Results 31 to 40 of about 2,369,458 (297)

Weighted Domination of Independent Sets [PDF]

open access: yesGraphs and Combinatorics, 2019
The {\em independent domination number} $ ^i(G)$ of a graph $G$ is the maximum, over all independent sets $I$, of the minimal number of vertices needed to dominate $I$. It is known \cite{abz} that in chordal graphs $ ^i$ is equal to $ $, the ordinary domination number.
Aharoni, Ron, Gorelik, Irina
openaire   +3 more sources

Application of an Extremal Result of Erdős and Gallai to the (n,k,t) Problem

open access: yesTheory and Applications of Graphs, 2017
An extremal result about vertex covers, attributed by Hajnal to Erdős and Gallai, is applied to prove the following: If n, k, and t are integers satisfying n ≥ k ≥ t ≥ 3 and k ≤ 2t - 2, and G is a graph with the minimum number of edges among graphs on n ...
Matt Noble   +3 more
doaj   +1 more source

Making a Dominating Set of a Graph Connected

open access: yesDiscussiones Mathematicae Graph Theory, 2018
Let G = (V,E) be a graph and S ⊆ V. We say that S is a dominating set of G, if each vertex in V \ S has a neighbor in S. Moreover, we say that S is a connected (respectively, 2-edge connected or 2-connected) dominating set of G if G[S] is connected ...
Li Hengzhe, Wu Baoyindureng, Yang Weihua
doaj   +1 more source

Minimum Neighborhood of Alternating Group Graphs

open access: yesIEEE Access, 2019
The minimum neighborhood and combinatorial property are two important indicators of fault tolerance of a multiprocessor system. Given a graph G, θG(q) is the minimum number of vertices adjacent to a set of q vertices of G (1 ≤ q ≤ |V(
Yanze Huang   +3 more
doaj   +1 more source

Coloring and Guarding Arrangements [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
Combinatorics
Prosenjit Bose   +6 more
doaj   +1 more source

On the independent set interdiction problem

open access: yesElectronic Journal of Graph Theory and Applications, 2015
The purpose of the independent set interdiction problem in the weighted graph $G$ is to determine a set of vertices $R^*$ such that the weight of the maximum independent set in $G-R^*$ is minimized.
Gholam Hassan Shirdel, Nasrin Kahkeshani
doaj   +1 more source

Recoverable Values for Independent Sets [PDF]

open access: yesRandom Structures & Algorithms, 2011
AbstractThe notion of recoverable value was advocated in the work of Feige, Immorlica, Mirrokni and Nazerzadeh (APPROX 2009) as a measure of quality for approximation algorithms. There, this concept was applied to facility location problems. In the current work we apply a similar framework to the maximum independent set problem (MIS).
Feige, Uriel, Reichman, Daniel
openaire   +2 more sources

Domination in m− polar soft fuzzy graphs

open access: yesRatio Mathematica, 2023
In this paper, we have introduced dominating set, minimal dominating set, independent dominating set, maximal independent dominating set in m − polar soft fuzzy graphs.
S Ramkumar, R Sridevi
doaj   +1 more source

Counting Maximal Distance-Independent Sets in Grid Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2013
Previous work on counting maximal independent sets for paths and certain 2-dimensional grids is extended in two directions: 3-dimensional grid graphs are included and, for some/any ℓ ∈ N, maximal distance-ℓ independent (or simply: maximal ℓ-independent ...
Euler Reinhardt   +2 more
doaj   +1 more source

A greedy approach to solve maximum independent set problem: Differential Malatya independent set algorithm

open access: yesEngineering Science and Technology, an International Journal
In this study, a method has been developed for solving the maximum independent set problem, which is one of the significant problems in graph theory. The maximum independent set problem is NP-hard for all types of graphs.
Furkan Öztemiz
doaj   +1 more source

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