Results 1 to 10 of about 1,217,256 (282)

Average distance and connected domination

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
We give a tight upper bound on the average distance of a connected graph of given order in terms of its connected domination number. Our results are a strengthening of a result by DeLaViña, Pepper, and Waller [A note on dominating sets and average ...
P. Mafuta, S. Mukwembi
doaj   +4 more sources

Generalized connected domination in graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
As a generalization of connected domination in a graph G we consider domination by sets having at most k components. The order γ c k (G) of such a smallest set we relate to γ c (G), the order of a smallest connected dominating set. For a tree
M. Kouider, P.D. Vestergaard
doaj   +7 more sources

On graphs with equal total domination and connected domination numbers [PDF]

open access: yesApplied Mathematics Letters, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xuegang Chen
exaly   +4 more sources

Characterization of graphs with equal domination and connected domination numbers [PDF]

open access: yesDiscrete Mathematics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xuegang Chen
exaly   +4 more sources

On weakly connected domination in graphs II [PDF]

open access: yesDiscrete Mathematics, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Johannes H Hattingh
exaly   +4 more sources

Connected domination value in graphs [PDF]

open access: yesElectronic Journal of Graph Theory and Applications, 2021
In a connected graph G = (V,E), a set D ⊂ V is a connected dominating set if for every vertex v ∈ V \ D, there exists u ∈ D such that u and v are adjacent, and the subgraph〈D〉induced by D in G is connected.
Angsuman Das
doaj   +2 more sources

Algorithmic complexity of secure connected domination in graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Let be a simple, undirected, and connected graph. A connected (total) dominating set is a secure connected (total) dominating set of G, if for each there exists such that and is a connected (total) dominating set of G. The minimum cardinality of a secure
J. Pavan Kumar   +2 more
doaj   +2 more sources

Connected power domination in graphs [PDF]

open access: yesJournal of Combinatorial Optimization, 2019
The study of power domination in graphs arises from the problem of placing a minimum number of measurement devices in an electrical network while monitoring the entire network. A power dominating set of a graph is a set of vertices from which every vertex in the graph can be observed, following a set of rules for power system monitoring. In this paper,
Logan Smith   +2 more
exaly   +3 more sources

Traceability of connected domination critical graphs [PDF]

open access: yesApplied Mathematics and Computation, 2020
A dominating set in a graph $G$ is a set $S$ of vertices of $G$ such that every vertex outside $S$ is adjacent to a vertex in $S$. A connected dominating set in $G$ is a dominating set $S$ such that the subgraph $G[S]$ induced by $S$ is connected. The connected domination number of $G$, $γ_c(G)$, is the minimum cardinality of a connected dominating set
Michael Henning   +2 more
exaly   +4 more sources

Making a Dominating Set of a Graph Connected

open access: yesDiscussiones Mathematicae Graph Theory, 2018
Let G = (V,E) be a graph and S ⊆ V. We say that S is a dominating set of G, if each vertex in V \ S has a neighbor in S. Moreover, we say that S is a connected (respectively, 2-edge connected or 2-connected) dominating set of G if G[S] is connected ...
Li Hengzhe, Wu Baoyindureng, Yang Weihua
doaj   +2 more sources

Home - About - Disclaimer - Privacy