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Locating and total dominating sets in trees

open access: yesDiscrete Applied Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Haynes, Teresa W.   +2 more
openaire   +4 more sources

(Total) Vector Domination for Graphs with Bounded Branchwidth

open access: yes, 2013
Given a graph $G=(V,E)$ of order $n$ and an $n$-dimensional non-negative vector $d=(d(1),d(2),\ldots,d(n))$, called demand vector, the vector domination (resp., total vector domination) is the problem of finding a minimum $S\subseteq V$ such that every ...
B. Courcelle   +26 more
core   +1 more source

Hamiltonicity of 3tEC Graphs with α=κ+1

open access: yesJournal of Mathematics, 2021
A set S of vertices in a graph G is a total dominating set of G if every vertex of G is adjacent to some vertex in S. The minimum cardinality of a total dominating set of G is the total domination number γtG of G.
Huanying He, Xinhui An, Zongjun Zhao
doaj   +1 more source

Locating and Total Dominating Sets of Direct Products of Complete Graphs [PDF]

open access: yes, 2011
A set S of vertices in a graph G = (V,E) is a metric-locating-total dominating set of G if every vertex of V is adjacent to a vertex in S and for every u ≠ v in V there is a vertex x in S such that d(u,x) ≠ d(v,x).
Iswadi, Hazrul
core  

Trees with unique minimum total dominating sets

open access: yesDiscussiones Mathematicae Graph Theory, 2002
A set \(S\) of vertices of a graph \(G\) is a total dominating set if every vertex of \(G\) is adjacent to some vertex in \(S\). Three equivalent conditions for a tree to have a unique minimum total dominating set together with a constructive characterization of such trees are given.
Haynes, Teresa W., Henning, Michael A.
openaire   +1 more source

3-Tuple Total Domination Number of Rook’s Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
A k-tuple total dominating set (kTDS) of a graph G is a set S of vertices in which every vertex in G is adjacent to at least k vertices in S. The minimum size of a kTDS is called the k-tuple total dominating number and it is denoted by γ×k,t(G).
Pahlavsay Behnaz   +2 more
doaj   +1 more source

An Approximation Algorithm for a Variant of Dominating Set Problem

open access: yesAxioms, 2023
In this paper, we consider a variant of dominating set problem, i.e., the total dominating set problem. Given an undirected graph G=(V,E), a subset of vertices T⊆V is called a total dominating set if every vertex in V is adjacent to at least one vertex ...
Limin Wang, Wenqi Wang
doaj   +1 more source

On the total domatic number of regular graphs [PDF]

open access: yesTransactions on Combinatorics, 2012
A set S of vertices of a graph G = (V;E) without isolated vertex is a total dominating set if every vertex of V (G) is adjacent to some vertex in S.
H. Aram   +2 more
doaj  

An upper bound on the total outer-independent domination number of a tree [PDF]

open access: yesOpuscula Mathematica, 2012
A total outer-independent dominating set of a graph \(G=(V(G),E(G))\) is a set \(D\) of vertices of \(G\) such that every vertex of \(G\) has a neighbor in \(D\), and the set \(V(G) \setminus D\) is independent.
Marcin Krzywkowski
doaj   +1 more source

Bounding the Porous Exponential Domination Number of Apollonian Networks [PDF]

open access: yes, 2014
Given a graph G with vertex set V, a subset S of V is a dominating set if every vertex in V is either in S or adjacent to some vertex in S. The size of a smallest dominating set is called the domination number of G.
Beverly, Joshua   +3 more
core  

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