Results 31 to 40 of about 8,369 (289)

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

Outer independent total double Italian domination number [PDF]

open access: yesComputer Science Journal of Moldova
If $G$ is a graph with vertex set $V(G)$, then let $N[u]$ be the closed neighborhood of the vertex $u\in V(G)$. A total double Italian dominating function (TDIDF) on a graph $G$ is a function $f:V(G)\rightarrow\{0,1,2,3\}$ satisfying (i) $f(N[u])\ge 3 ...
Seyed Mahmoud Sheikholeslami   +1 more
doaj   +1 more source

On graphs with equal domination and independent domination numbers

open access: yesDiscrete Mathematics, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jerzy Topp, Lutz Volkmann
openaire   +2 more sources

Graphs with equal Grundy domination and independence number

open access: yesDiscrete Optimization, 2023
The Grundy domination number, ${γ_{\rm gr}}(G)$, of a graph $G$ is the maximum length of a sequence $(v_1,v_2,\ldots, v_k)$ of vertices in $G$ such that for every $i\in \{2,\ldots, k\}$, the closed neighborhood $N[v_i]$ contains a vertex that does not belong to any closed neighborhood $N[v_j]$, where ...
Gábor Bacsó   +3 more
openaire   +4 more sources

On the Number of k‐Dominating Independent Sets [PDF]

open access: yesJournal of Graph Theory, 2016
AbstractWe study the existence and the number of k‐dominating independent sets in certain graph families. While the case namely the case of maximal independent sets—which is originated from Erdős and Moser—is widely investigated, much less is known in general.
openaire   +5 more sources

Independent Rainbow Domination Numbers of Generalized Petersen Graphs P(n,2) and P(n,3)

open access: yesMathematics, 2020
We obtain new results on independent 2- and 3-rainbow domination numbers of generalized Petersen graphs P ( n , k ) for certain values of n , k ∈ N . By suitably adjusting and applying a well established technique of tropical algebra (path
Boštjan Gabrovšek   +2 more
doaj   +1 more source

The total co-independent domination number of some graph operations [PDF]

open access: yes, 2022
[EN] A set D of vertices of a graph G is a total dominating set if every vertex of G is adjacent to at least one vertex of D. The total dominating set D is called a total co-independent dominating set if the subgraph induced by V (G)- D is edgeless.
González Yero, Ismael   +4 more
core   +1 more source

On the Outer Independent Double Roman Domination Number [PDF]

open access: yesBulletin of the Iranian Mathematical Society, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Doost Ali Mojdeh   +3 more
openaire   +1 more source

On independent domination numbers of grid and toroidal grid directed graphs [PDF]

open access: yesCommunications in Combinatorics and Optimization, 2019
A subset $S$ of vertex set $V(D)$ is an independent dominating set of a digraph $D$ if $S$ is both an independent and a dominating set of $D$. The independent domination number $i(D)$ is the minimum cardinality of an independent dominating set of $D ...
R. Shaheen
doaj   +1 more source

An improved upper bound on the independent double Roman domination number of trees

open access: yesAKCE International Journal of Graphs and Combinatorics, 2022
For a graph [Formula: see text] an independent double Roman dominating function (IDRDF) is a function [Formula: see text] having the property that: (i) every vertex [Formula: see text] with f(v) = 0 has a neighbor u with f(u) = 3 or at least two ...
F. Nahani Pour   +3 more
doaj   +1 more source

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