Results 41 to 50 of about 8,731,938 (294)

Connected cototal domination number of a graph [PDF]

open access: yesTransactions on Combinatorics, 2012
A dominating set $D subseteq V$ of a graph $G = (V,E)$ is said to be a connected cototal dominating set if $langle D rangle$ is connected and $langle V-D rangle neq phi$, contains no isolated vertices.
B Basavanagoud, Sunilkumar M Hosamani
doaj  

The geodetic domination number of comb product graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2020
A subset S of vertices in graph G is called a geodetic set if every vertex in V(G) \ S lies on a shortest path between two vertices in S. A subset S of vertices in G is called a dominating set if every vertex in V(G) \  S is adjacent to a vertex in S ...
Dimas Agus Fahrudin, Suhadi Wido Saputro
doaj   +1 more source

Upper bounds for α-domination parameters [PDF]

open access: yes, 2009
We provide a new upper bound for the α-domination number in terms of a parameter α, 0 < α ≤ 1, and graph vertex degrees. This result generalises the well-known Caro-Roditty bound for the domination number of a graph.
Zverovich, Vadim   +2 more
core   +1 more source

Min-Max Dom-Saturation Number of a Tree [PDF]

open access: yes, 2010
In this paper we present a dynamic programming algorithm for determining the min-max domsaturation number of a ...
Sudha, S., Arumugam, S.
core   +1 more source

Isolate and independent domination number of some classes of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
In this paper we compute isolate domination number and independent domination number of some well known classes of graphs. Also a counter example is provided, which disprove the result on independent domination for Euler Totient Cayley graph proved by ...
Shilpa T. Bhangale, Madhukar M. Pawar
doaj   +1 more source

Characterization of Upper Detour Monophonic Domination Number

open access: yesCubo, 2020
This paper introduces the concept of \textit{upper detour monophonic domination number} of a graph. For a connected graph $G$ with vertex set $V(G)$, a set $M\subseteq V(G)$ is called minimal detour monophonic dominating set, if no proper subset of $M ...
M. Mohammed Abdul Khayyoom
doaj   +1 more source

All graphs with paired-domination number two less than their order [PDF]

open access: yesOpuscula Mathematica, 2013
Let \(G=(V,E)\) be a graph with no isolated vertices. A set \(S\subseteq V\) is a paired-dominating set of \(G\) if every vertex not in \(S\) is adjacent with some vertex in \(S\) and the subgraph induced by \(S\) contains a perfect matching.
Włodzimierz Ulatowski
doaj   +1 more source

Equitable eccentric domination in graphs

open access: yesRatio Mathematica, 2023
In this paper, we define equitable eccentric domination in graphs. An eccentric dominating set S ⊆ V (G) of a graph G(V, E) is called an equitable eccentric dominating set if for every v ∈ V − S there exist at least one vertex u ∈ V such that |d(v) − d(u)
A Riyaz Ur Rehman, A Mohamed Ismayil
doaj   +1 more source

The Sierpiński domination number

open access: yesArs Mathematica Contemporanea
Let $G$ and $H$ be graphs and let $f \colon V(G)\rightarrow V(H)$ be a function. The Sierpiński product of $G$ and $H$ with respect to $f$, denoted by $G \otimes _f H$, is defined as the graph on the vertex set $V(G)\times V(H)$, consisting of $|V(G)|$ copies of $H$; for every edge $gg'$ of $G$ there is an edge between copies $gH$ and $g'H$ of $H ...
Michael A. Henning   +3 more
openaire   +4 more sources

On $f$-domination number of a graph [PDF]

open access: yes, 1990
summary:Let $G=(V, E)$ be a simple graph. A subset $S\subseteq V$ is a dominating set of $G$, if for any vertex $u\in V-S$, there exists a vertex $v\in S$ such that $uv\in E$.
Liang Sun   +10 more
core   +1 more source

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