is very common that each of the tables have information concerning the same set of individuals. The ... -
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 ... -
GNM-NIPALS: general nonmetric-nonlinear estimation by iterative partial least squares
(2014-04-03)This paper develops GNM-NIPALS as an extension of the NM-PLS methods, which allows to quantify the qualitative variables of mixed data, by means of the reconstitution function using the first k principal com- ponents, ... -
Funciones regulares en el plano y operadores de Nemytskii
(2014-01-01)En este artículo mostramos que el espacio de las llamadas funciones regularizadas definidas sobre algún rectángulo del plano es un espacio de Banach. Más aún, bajo las hipótesis adecuadas damos condición necesaria ... -
Construction and study of local linearization adaptive codes for ordinary differential equations
(2014-04-03)The aim of this work is to construct adaptive integrators for ordinary differential equations based on the Local Linearization method. Different orders of the involved Padé approximation are considered and their effect ... -
K-finite objects and decidability
(2014-01-01)We study the k-finite and decidable objects in an elementary topos. We prove some results concerning k-finite and decidable objects. -
Dice, sticks, pixels and bits: didactic alternatives to explore the methodology of Monte Carlo in a ludic tone
(2013-08-29)This paper presents didactic strategies in a ludic tone to explore the methodology of Monte Carlo and analizes the implementations that have been performed in several educational scenarios. These proposals allow us to put ... -
Challenges for statistics teaching and teacher’s training in Mexico
(2013-08-29)This work will cover the problems that are found in teacher training and professional development in Probability and Statistics in higher education in Mexico. It will be approached through four focuses: a) the characterization ... -
Comparative analysis of the orbital structure for non–cuspy and cuspy triaxial models of galaxies using different expansions of the gravitational potential
(2013-08-29)One way to create models of elliptical galaxies is to start from a system of particles with a suitable distribution and to follow its evolution with an N-body code until it reaches equilibrium. In previous works we used ... -
Algoritmo de búsqueda tabú para una variante del problema de coloración
(2013-08-29)El problema de coloración robusta generalizado (PCRG) resuelve problemas de horarios que consideran restricciones especiales. Al ser una generalización del problema de coloración robusta, que es a su vez una generalización ...