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      On the bipartite vertex frustration of graphs 

      García Vázquez, Pedro (Elsevier, 2016-10)
      The bipartite vertex (resp. edge) frustration of a graph G, denoted by ψ(G) (resp. φ(G)), is the smallest number of ...
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      The r-dynamic edge coloring of a closed helm graph 

      Falcón Ganfornina, Raúl Manuel; Venkatachalam, Mathiyazhagan; Gowri, Sathasivam; Nandini, Gnanasekaran (Unión Matemática Argentina, 2023-11-22)
      As a natural generalization of the classical coloring problem in graph theory, the dynamic coloring problem deals with the ...