Results 41 to 50 of about 7,042,445 (296)

Total k-domination in Cartesian product graphs [PDF]

open access: yes, 2017
summary:Let $G$ be a $3$-connected triangulated disc of order $n$ with the boundary cycle $C$ of the outer face of $G$. Tokunaga (2013) conjectured that $G$ has a dominating set of cardinality at most $\frac 14(n+2)$.
Abd Aziz, Noor A'lawiah   +5 more
core   +1 more source

Disjunctive total domination in graphs [PDF]

open access: yesJournal of Combinatorial Optimization, 2014
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, $γ_t(G)$. A set $S$ of vertices in $G$ is a disjunctive total dominating set of $G$ if every vertex is adjacent to a vertex of $S$ or has at least two vertices in ...
Michael A. Henning, Viroshan Naicker
openaire   +4 more sources

On total domination and total equitable domination in graphs

open access: yesMalaya Journal of Matematik, 2018
A dominating set $D$ of a graph $G$ is called total if every vertex of $V(G)$ is adjacent to at least one vertex of $D$, equivalently if $N(D)=V(G)$ then $D$ is called total dominating set. A dominating set $D$ is called total equitable dominating set if it is total and for every vertex in $V(G)-D$ there exists a vertex in $D$ such that they are ...
null S. K. Vaidya, null A. D. Parmar
openaire   +1 more source

Further Results on the Total Roman Domination in Graphs

open access: yesMathematics, 2020
Let G be a graph without isolated vertices. A function f : V ( G ) → { 0 , 1 , 2 } is a total Roman dominating function on G if every vertex v ∈ V ( G ) for which f ( v ) = 0 is adjacent to at least one vertex u ...
Abel Cabrera Martínez   +2 more
doaj   +1 more source

Total Domination in Partitioned Graphs [PDF]

open access: yesGraphs and Combinatorics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Frendrup, Allan   +2 more
openaire   +4 more sources

Total Domination Stable Graphs [PDF]

open access: yes, 2019
In this paper, we study the total domination number and total domination polynomials of some graph and its square. We discuss nonzero real total domination roots of these graphs.
Shyama M.P., Anil Kumar V.
core   +1 more source

Equality of total domination and chromatic total domination in graphs

open access: yesInternational journal of health sciences, 2022
Let  be a simple, finite and undirected graph and without isolated vertex. A subset D of V is said to be dominating set if for every  in  there exist a vertex  in  such that  and  are adjacent. The minimum cardinality of a dominating set of  is called the domination number of  and is denoted by .
M. Angala Eswari, S. Balamurugan
openaire   +1 more source

On signed majority total domination in graphs [PDF]

open access: yes, 2005
summary:We initiate the study of signed majority total domination in graphs. Let $G=(V,E)$ be a simple graph. For any real valued function $f\: V \rightarrow \mathbb{R}$ and ${S\subseteq V}$, let $f(S)=\sum _{v\in S}f(v)$.
Sun, Liang   +2 more
core   +1 more source

Total domination versus paired domination [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2012
A dominating set of a graph G is a vertex subset that any vertex of G either belongs to or is adjacent to. A total dominating set is a dominating set whose induced subgraph does not contain isolated vertices. The minimal size of a total dominating set, the total domination number, is denoted by t.
openaire   +1 more source

Trees with equal total domination and total restrained domination numbers [PDF]

open access: yes, 2008
For a graph G = (V,E), a set S ⊆ V(G) is a total dominating set if it is dominating and both ⟨S⟩ has no isolated vertices. The cardinality of a minimum total dominating set in G is the total domination number.
Shiu, Wai, Chen, Hong-Yu, Chen, Xue-Gang
core   +1 more source

Home - About - Disclaimer - Privacy