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math.CO2016
Certified domination
Magda Dettlaff, Magdalena Lemańska, Jerzy Topp +2
Imagine that we are given a set of officials and a set of civils. For each civil , there must be an official that can serve , and whenever any such $v…
math.CO2016
Coronas and domination subdivision number of a graph
Magda Dettlaff, Magdalena Lemańska, Jerzy Topp +1
In this paper, for a graph G and a family of partitions P of vertex neighborhoods of G, we define the general corona G \circ P of G. Among several properties of this new operation,…