Results 1 to 10 of about 8,253 (248)
Domination, independent domination number and 2-independence number in trees
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Dehgardi Nasrin +4 more
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Independent [1,2]-number versus independent domination number [PDF]
Abstract A [1; 2]-set S in a graph G is a vertex subset such that every vertex not in S has at least one and at most two neighbors in it. If the additional requirement that the set be independent is added, the existence of such sets is not guaranteed in every graph. In this paper we provide local conditions, depending on the degree of
Aleid, Sahar A. +2 more
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On domination and independent domination numbers of a graph [PDF]
AbstractFor a graph G, the definitions of domination number, denoted γ(G), and independent domination number, denoted i(G), are given, and the following results are obtained:Theorem. If G does not have an induced subgraph isomorphic to K1,3, then γ(G) = i(G).Corollary 1. For any graph G, γ(L(G))=i(L(G)), where L(G) is the line graph of G. (This extends
Robert B. Allan, Renu C. Laskar
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On the ratio of the domination number and the independent domination number in graphs
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Michitaka Furuya, Kenta Ozeki
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A note on the independent domination number in graphs
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Nader Jafari Rad, Lutz Volkmann
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On the Independent Domination Number of Regular Graphs
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Wayne Goddard +2 more
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Graphs with equal domination and independent domination numbers [PDF]
Let γ(G) and i(G) denote the domination number and independent domination number of a graph G. In this article, we establish a sufficient condition for a graph G to satisfy which yields some of the well known classical theorems as corollaries. Further, we also construct several families of graphs G satisfying γ(G) = i(G) using the sufficient condition.
Purnima Gupta +2 more
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On graphs with equal domination and independent domination numbers
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Jerzy Topp, Lutz Volkmann
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Graphs with equal Grundy domination and independence number
The Grundy domination number, ${γ_{\rm gr}}(G)$, of a graph $G$ is the maximum length of a sequence $(v_1,v_2,\ldots, v_k)$ of vertices in $G$ such that for every $i\in \{2,\ldots, k\}$, the closed neighborhood $N[v_i]$ contains a vertex that does not belong to any closed neighborhood $N[v_j]$, where ...
Gábor Bacsó +3 more
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On the Number of k‐Dominating Independent Sets [PDF]
AbstractWe study the existence and the number of k‐dominating independent sets in certain graph families. While the case namely the case of maximal independent sets—which is originated from Erdős and Moser—is widely investigated, much less is known in general.
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