Search
Now showing items 11-20 of 351
Modelos minimales de la recta hiperreal
Modelos minimales de la recta hiperreal
(2009-02-18)
A new proof of the existence of minimal models of the hiperreal line is obtained in terms of a combinatorial property of Ramsey ultrafilters over a countable set.
Análisis estadístico de datos categóricos ordenados
Análisis estadístico de datos categóricos ordenados
(2009-02-18)
Ordered categorical panel data is modeled assuming an underlying continuous-time finite-space Markov chain. The tridiagonal form of the intensity matrix renders the implementation of the maximum likelihood method more ...
Método de Karmarkar
Método de Karmarkar
(2012-03-21)
This is the first of a series of two articles in wich we study the Karmarkar’sAlgorithm.In this article we present a new approach that will be called the Karmarkar’s method. We intent to present a version of this algorithm ...
Lobachevski descubridor de la Geometría Hiperbólica
Lobachevski descubridor de la Geometría Hiperbólica
(2012-03-21)
We offer an overview of the geometric studies of the russian mathematician N.I. Lobachevski (1792?1856), which culminated with the discovery of the hyperbolic geometry. We analize the role of the V Postulate in the euclidean ...
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 ...
Generación de métricas en análisis de datos
(2009-02-20)
In this work we introduce primary generators of metrics, that consist of linearcombinations of known metrics. We establish some theoretical properties of these generators,related to the computation of principal components, ...
Fórmulas aproximadas del tipo Lévy-Khintchine
Fórmulas aproximadas del tipo Levy-Khintchine
(2009-02-19)
The problem of approximation of the characteristic functions defined by a PII in near intervals is studied. We establish some general properties of these functions and of the associated complex matingales, which, with the ...
A method for analyzing turbulence models
(2009-02-19)
In this article we introduce a concept based on the differential constraints methodto examine the closure procedure in Turbulence Models. We show how this conceptmay be applied to study the problem of interaction and mixing ...
A Tabu search Approach for the Weighted Tardiness with Sequence-Dependent Setups in one-machine Problem
A Tabu search Approach for the Weighted Tardiness with Sequence-Dependent Setups in one-machine Problem
(2011-04-29)
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 ...
Análogos a Teoremas Tauberianos
(2011-04-29)
We 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