Results 1 to 10 of about 8,714,403 (56)

On domination multisubdivision number of unicyclic graphs [PDF]

open access: yesOpuscula Mathematica, 2018
The paper continues the interesting study of the domination subdivision number and the domination multisubdivision number. On the basis of the constructive characterization of the trees with the domination subdivision number equal to 3 given in [H. Aram,
Joanna Raczek
doaj   +14 more sources

Total Domination Multisubdivision Number of a Graph [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2015
The domination multisubdivision number of a nonempty graph G was defined in [3] as the minimum positive integer k such that there exists an edge which must be subdivided k times to increase the domination number of G.
Avella-Alaminos Diana   +3 more
doaj   +7 more sources

Block Graphs with Large Paired Domination Multisubdivision Number [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2021
The paired domination multisubdivision number of a nonempty graph G, denoted by msdpr(G), is the smallest positive integer k such that there exists an edge which must be subdivided k times to increase the paired domination number of G.
Mynhardt Christina M., Raczek Joanna
doaj   +3 more sources

Domination Subdivision and Domination Multisubdivision Numbers of Graphs [PDF]

open access: yesDiscussiones Mathematicae Graph Theory, 2019
The domination subdivision number sd(G) of a graph G is the minimum number of edges that must be subdivided (where an edge can be subdivided at most once) in order to increase the domination number of G. It has been shown [10] that sd(T) ≤ 3 for any tree
Dettlaff Magda   +2 more
doaj   +6 more sources

Edge subdivision and edge multisubdivision versus some domination related parameters in generalized corona graphs [PDF]

open access: yesOpuscula Mathematica, 2016
Given a graph \(G=(V,E)\), the subdivision of an edge \(e=uv\in E(G)\) means the substitution of the edge \(e\) by a vertex \(x\) and the new edges \(ux\) and \(xv\).
Magda Dettlaff   +2 more
doaj   +1 more source

Changing of the domination number of a graph: edge multisubdivision and edge removal [PDF]

open access: yesMathematica Bohemica, 2017
For a graphical property $\mathcal{P}$ and a graph $G$, a subset $S$ of vertices of $G$ is a $\mathcal{P}$-set if the subgraph induced by $S$ has the property $\mathcal{P}$.
Vladimir Samodivkin
doaj   +1 more source
Some of the next articles are maybe not open access.

Paired domination subdivision and multisubdivision numbers of graphs

Journal of Combinatorial Mathematics and Combinatorial Computing, 2020
Summary: The paired domination subdivision number \(sd_{pr}(G)\) of a graph \(G\) is the minimum number of edges that must be subdivided (where an edge can be subdivided at most once) in order to increase the paired domination number of \(G\). We prove that the decision problem of the paired domination subdivision number is NP-complete even for ...
Joanna Raczek, Magda Dettlaff
openaire   +2 more sources

Double Roman Domination: A Survey

Mathematics, 2023
Janez Žerovnik, Darja Rupnik Poklukar
exaly  

Domination in fuzzy graphs – I

Pattern Recognition Letters, 1998
A Somasundaram
exaly  

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