Results 21 to 30 of about 7,428 (262)

On graphs whose domination numbers equal their independent domination numbers

open access: yesElectronic Notes in Discrete Mathematics, 2003
Abstract In this paper, we extend a result due to R. B. Allan and R. C. Laskar on graphs whose independent domination numbers equal their domination numbers. We will consider finite simple graphs as treated in most of the standard text-books on Graph Theory (e.g., see D. B. West [1]). Let G = (V,E) be any graph and D ⊆ V. We let N(D) denote the set
Belmannu Devadas Acharya, Purnima Gupta
openaire   +1 more source

On Independent Domination in Planar Cubic Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2019
A set S of vertices in a graph G is an independent dominating set of G if S is an independent set and every vertex not in S is adjacent to a vertex in S.
Abrishami Gholamreza   +2 more
doaj   +1 more source

On the Total Outer k-Independent Domination Number of Graphs

open access: yesMathematics, 2020
A set of vertices of a graph G is a total dominating set if every vertex of G is adjacent to at least one vertex in such a set. We say that a total dominating set D is a total outer k-independent dominating set of G if the maximum degree of the subgraph ...
Abel Cabrera-Martínez   +3 more
doaj   +1 more source

An upper bound on the total outer-independent domination number of a tree [PDF]

open access: yesOpuscula Mathematica, 2012
A total outer-independent dominating set of a graph \(G=(V(G),E(G))\) is a set \(D\) of vertices of \(G\) such that every vertex of \(G\) has a neighbor in \(D\), and the set \(V(G) \setminus D\) is independent.
Marcin Krzywkowski
doaj   +1 more source

Changing and Unchanging 2-Rainbow Independent Domination

open access: yesIEEE Access, 2019
Domination number is of practical interest in several theoretical and applied scenes. In the problem of wireless networking, the dominating idea is used to deduce an efficient route within the adhoc mobilenetworks.
Xiaolong Shi   +6 more
doaj   +1 more source

On the Number of k‐Dominating Independent Sets [PDF]

open access: yesJournal of Graph Theory, 2016
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.
openaire   +5 more sources

Independent Domination Number of Operation Graph

open access: yesCGANT JOURNAL OF MATHEMATICS AND APPLICATIONS, 2020
Let G be a simple, undirected and connected graph. An independent set or stable set is a set of vertices in a graph in which no two of vertices are adjacent. A set D of vertices of graph G is called a dominating set if every vertex u ∈ V (G) − D is adjacent to some vertex v ∈ D.
Siti Aminatus Solehah   +2 more
openaire   +1 more source

On graphs with equal domination and independent domination numbers

open access: yesDiscrete Mathematics, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Topp, Jerzy, Volkmann, Lutz
openaire   +2 more sources

A note on the independent domination number versus the domination number in bipartite graphs [PDF]

open access: yesCzechoslovak Mathematical Journal, 2017
Accepted by Czechoslovak Mathematical ...
Wang, Shaohui, Wei, Bing
openaire   +2 more sources

On domination and independent domination numbers of a graph

open access: yesDiscrete Mathematics, 1978
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
Allan, Robert B., Laskar, Renu
openaire   +1 more source

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