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Approximation to the study of water quality
(Applied Mathematical Sciences, 2018-03-25)
The main objective of this study is to propose a discrete approach to water quality study, applied to freshwater ecosystems, through the uctuations in the populations of benthic macroinvertebrates and their tolerance to pollution.
On the total k-domination in graphs
(Discussiones Mathematicae, 2018-01)
Let G = (V, E) be a graph; a set S V is a total k-domination number (G) is the minimum cardinality among all total k-dominating sets. In this paper we obtain several tight bounds for the total k-domination number of a ...