Now showing items 1-4 of 4

    • 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 ...
    • El "unravelling" para bigráficas diferenciales 

      Boza Cordero, Juan (2009-02-18)
      Here are examined the main properties of the algorithm called ¨unravelling¨ for differential  bigraphs. This algorithm was originally developed for differential graded categories and was useful in the proof the celebrated ...
    • Lobachevski descubridor de la Geometría Hiperbólica 

      Boza Cordero, Juan (2012-03-21)
      We offer an overview of the geometric studies of the russian mathematician N.I. Lobachevski (1792?1856), which culminated with the discovery of the hyperbolic geometry. We analize the role of the V Postulate in the euclidean ...
    • Recursive formulas for partition functions 

      Boza Cordero, Juan (2012-03-29)
      A family of functions, which share many properties with the classical partition function p(n), is studied. It is explained why these functions may be called “partition functions” and, in particular, some recursive formulas ...