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Mostrando ítems 1-10 de 19
On the stability of certain perturbed systems of differential equations and the relationship with the magnitude of the perturbation
Sobre la estabilidad de ciertos sistemas perturbados de ecuaciones diferenciales y sus relaciones con la magnitud de la perturbación
(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 ...
Propiedades de un enfoque difuso para particionamiento con datos bimodales
Propiedades de un enfoque difuso para particionamiento con datos bimodales
(2010-04-09)
It is presented a new fuzzy partitioning criterion for two-mode data and an algo-rithm is formulated for its optmization. We study the convergence properties of themethod. The method was tested on real data. It is ...
Asignación de frecuencias en telefonía celular aplicando el problema de coloracion robusta
Asignación de frecuencias en telefonía celular aplicando el problema de coloracion robusta
(2010-04-09)
The Robust Coloring Problem (RCP) is a NP-Hard Problem for which fast andefficient heuristic algorithms has been developed. In this work we present as a PCRthe problem of assignment of frequencies for a cellphone grid. ...
Evaluation of air pollution control policies in Mexico City using finite Markov chain observation model
Evaluation of air pollution control policies in Mexico City using finite Markov chain observation model
(2010-04-09)
This paper proposes a Markov observation based model, where the transition ma-trix is formulated using air quality monitoring data for specific pollutant emissions,with the primary objective to analyze the corresponding ...
Parameter Estimation in HIV/AIDS Epidemiological Models.
Estimación de parámetros en modelos epidemiológicos de VIH/SIDA.
(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 ...
Algebraic jet spaces and Zilber’s dichotomy in DCFA
Espacios de jets algebraicos y la dicotomía de Zilber en DCFA
(2010-04-16)
This is the first of two papers devoted to the proof of Zilber’s dichotomy for the case of difference-differential fields of characteristic zero. In this paper we use the techniques exposed in [9] to prove a weaker version ...
Repeating games and dynamical systems in oil market
Juegos repetitivos y sistemas dinámicos en el mercado del petroleo
(2010-04-16)
We use the modern theory of repetitive games in a model that help understand a market with a cartel like OPEP. We also study a dynamical system Lotka-Volterra type, and we analyze the dynamic behavior of the model.
Clasificacion automática simbólica por medio de algoritmos genéticos
Clasificacion automática simbólica por medio de algoritmos genéticos
(2010-04-09)
This paper presents a variant in the methods for clustering: a genetic algorithm forclustering through the tools of symbolic data analysis. Their implementation avoidsthe troubles of clustering classical methods: local ...
Limit Theorems in Bellman–Harris Processes with Finites Second Moments
Teoremas Límites en Procesos de Bellman–Harris con Segundos Momentos Finitos
(2010-07-02)
In this article are studied different theorems limits in a criticalBellman-Harris branching process with a only type of particle and with finite second moments. There were used two processes in order to figure out the ...
Principal Component and Regression Analysis for Categorical Data.Application to Arterial Hypertension.
Análisis de Componentes Principales y Análisis de Regresión para Datos Categóricos. Aplicación en la Hipertensión Arterial.
(2010-07-02)
The present work is about the statistical processing of categorical data. The mathematical details of the Categorical Principal Components and the Categorical Regression Analysis are explained.The combination of both ...