Results 241 to 250 of about 398,878 (275)
Some of the next articles are maybe not open access.

INTERIOR TOTAL DOMINATING SETS IN GRAPHS

Advances and Applications in Discrete Mathematics, 2018
Summary: Let \(G = (V(G)\), \(E(G))\) be a simple graph. A total dominating set \(D\) of \(V(G)\) is an interior total dominating set of \(G\) if every \(v\in D\) is an interior vertex of \(G\). The minimum cardinality of an interior total dominating set of \(G\), denoted by \(\gamma_{lt}(G)\) is called an interior total domination number of \(G\).
Pacardo, Shiela Mae B., Rara, Helen M.
openaire   +1 more source

Graphs with few total dominating sets

Discrete Mathematics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marcin Krzywkowski, Stephan Wagner
openaire   +1 more source

Total Dominating Set Games

2005
In this paper, we consider cooperative games arising from total domination problem on graphs. We introduce two games, rigid total dominating set game and relaxed total dominating set game, and focus on their cores. First, a common necessary and sufficient condition for the balancedness of the two total dominating set games is obtained.
Qizhi Fang, Hye Kyung Kim, Dae Sik Lee
openaire   +1 more source

A Characterization of Graphs with Disjoint Dominating and Total Dominating Sets

Quaestiones Mathematicae, 2009
A dominating set of a graph is a set of vertices such that every vertex not in the set is adjacent to a vertex in the set, while a total dominating set of a graph is a set of vertices such that every vertex is adjacent to a vertex in the set. In this paper, we provide a constructive characterization of graphs whose vertex set can be partitioned into a ...
Henning, Michael A, Southey, Justin
openaire   +2 more sources

Connected Total Dominating Sets and Connected Total Domination Polynomials of Square of Paths

International Journal of Mathematics Trends and Technology, 2014
Let G be a simple connected graph of order n. Let Dct(G, i) be the family of connected total dominating sets in G with cardinality i. The polynomial Dct (G, x) = n i (G) ct    dct (G, i) x is called the connected total domination polynomial of G. In this paper, we obtain a recursive formula for dct ( 2 n P , i).
A Vijayan, T. Anitha Baby
openaire   +1 more source

Graphs with Disjoint Total Dominating Sets

2013
In the metadata of the chapter that will be visualized online, please replace the abstract with the following: “A classical result in domination theory is that the vertex set of every graph without isolates can be partitioned into two dominating sets.
Michael A. Henning, Anders Yeo
openaire   +1 more source

Approximation for minimum total dominating set

Proceedings of the 2nd International Conference on Interaction Sciences: Information Technology, Culture and Human, 2009
A total dominating set is a dominating set which induces a subgraph without isolated vertices. In this paper, we study the approximation of minimum total dominating set problem. First, we present a new analysis for one-step greedy algorithm with approximation ratio ln(δ-0.5)+1.5, where δ is the maximum degree of the given graph.
openaire   +1 more source

On the Number of Minimum Total Dominating Sets in Trees

Journal of Applied and Industrial Mathematics, 2023
Summary: The minimum total dominating set (MTDS) of a graph is a vertex subset \(D\) of minimum cardinality such that every vertex of the graph is adjacent to at least one vertex of \(D\). In this paper we obtain the sharp upper bound for the number of MTDS in the class of \(n\)-vertex 2-caterpillars.
openaire   +2 more sources

Approximation algorithms for the total dominating set problem

Journal of Combinatorial Optimization
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Limin Wang   +4 more
openaire   +2 more sources

Linear Separation of Total Dominating Sets in Graphs

2013
A total dominating set in a graph is a set of vertices such that every vertex of the graph has a neighbor in the set. We introduce and study graphs that admit non-negative real weights associated to their vertices so that a set of vertices is a total dominating set if and only if the sum of the corresponding weights exceeds a certain threshold. We show
Nina Chiarelli, Martin Milanič
openaire   +1 more source

Home - About - Disclaimer - Privacy