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math.CO2019
On the connected and weakly convex domination numbers
Magda Dettlaff, Magdalena Lemańska, Dorota Osula +1
In this paper we study relations between connected and weakly convex domination numbers. We show that in general the difference between these numbers can be arbitrarily large and w…
math.CO2017
Twin domination number of Tournaments
Dorota Osula, Rita Zuazua
Let be a digraph. A subset of is called a twin dominating set of if for every vertex , there exists vertices such that and…