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Roman domination and independent Roman domination on graphs with maximum degree three

Discrete Applied Mathematics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
A. Luiz
semanticscholar   +2 more sources

On the double Roman domination of graphs

Applied Mathematics and Computation, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jun Yue
exaly   +3 more sources

On the Roman domination polynomials

2023
Summary: A Roman dominating function (RDF) on a graph \(G\) is a function \(f:V(G)\to \{0,1,2\}\) satisfying the condition that every vertex \(u\) with \(f(u) = 0\) is adjacent to at least one vertex \(v\) for which \(f(v) = 2\). The weight of an RDF \(f\) is the sum of the weights of the vertices under \(f\). The Roman domination number, \(\gamma_R(G)\
Jafari Rad, Nader   +1 more
openaire   +2 more sources

A Roman Domination Chain

Graphs and Combinatorics, 2015
For a simple graph \(G=(V,E)\), a Roman dominating function \(f:V\rightarrow \{0,1,2\}\) has the property that every vertex \(v\in V\) with \(f(v)=0\) has a neighbor \(u\) with \(f(u)=2\). The Roman domination number of \(G\) is the minimum weight of a Roman dominating function on \(G\), which is defined as \(f(V)=\sum_{v\in V} f(v)\).
Chellali, Mustapha   +4 more
openaire   +3 more sources

Roman and Total Domination

Quaestiones Mathematicae, 2015
A set S of vertices is a total dominating set of a graph G if every vertex of G is adjacent to some vertex in S. The minimum cardinality of a total dominating set is the total domination number γt(G). A Roman dominating function on a graph G is a function ƒ : V (G) → {0, 1, 2} satisfying the condition that every vertex u with ƒ(u) = 0 is adjacent to at
Chellali, Mustapha   +2 more
openaire   +3 more sources

Relations between the Roman k-domination and Roman domination numbers in graphs

Discrete Mathematics, Algorithms and Applications, 2014
Let G = (V, E) be a graph and let k be a positive integer. A Roman k-dominating function ( R k-DF) on G is a function f : V(G) → {0, 1, 2} such that every vertex u for which f(u) = 0 is adjacent to at least k vertices v1, v2, …, vk with f(vi) = 2 for i = 1, 2, …, k.
Ahmed Bouchou   +2 more
openaire   +2 more sources

Global Roman Domination in Trees

Graphs and Combinatorics, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Maryam Atapour   +2 more
openaire   +1 more source

Resolving Roman domination in graphs

Discrete Mathematics, Algorithms and Applications, 2021
Let [Formula: see text] be a graph and [Formula: see text] be a Roman dominating function defined on [Formula: see text]. Let [Formula: see text] be some ordering of the vertices of [Formula: see text]. For any [Formula: see text], [Formula: see text] is defined by [Formula: see text].
P. Roushini Leely Pushpam   +2 more
openaire   +1 more source

Roman domination-based spiking neural network for optimized EEG signal classification of four class motor imagery

Comput. Biol. Medicine
The Spiking Neural Network (SNN) is a third-generation neural network recognized for its energy efficiency and ability to process spatiotemporal information, closely imitating the behavioral mechanisms of biological neurons in the brain. SNN exhibit rich
Raja Sekhar Banovoth, Kadambari K V
semanticscholar   +1 more source

Extremal Bounds of the Atom-Bond Connectivity Index in Trees with a Fixed Roman Domination Number

Malaysian journal of mathematical sciences
Let G = (X, Y) be a simple, connected graph, where X denotes the set of vertices and Y represents the set of edges. The atom-bond connectivity (ABC) index, introduced by Estrada et al. [10], is a topological descriptor used in mathematical chemistry.
W. Ali, M. Husin, M. F. Nadeem
semanticscholar   +1 more source

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