Envíos recientes

  • Aproximación fractal para semivariogramas freáticos 

    Mercado Escalante, José Roberto; Lázaro Ch., P.; Brambila P., F.; Fuentes R., C. (2009-02-20)
    Hausdorff’s measure is integrated upon, and H¨older’s exponent is obtained as thecodimension DT ? D of the fractal in the Euclidian space in which it is immersed.This has resulted from the application of Daniell’s integral ...
  • Generación de métricas en análisis de datos 

    Bolaños, Fabricio; Trejos Zelaya, Javier (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, ...
  • Aplicación del método de selección de propuestas a la descomposición de tareas discretas de optimización de gran complejidad 

    Arzola Ruiz, José; Fiol Zulueta, Alberto (2009-02-20)
    In the paper the method of Selection of Proposals and it generalisation, the problemof the organization of structures of conciliating decisions among interrelated systemsare studied. Focuses are offered for the optimal ...
  • The Determinant of Matching Matrix in the Evaluation of Matching Polynomial 

    Wahid, Shanaz A. (2011-04-29)
    A characterization is given for graphs whose matching polynomial is the determinant of their matching matrices. The matching matrix is then modified and its relation with other graph polynomials is examined.
  • un modelo de equilibrio para economías de producción con análisis de actividad 

    Acuña Ortega, Osvaldo (2009-02-20)
    In this paper we study a general equilibrium model for economies with activitiesanalysis production technologies and we prove a global index theorem for regulareconomies.Keywords: Regular economy, economic equilibrium, ...
  • 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, ...
  • Preference structures, choice functions and their logical form 

    Rodríguez Galiano, María Isabel; González Pachón, Jacinto (2009-02-20)
    Binary relations and choice functions are two different tools for describing DMpreferences on a finite set of alternatives. Normal choice functions are the link betweenthese two tools. These choice functions are easily ...
  • Lemniscatas 3D 

    Ortega, Rafael; Paluszny, Marco (2009-02-20)
    A 3D lemniscate is a surface consisting of all points whose product of distances toa (finite) set of points or foci is constant. We introduce 3D lemniscates in the contextof geometric modelling and consider its deformation, ...
  • 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 ...