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On the Number of k-Dominating Independent Sets
Authors
ZL Nagy
Publication date
1 January 2017
Publisher
'Wiley'
Doi
Cite
Abstract
We study the existence and the number of k-dominating independent sets in certain graph families. While the case k=1 namely the case of maximal independent sets-which is originated from Erdos and Moser-is widely investigated, much less is known in general. In this paper we settle the question for trees and prove that the maximum number of k-dominating independent sets in n-vertex graphs is between ck·22kn and ck'·2k+1n if k≥2, moreover the maximum number of 2-dominating independent sets in n-vertex graphs is between c·1.22n and c'·1.246n. Graph constructions containing a large number of k-dominating independent sets are coming from product graphs, complete bipartite graphs, and finite geometries. The product graph construction is associated with the number of certain Maximum Distance Separable (MDS) codes. © 2016 Wiley Periodicals, Inc
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oai:edit.elte.hu:10831/48796
Last time updated on 10/09/2020
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oai:real.mtak.hu:165140
Last time updated on 10/05/2023