• Simulation models generator. Applications in scheduling 

      Castrillón, Omar Danilo; Giraldo, Jaime Alberto; Sarache, William Ariel (2013-08-29)
      The aim of this study is to disseminate the academic community a prototype computer that automatically generates simulation models of a given industrial production system, in order to facilitate the learning of some ...
    • Simulation of decametric wave propagation in the ionospheric plasma 

      Kiryanova, Kseniya S.; Kryukovsky, Andrey S.; Lukin, Dmitry S. (2013-04-04)
      The decametric radiowaves propagation in the ionospheric plasmawas considered. Bicharacteristic system of equations was used in themodeling ray structures. This system, which allows finding the raypaths with great precision, ...
    • Small data existence for the Boltzmann Equation in $L^{1}$ 

      Galeano Andrades, Rafael; Ortega Palencia, Pedro; Vásquez Ávila, María Ofelia (2012-03-11)
      An existence theorem for the Boltzmann Equation with force term and small initial data is proved in an $L^{1}$ setting
    • Sobre el problema inverso de difusión 

      Mercado Escalante, José Roberto; Aldama R., Álvaro Alberto; Brambila P., F. (2009-02-20)
      Infiltration is physically described in order to model it as a diffusion stochasticprocess. Theorem M-B 1 is enunciated; whose main objective is the inverse diffusionproblem. The theorem is demonstrated in the specific ...
    • Sobre el Teorema Tauberiano de W. Rudin 

      Mora, Marielos (2012-03-28)
      Using W. Rudin’s method it is shown that the tauberian theorem can be generalized to several kernels other than the Poisson kernel. We also proof an inverse of the tauberian theorem, that is, an abelian theorem.
    • Sobre la continuidad de la proyección métrica 

      Morales, José R. (2012-03-29)
      En esta nota mostraremos que la proyección métrica asociada a subespacios de Chebyshev en espacios de Banach que poseen la propiedad ( w M) es una aplicación continua.
    • Sobre la convexidad de la función de presión en el problema de la filtración no lineal 

      Grebenev, Vladimir N (2009-02-18)
      We prove the convexity of the pressure function v for the isotropic ideal gaz flow, based on the theorem about the zeros of the solution of the parabolic equation (1)Keywords: fluid mechanics, turbulence, parabolic equation
    • Sobre los números de Hal y Lah 

      Piza Volio, Eduardo (2009-02-20)
      In this article we study some properties concerning the Hal (H kn ) and Lah numbers(Lkn ), which are those that arise in the theory of combinatorics in association with the‘upward and downward factorial polynomials’ [x]n ...
    • Sobre una construcción de un monoide libre con identidad sobre un topos E con el objeto de los números naturales 

      Acuña Ortega, Osvaldo (2013-04-04)
      We proved that the free moniod with identify in X isM(X)= R \in \Omega^{NxNxX/R} es funcional y \_n \in N dom R=(n)} -----> ix  \Omega^{NxNxX/R}.
    • Some Aspects in n-dimensional almost Periodic functions iii 

      Arguedas Troyo, Vernor; Castro Fernández, Edwin (2011-04-29)
      The properties of almost periodical functions and some new results have been published in [CA1], [CA2] and [CA3] In this paper we show some new definitions in order to analize some singularities. For this functions we find ...
    • Some Ornstein-Uhlenbeck potentials for the one-dimensional Schrödinger operator part II: position-dependent drift 

      Cambronero, Santiago (2009-02-20)
      Se considera el operador de Schr¨odinger en el c´?rculo unitario, con un potencial detipo Ornstein – Uhlenbeck, cuyo factor tendencial depende de la posici´on. Se describela distribuci´on del primer valor propio peri´odico, ...
    • Some properties and inequalities related to the kth inverse moment of a positive binomial variate 

      Arias López, Rodrigo; Garrido, José (2009-02-19)
       We present some known properties of bk(n, p) the kth inverse moment of a positive binomial variate. Additional properties of this function and new bounds are derived. Keywords:  Probability, statistics, life contingencies, ...
    • Spatial interpolation of dry deposition using EOF models 

      Muñoz Hernández, Breda (2009-02-19)
      Random processes are monitored over space and time by a network of stations distributed across a spatial region. Auxiliary information is often gathered not only at the stations but at other points across the region. The ...
    • Special software for computing the special functions of wave catastrophes 

      Kryukovsky, Andrey S.; Lukin, Dmitry S.; Rogachev, Sergey V. (2015-01-01)
      The method of ordinary differential equations in the context of calculating the special functions of wave catastrophes is considered. Complementary numerical methods and algorithms are described. The paper shows approaches ...
    • Stadis dual: software y análisis de datos reales 

      Castillo Elizondo, William; González Varela, Jorge (2009-02-18)
      We present a computational implementation in MATHEMATICA of the dual Statis method and we use the method for the growth analysis of some kind of sugar cane.Keywords: multivariate date analysis, MATHEMATICA, multiple tables, ...
    • Structural Change Analysis in Linear Regression Model. 

      Pérez Salvador, Blanca Rosa; García Salazar, María Guadalupe (2010-07-02)
      Assuming that the observations are from normal distribution we obtain de distribution of the maximum likelihood ratio test if there is a change in the parameters at an unknown time and we find the maximum likehood estimators ...
    • Submartingalas finitas, teoremas de convergencia y métodos no standard 

      Lobo Segura, Jaime (2012-03-29)
      Se examinan dos teoremas clásicos de convergencia de submartingalas en tiempo discreto, los de convergencia casi segura y en L^1, usando los métodos del análisis no standard. Se realiza para ello un estudio previo sobre ...
    • SUPERIOR ORDER G -STRUCTURES 

      Rosales Ortega, José (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. 
    • Supplemental data acquisition tools for modeling environmental systems 

      Steidley, Carl W.; Bachnak, Rafic; Sadovski, Alexey (2009-02-20)
      The goal of our on-going research is to develop effective and reliable tools formodeling the environmental systems of the Gulf of Mexico. For example, our on-goingresearch into methodologies for the prediction of water ...
    • Symmetry orbits and their data-analytic properties 

      Viana, Marlos A.G. (2013-08-29)
      The concept of data indexed by finite symmetry orbits is reviewed within the data-analytic framework of symmetry studies. Data decompositions are discussed in terms of canonical projections and Plancherel’s formulas, and ...