• Equilibrio walrasiano en economías de intercambio 

      Acuña Ortega, Osvaldo; Ulate Montero, Fernán (2009-02-18)
      We present the aggregated excess demand functions in an exchange economy. We study the properties and the equilibrium price vector of the aggregated excess demand functions. We prove that the walrasian equilibrium is a ...
    • Estudio crítico del modelo de Manly-Parr 

      Poltronieri Vargas, Jorge (2009-02-18)
      Manly and Parr in 1968 obtain a model which give an estimation of the parameters of an animal population. The model presents some weakness on the specifications of the class of individual in the population. In the present ...
    • Funciones periódicas, cuasiperiódicas y clasificación de funciones 

      Castro Fernández, Edwin (2009-02-18)
      In this work we present some significative sets of functions. Following the ideas of [2] we introduce the almost periodic functions and its elementary properties. Based in [12] we give a clasification of the sets.
    • Generación de reglas estadísticas a partir de grandes bases de datos 

      Schektman, Yves; Trejos Zelaya, Javier; Troupé, Marylène (2009-02-18)
      Given a set of categorical variables, we want to predict one or more of them by the way rules. We propose an algorithm that (i) is guided by statistical results in a relational geometry where we use assymetrical association ...
    • Modelos minimales de la recta hiperreal 

      Alvarado Jiménez, William (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.
    • Particiones óptimas: características y calidad de sus aproximaciones 

      Labrèche, Said (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 ...