Results 11 to 20 of about 17,112 (263)

Characterization of outerplanar graphs with equal 2-domination and domination numbers

open access: yesTheory and Applications of Graphs, 2022
A {\em $k$-domination number} of a graph $G$ is minimum cardinality of a $k$-dominating set of $G$, where a subset $S \subseteq V(G)$ is a {\em $k$-dominating set} if each vertex $v\in V(G)\setminus S$ is adjacent to at least $k$ vertices in $S$.
Naoki Matsumoto
doaj   +1 more source

On the Paired-Domination Subdivision Number of Trees

open access: yesMathematics, 2021
A paired-dominating set of a graph G without isolated vertices is a dominating set of vertices whose induced subgraph has perfect matching. The minimum cardinality of a paired-dominating set of G is called the paired-domination number γpr(G) of G.
Shouliu Wei   +4 more
doaj   +1 more source

On the edge geodetic and edge geodetic domination numbers of a graph [PDF]

open access: yesCommunications in Combinatorics and Optimization, 2020
In this paper, we study both concepts of geodetic dominating and edge geodetic dominating sets and derive some tight upper bounds on the edge geodetic and the edge geodetic domination numbers.
Vladimir Samodivkin
doaj   +1 more source

On the out-domination and in-domination numbers of a digraph

open access: yesDiscrete Mathematics, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gary Chartrand   +2 more
openaire   +2 more sources

The paired-domination and the upper paired-domination numbers of graphs [PDF]

open access: yesOpuscula Mathematica, 2015
In this paper we continue the study of paired-domination in graphs. A paired-dominating set, abbreviated PDS, of a graph \(G\) with no isolated vertex is a dominating set of vertices whose induced subgraph has a perfect matching.
Włodzimierz Ulatowski
doaj   +1 more source

Domination and Power Domination in Certain Families of Nanostars Dendrimers

open access: yesIEEE Access, 2020
Dendrimers are hyper-branched macromolecules having various applications in diverse fields like supra-molecular chemistry, drug delivery and nanotechnology etc.
Tanveer Iqbal   +2 more
doaj   +1 more source

On the Paired-Domination Subdivision Number of a Graph

open access: yesMathematics, 2021
In order to increase the paired-domination number of a graph G, the minimum number of edges that must be subdivided (where each edge in G can be subdivided no more than once) is called the paired-domination subdivision number sdγpr(G) of G.
Guoliang Hao   +4 more
doaj   +1 more source

The Domination Number of Grids [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2011
12 pages, 4 ...
Gonçalves, Daniel   +3 more
openaire   +3 more sources

On the domination search number

open access: yesDiscrete Applied Mathematics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fedor V. Fomin   +2 more
openaire   +2 more sources

Domination Subdivision Numbers

open access: yesDiscussiones Mathematicae Graph Theory, 2001
A set \(S\) of vertices of a graph \(G\) is a dominating set if every vertex of \(V(G)-S\) is adjacent to some vertex in \(S\). The domination number \(\gamma(G)\) is the minimum cardinality of a dominating set of \(G\), and the domination subdivision number \(\text{sd}_{\gamma}(G)\) is the minimum number of edges that must be subdivided (each edge in \
Teresa W. Haynes   +5 more
openaire   +1 more source

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