X− Dominating colour transversals in graphs
Resumen
Let G = (X, Y,E) be a bipartite graph. A X-dominating set D ⊆X is called a X−dominating colour transversal set of a graph G if D is
a transversal of at least one $chi$−partition of G.The minimum cardinal-
ity of a X−dominating colour transversal set is called X−dominating
colour transversal number and is denoted by $chi_{dct}(G)$. We find the
bounds of X−dominating colour transversal number and characterize
the graphs attaining the bound.
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