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Dominating vertex covers: the vertex-edge domination problem

Dominating vertex covers: the vertex-edge domination problem
Authors: Klostermeyer, William F.; Messinger, Margaret Ellen; Yeo, Anders;

Dominating vertex covers: the vertex-edge domination problem

Abstract

A variant of domination, namely, vertex-edge domination in which a set of vertices dominating the edges is studied. The vertex-edge domination number of a graph \(G\), \(\gamma_{\mathrm{ve}}(G)\), is defined to be the cardinality of a smallest set \(D\) such that there exists a vertex cover \(C\) of \(G\) such that each vertex in \(C\) is dominated by a vertex in \(D\). Upper bounds of the vertex-edge domination number for trees and non-trivial connected graphs and connected \(C_5\)-free graphs are known. In the paper under review, the authors provide an upper bound for cubic graphs as \(\frac{9n}{26}\), where \(n\) is order of graph \(G\). They also prove that it is NP-hard to decide if \(\gamma_{ve}(G)=\gamma(G)\) for bipartite graph \(G\).

Keywords

cubic graph, cubic graphs, dominating set, vertex cover, Vertex subsets with special properties (dominating sets, independent sets, cliques, etc.), vertex-edge dominating set, 05c69, Edge subsets with special properties (factorization, matching, partitioning, covering and packing, etc.), QA1-939, Computational difficulty of problems (lower bounds, completeness, difficulty of approximation, etc.), Mathematics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
Green
Published in a Diamond OA journal