Results 51 to 60 of about 7,194,939 (348)

Local Search for Minimum Weight Dominating Set with Two-Level Configuration Checking and Frequency Based Scoring Function (Extended Abstract) [PDF]

open access: yesInternational Joint Conference on Artificial Intelligence, 2017
The Minimum Weight Dominating Set (MWDS) problem is an important generalization of the Minimum Dominating Set (MDS) problem with extensive applications.
Yiyuan Wang, Shaowei Cai, Minghao Yin
semanticscholar   +1 more source

Locating-dominating sets in hypergraphs [PDF]

open access: yesPeriodica Mathematica Hungarica, 2016
A hypergraph is a generalization of a graph where edges can connect any number of vertices. In this paper, we extend the study of locating-dominating sets to hypergraphs. Along with some basic results, sharp bounds for the location-domination number of hypergraphs in general and exact values with specified conditions are investigated.
Muhammad Salman   +3 more
openaire   +3 more sources

Minimal graphs with disjoint dominating and paired-dominating sets

open access: yesDiscussiones Mathematicae Graph Theory, 2021
A subset $D\subseteq V_G$ is a dominating set of $G$ if every vertex in $V_G-D$ has a~neighbor in $D$, while $D$ is a paired-dominating set of $G$ if $D$ is a~dominating set and the subgraph induced by $D$ contains a perfect matching. A graph $G$ is a $D\!P\!D\!P$-graph if it has a pair $(D,P)$ of disjoint sets of vertices of $G$ such that $D$ is a ...
Michael A. Henning, Jerzy Topp
openaire   +7 more sources

Graphs whose vertex set can be partitioned into a total dominating set and an independent dominating set [PDF]

open access: yesOpuscula Mathematica
A graph \(G\) whose vertex set can be partitioned into a total dominating set and an independent dominating set is called a TI-graph. We give constructions that yield infinite families of graphs that are TI-graphs, as well as constructions that yield ...
Teresa W. Haynes, Michael A. Henning
doaj   +1 more source

Independent sets with domination constraints [PDF]

open access: yesDiscrete Applied Mathematics, 1998
AbstractA ρ-independent set S in a graph is parameterized by a set ρ of non-negative integers that constrains how the independent set S can dominate the remaining vertices (∀v∉S:|N(v)∩S|∈ρ.) For all values of ρ, we classify as either NP-complete or polynomial-time solvable the problems of deciding if a given graph has a ρ-independent set. We complement
Magnús M. Halldórsson   +3 more
openaire   +3 more sources

Dominating sets in plane triangulations

open access: yesDiscrete Mathematics, 2010
In 1996, Matheson and Tarjan conjectured that any n-vertex triangulation with n sufficiently large has a dominating set of size at most n/4. We prove this for graphs of maximum degree 6.
Erika L. C. King, Michael J. Pelsmajer
openaire   +3 more sources

Lossy Kernels for Connected Dominating Set on Sparse Graphs [PDF]

open access: yesSymposium on Theoretical Aspects of Computer Science, 2017
Given a graph $G$ and $k\in{\mathbb N}$, the Dominating Set problem asks for a subset $D$ of $k$ vertices such that every vertex in $G$ is either in $D$ or has a neighbor in $D$.
E. Eiben   +3 more
semanticscholar   +1 more source

Efficient and Perfect domination on circular-arc graphs [PDF]

open access: yes, 2015
Given a graph $G = (V,E)$, a \emph{perfect dominating set} is a subset of vertices $V' \subseteq V(G)$ such that each vertex $v \in V(G)\setminus V'$ is dominated by exactly one vertex $v' \in V'$.
Lin, Min Chih   +2 more
core   +2 more sources

On graphs with disjoint dominating and 2-dominating sets [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2013
A DD2-pair of a graph G is a pair (D,D2) of disjoint sets of vertices of G such that D is a dominating set and D2 is a 2-dominating set of G. Although there are infinitely many graphs that do not contain a DD2-pair, we show that every graph with minimum degree at least two has a DD2-pair.
Michael A. Henning, Douglas F. Rall
openaire   +2 more sources

Domination, Eternal Domination, and Clique Covering

open access: yesDiscussiones Mathematicae Graph Theory, 2015
Eternal and m-eternal domination are concerned with using mobile guards to protect a graph against infinite sequences of attacks at vertices. Eternal domination allows one guard to move per attack, whereas more than one guard may move per attack in the m-
Klostermeyer William F., Mynhardt C.M.
doaj   +1 more source

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