• Algoritmo e implementación del análisis factorial de correspondencias 

      Castillo Elizondo, William; Rodríguez Rojas, Oldemar (2009-02-18)
      In this article, it is presented an algorithm in pseudo-code for the Factor Analysis of Correspondence. Some comments on the implementationn on C++ are also developed. Finally, the method is illustrated by an example.
    • Algoritmos de reducción para bigráficas diferenciales 

      Boza Cordero, Juan (2012-03-29)
      Se estudian tres algoritmos de reducción para bigráficas diferenciales: regularización, eliminación de objetos y reducción de una flecha. En cada caso se determina la bigráfica resultante y la relación entre las respectivas ...
    • Analyis on the vascular epiphytes of tree ferns in a montane rain forest in Costa Rica 

      Bittner, Jens; Trejos Zelaya, Javier (2009-02-18)
      The relationships between epiphytes and host specifity are known. We investigated the relation between specific epiphytes and tree fern trunks. Only some epiphytes are frequent or very frequent on tree ferns. Most of the ...
    • Asignación óptima de recursos 

      Ávila Herrera, Juan Félix (2009-02-18)
      This work is on optimal assignation of resources. The proposed model is based on Net Flow Theory and here we give some indications for an efficient implementation of the model.
    • Precuantización en difeologías suaves 

      Torre, Carlos (2009-02-18)
      We define a prequantization in the category of smooth diffeological spaces ( a category which includes finite an infinite dimensional systems), in the case where the symplectic form is exact, extending, for this case, the ...
    • 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.
    • The Hankel transform of causal distributions 

      Aguirre T., Manuel A. (2012-03-29)
      In this note we evaluate the unidimensional distributional Hankel transform of \dfrac{x^{\alpha-1}_{+}}{\Gamma^{\alpha}},\dfrac{x^{\alpha-1}_{-}}{\Gamma^{\alpha}},dfrac{|x|^{\alpha-1}}{\Gamma^{\frac{\alpha}{2}}},dfrac{|x ...