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Double Roman Domination: A Survey

open access: yesMathematics, 2023
Since 2016, when the first paper of the double Roman domination appeared, the topic has received considerable attention in the literature. We survey known results on double Roman domination and some variations of the double Roman domination, and a list ...
Darja Rupnik Poklukar, Janez Žerovnik
doaj   +6 more sources

Survey on Roman {2}-Domination

open access: yesMathematics
The notion of Roman {2}-domination was introduced in 2016 as a variant of Roman domination, a concept inspired by a defending strategy used by the emperor Constantine (272–337 AD) to protect the Roman Empire.
Ahlam Almulhim   +2 more
doaj   +4 more sources

Perfect Roman Domination: Aspects of Enumeration and Parameterization

open access: yesAlgorithms
Perfect Roman Dominating Functions and Unique Response Roman Dominating Functions are two ways to translate perfect code into the framework of Roman Dominating Functions.
Kevin Mann, Henning Fernau
doaj   +3 more sources

Several Roman domination graph invariants on Kneser graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2023
This paper considers the following three Roman domination graph invariants on Kneser graphs: Roman domination, total Roman domination, and signed Roman domination.
Tatjana Zec, Milana Grbić
doaj   +3 more sources

Varieties of Roman domination IV

open access: yesAKCE International Journal of Graphs and Combinatorics
Roman domination was introduced in 2004 by Cockayne, Dreyer, Hedetniemi, and Hedetniemi. If [Formula: see text] is the vertex set of a graph G, then a function [Formula: see text] is a Roman dominating function if every vertex [Formula: see text] for ...
M. Chellali   +3 more
doaj   +2 more sources

Roman Domination of Cartesian Bundles of Cycles over Cycles

open access: yesMathematics
A Roman dominating function f of a graph G=(V,E) assigns labels from the set {0,1,2} to vertices such that every vertex labeled 0 has a neighbor labeled 2. The weight of an RDF f is defined as w(f)=∑v∈Vf(v), and the Roman domination number, γR(G), is the
Simon Brezovnik, Janez Žerovnik
doaj   +2 more sources

Some Results on the Strong Roman Domination Number of Graphs [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
Let G=(V,E) be a finite and simple graph of order n and maximum‎ ‎degree Δ(G)‎. ‎A strong Roman dominating function on a‎ ‎graph  G  is a function  f‎:V (G)→{0‎, ‎1,… ,‎[Δ(G)/2 ]‎+ ‎1}  satisfying the condition that every‎ ‎vertex v for which  f(v)=0  is
Akram Mahmoodi   +2 more
doaj   +1 more source

Total double Roman domination in graphs [PDF]

open access: yesCommunications in Combinatorics and Optimization, 2020
Let $G$ be a simple graph with vertex set $V$. A double Roman dominating function (DRDF) on $G$ is a function $f:V\rightarrow\{0,1,2,3\}$ satisfying that if $f(v)=0$, then the vertex $v$ must be adjacent to at least two vertices assigned $2$ or one ...
Guoliang Hao   +2 more
doaj   +1 more source

On the Quasi-Total Roman Domination Number of Graphs

open access: yesMathematics, 2021
Domination theory is a well-established topic in graph theory, as well as one of the most active research areas. Interest in this area is partly explained by its diversity of applications to real-world problems, such as facility location problems ...
Abel Cabrera Martínez   +2 more
doaj   +1 more source

On [k] -Roman domination in graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
For an integer [Formula: see text] let f be a function that assigns labels from the set [Formula: see text] to the vertices of a simple graph [Formula: see text].
N. Khalili   +3 more
doaj   +1 more source

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