Results 11 to 20 of about 14,233,339 (289)

On the Secure Total Domination Number of Graphs [PDF]

open access: yesSymmetry, 2019
A total dominating set D of a graph G is said to be a secure total dominating set if for every vertex u ∈ V ( G ) \ D , there exists a vertex v ∈ D , which is adjacent to u, such that ( D \ { v } ) ∪ { u } is a total dominating set as well.
Abel Cabrera Martínez   +2 more
core   +3 more sources

On graphs for which the connected domination number is at most the total domination number [PDF]

open access: yesDiscrete Applied Mathematics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Schaudt, Oliver
openaire   +4 more sources

Bounds on the Locating-Total Domination Number in Trees

open access: yesDiscussiones Mathematicae Graph Theory, 2020
Given a graph G = (V, E) with no isolated vertex, a subset S of V is called a total dominating set of G if every vertex in V has a neighbor in S. A total dominating set S is called a locating-total dominating set if for each pair of distinct vertices u ...
Wang Kun, Ning Wenjie, Lu Mei
doaj   +2 more sources

Further Results on Total Edge-Vertex Domination

open access: yesJournal of Mathematics, 2022
Total edge-vertex domination is a new total domination-type parameter. In this paper, the author shows that determining the total edge-vertex domination number in bipartite planar graphs is NP-complete.
Abdulgani Şahin
doaj   +2 more sources

Total domination number of the conjunction of graphs [PDF]

open access: yesDiscrete Mathematics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zwierzchowski, Maciej
openaire   +2 more sources

Bounds On The Disjunctive Total Domination Number Of A Tree

open access: yesDiscussiones Mathematicae Graph Theory, 2016
Let G be a graph with no isolated vertex. In this paper, we study a parameter that is a relaxation of arguably the most important domination parameter, namely the total domination number, γt(G).
Henning Michael A., Naicker Viroshan
doaj   +2 more sources

The Domination Parameters on a kind of the regular honeycomb structure [PDF]

open access: yesComputer Science Journal of Moldova, 2022
The honeycomb mesh, based on hexagonal structure, has enormous applications in chemistry and engineering. A major challenge in this field is to understand the unique properties of honeycomb structures, which depend on their properties of topology. One
Fateme Movahedi   +2 more
doaj   +1 more source

On upper bounds for total $k$-domination number via the probabilistic method [PDF]

open access: yes, 2023
summary:For a fixed positive integer $k$ and $G=(V, E)$ a connected graph of order $n$, whose minimum vertex degree is at least $k$, a set $S\subseteq V$ is a total $k$-dominating set, also known as a $k$-tuple total dominating set, if every vertex $v\in
Cruz-Suárez, Hugo   +2 more
core   +1 more source

On graphs with equal total domination and Grundy total domination numbers

open access: yesAequationes mathematicae, 2021
A sequence $(v_1,\ldots ,v_k)$ of vertices in a graph $G$ without isolated vertices is called a total dominating sequence if every vertex $v_i$ in the sequence totally dominates at least one vertex that was not totally dominated by $\{v_1,\ldots , v_{i-1}\}$ and $\{v_1,\ldots ,v_k\}$ is a total dominating set of $G$.
Tanja Dravec   +3 more
openaire   +2 more sources

Hop total Roman domination in graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
In this article, we initiate a study of hop total Roman domination defined as follows: a hop total Roman dominating function (HTRDF) on a graph [Formula: see text] is a function [Formula: see text] such that for every vertex u with f(u) = 0 there exists ...
H. Abdollahzadeh Ahangar   +3 more
doaj   +1 more source

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