Article ID Journal Published Year Pages File Type
6420693 Applied Mathematics and Computation 2015 8 Pages PDF
Abstract

•A new concept resolving-power dominating sets is introduced.•The problem is proven to be NP-complete.•The resolving power domination number is studied for trees.

For a graph G(V,E) that models a facility or a multi-processor network, detection devices can be placed at vertices so as to identify the location of an intruder such as a thief or fire or saboteur or a faulty processor. Resolving-power dominating sets are of interest in electric networks when the latter helps in the detection of an intruder/fault at a vertex. We define a set S⊆V to be a resolving-power dominating set of G if it is resolving as well as a power-dominating set. The minimum cardinality of S is called resolving-power domination number. In this paper, we show that the problem is NP-complete for arbitrary graphs and that it remains NP-complete even when restricted to bipartite graphs. We provide lower bounds for the resolving-power domination number for trees and identify classes of trees that attain the lower bound. We also solve the problem for complete binary trees.

Related Topics
Physical Sciences and Engineering Mathematics Applied Mathematics
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