Browsing by Author "65631938-b9d7-498d-be71-555cce45fdc8"

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    • Graphs admitting antimagic labeling for arbitrary sets of positive numbers 
      Matamala Vásquez, Martín; Zamora, José (Elsevier, 2020)
      Hartsfield and Ringel in 1990 conjectured that any connected graph with q >= 2 edges has an edge labeling f with labels in the set {1,..., q}, such that for every two distinct vertices u and v, f(u) not equal= f(v), where ...
    • Lines in bipartite graphs and in 2-metric spaces 
      Matamala Vásquez, Martín; Zamora, José (Wiley, 2020)
      The line generated by two distinct points, x and y, in a finite metric space M=(V,d), is the set of points given by {z is an element of V:d(x,y)=|d(x,z)+d(z,y)|ord(x,y)=|d(x,z)-d(z,y)|}. It is denoted by xy over bar M. A ...
    • Weighted antimagic labeling 
      Matamala, Martín; Zamora, José (Elsevier, 2018-08)
      A graph G = (V, E) is weighted-k-antimagic if for each w : V -> R, there is an injective function f : E -> {1,...,vertical bar E vertical bar + k} such that the following sums are all distinct: for each vertex u, Sigma(v:uv ...