Exploració per autor "Ichishima, Rikio"

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    • Bounds on the size of super edge-magic graphs depending on the girth 

      Ichishima, Rikio; Muntaner Batle, Francesc Antoni; Rius Font, Miquel (2009-12-13)
      Report de recerca
      Accés obert
      Let G = (V,E) be a graph of order p and size q. It is known that if G is super edge-magic graph then q 2p−3. Furthermore, if G is super edge-magic and q = 2p−3, then the girth of G is 3. It is also known that if the ...

    • 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 ...