Revista de Matemáticas 21(2)

 

Recent Submissions

  • INTERACTIVE MULTIOBJECTIVE TABU/SCATTER SEARCH BASED ON REFERENCE POINT 

    Beausoleil, Ricardo P. (2014-07-01)
    This paper presents multiobjective tabu/scatter search architecture with preference information based on reference points for problems of contin- uous nature. Features of this new version are: its interactive behavior, its ...

  • MORTALITY AMONG YOUNG NICARAGUAN IMMIGRANTS TO COSTA RICA: AN APPLICATION OF GEOGRAPHICALLY WEIGHTED STATISTICAL REGRESSION 

    Bonilla Carrión, Róger Enrique; Chavarría, Juan B. (2014-07-01)
    This paper applies a geographically weighted statistical regression (GWR) model to young Nicaraguan immigrant homicides in Costa Rica during the period 1998-2008 and identifies possible covariates. The pa- rameters for the ...

  • MATHEMATICAL MODEL FOR TOXIN TRANSPORT IN A MARINE FOOD CHAIN 

    Arbeláez A., Daniel; Ruiz V., Jorge Mauricio (2014-07-01)
    Some cases of poisoning by consumption of contaminated fish, like the Ciguatera poisoning, occur unexpectedly and they are not easy to detect previously since the fish that carry the toxin do not have appearance and/or ...

  • GEODESIC DISTRIBUTION IN GRAPH THEORY: KULLBACK-LEIBLER-SYMMETRIC 

    González, José Alejandro; Cascone, Marcos Henrique (2014-07-01)
    Kullback-Leibler information allow us to characterize a family of dis- tributions denominated Kullback-Leibler-Symmetric, which are distance functions and, under some restrictions, generate the Jensen’s equality shown by ...

  • NONLINEAR FILTERS TO RECONSTRUCT ELECTROCARDIOGRAM SIGNALS 

    Infante, Saba; Sánchez, Luis; Cedeño, Fernando (2014-07-01)
    ECG signals have been used in cardiac pathology to detect disease heart. The main objective of this paper is to propose signal filtering techniques to reduce noise, extract information, to reconstruct the states and ...

  • LENSING PROPERTIES OF THE EINASTO PROFILE IN TERMS OF THE MEIJER G FUNCTION 

    Retana Montenegro, Edwin; Frutos Alfaro, Francisco (2014-07-01)
    In N-body simulations of cold dark matter, it has been found that three-parameter models, particularly the Einasto profile, yield better fits to a wide range of dark matter haloes than two parameter models like the ...

  • 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.