Results 41 to 50 of about 9,423,140 (336)

Game domination number

open access: yesDiscrete Mathematics, 2002
AbstractThe game domination number of a (simple, undirected) graph is defined by the following game. Two players, A and D, orient the edges of the graph alternately until all edges are oriented. Player D starts the game, and his goal is to decrease the domination number of the resulting digraph, while A is trying to increase it.
Béla Bollobás   +3 more
openaire   +2 more sources

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

Domination cover number of graphs [PDF]

open access: yesDiscrete Mathematics, Algorithms and Applications, 2019
A set [Formula: see text] for the graph [Formula: see text] is called a dominating set if any vertex [Formula: see text] has at least one neighbor in [Formula: see text]. Fomin et al. [Combinatorial bounds via measure and conquer: Bounding minimal dominating sets and applications, ACM Transactions on Algorithms (TALG) 5(1) (2008) 9] gave an algorithm ...
M. Alambardar Meybodi   +3 more
openaire   +3 more sources

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  

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

Resolving domination number of helm graph and it’s operation

open access: yesJournal of Physics: Conference Series, 2020
Let G be a connected graph. Dominating set is a set of vertices which each vertex D has at least one neighbor in G. The minimum cardinality of D is called the domination number G(γ(G)).
A. N. Hayyu   +4 more
semanticscholar   +1 more source

Reducing the domination number of graphs via edge contractions [PDF]

open access: yesInternational Symposium on Mathematical Foundations of Computer Science, 2019
In this paper, we study the following problem: given a connected graph $G$, can we reduce the domination number of $G$ by at least one using $k$ edge contractions, for some fixed integer $k \geq 0$?
Esther Galby, Paloma T. Lima, B. Ries
semanticscholar   +1 more source

The 3-Rainbow Domination Number of the Cartesian Product of Cycles

open access: yesMathematics, 2020
We have studied the k-rainbow domination number of C n □ C m for k ≥ 4 (Gao et al. 2019), in which we present the 3-rainbow domination number of C n □ C m , which should be bounded above by the four-rainbow domination number of C n □ C m .
Hong Gao, Changqing Xi, Yuansheng Yang
semanticscholar   +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

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

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