Ara es mostren els items 8-19 de 19

    • Labeling Generating Matrices 

      Muntaner Batle, Francesc Antoni; Rius Font, Miquel; Ichishima, Rikio; Figueroa Centeno, Ramon M. (2006-09)
      Article
      Accés obert
      This paper is mainly devoted to generate (special)(super) edge-magic labelings of graphs using matrices. Matrices are used in order to find lower bounds for the number of non-isomorphic (special)(super) edge-magic ...
    • Magic coverings and the Kronecker product 

      López Masip, Susana Clara; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2014-11-01)
      Article
      Accés restringit per política de l'editorial
      In this paper we study a relationship existing among (super) magic coverings and the well known Kronecker product of matrices. We also introduce the concept of Z(n)-property for digraphs in order to study this relation ...
    • Magic coverings and the Kronecker product 

      López Masip, Susana Clara; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2009-12-11)
      Article
      Accés obert
      In this paper we study a relationship existing among (super) magic coverings and the well known Kronecker product of matrices. We also introduce the concept of Zn–property for digraphs in order to study this relation ...
    • On the structure of path-like trees 

      Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2007)
      Article
      Accés obert
      We study the structure of path-like trees. In order to do this, we introduce a set of trees that we call expandable trees. In this paper we also generalize the concept of path-like trees and we call such generalization ...
    • P Systems Computing the Period of Irreducible Markov Chains 

      Cardona Roca, Mónica; Colomer Cugat, M. Angeles; Riscos Núñez, Agustín; Rius Font, Miquel (2009-05-30)
      Article
      Accés obert
      It is well known that any irreducible and aperiodic Markov chain has exactly one stationary distribution, and for any arbitrary initial distribution, the sequence of distributions at time n converges to the stationary ...
    • Perfect edge-magic graphs 

      López Masip, Susana Clara; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2014-01-01)
      Article
      Accés restringit per política de l'editorial
      The study of the possible valences for edge-magic labelings of graphs has motivated us to introduce the concept of perfect edge-magic graphs. Intuitively speaking, an edge-magic graph is perfect edge-magic if all possible ...
    • Probabilitat i estadística : problemes 

      Burillo Puig, José; Miralles de la Asunción, Alicia; Pérez Mansilla, Sonia; Rius Font, Miquel; Serra, Oriol (Universitat Politècnica de Catalunya, 2004)
      Problema, exercici
      Accés obert
    • Problemas abiertos sobre etiquetamientos super edge-magic y temas relacionados 

      López Masip, Susana Clara; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2010)
      Text en actes de congrés
      Accés obert
      El tema de los etiquetamientos de grafos ha experimentado un fuerte impulso en los últimos 40 años, muestra de ello son los dos libros dedicados en exclusiva a ellos, un completísimo artículo ”survey” y más de 1000 ...
    • Queen Labelings 

      Bloom, Gary; Lampis, Michael; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2008)
      Article
      Accés obert
      We introduce and investigate the concept of Queen labeling a digraph and its connection to the well-known n-queens problem. In the general case we obtain an upper bound on the size of a queen graph and show that it is ...
    • Strong labelings of linear forests 

      Baca, Martin; Lin, Yu Qing; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2009-11-15)
      Article
      Accés obert
      A (p, q)-graph G is called super edge-magic if there exists a bijective function f : V (G) ∪ E(G) → {1, 2, . . . , p+q} such that f(u)+f(v)+f(uv) is a constant for each uv ∈ E(G) and f(V (G)) = {1, 2, . . . , p}. In ...
    • Super edge-magic models 

      López Masip, Susana Clara; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2011-04-20)
      Article
      Accés obert
      In this paper, we generalize the concept of super edge-magic graph by introducing the new concept of super edge-magic models.
    • The efficiency of tissue P systems with cell separation relies on the environment 

      Macias Ramos, Luis F.; Pérez Jiménez, Mario J.; Riscos Nuñez, Agustín; Rius Font, Miquel; Valencia Cabrera, Luis (Springer, 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The classical definition of tissue P systems includes a distinguished alphabet with the special assumption that its elements are available in an arbitrarily large amount of copies. These objects are shared in a distinguished ...