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Protection of Lexicographic Product Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
In this paper, we study the weak Roman domination number and the secure domination number of lexicographic product graphs. In particular, we show that these two parameters coincide for almost all lexicographic product graphs. Furthermore, we obtain tight
Klein Douglas J.   +1 more
doaj   +4 more sources

Nonrepetitive colorings of lexicographic product of graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
Special issue PRIMA ...
Balázs Keszegh   +2 more
doaj   +8 more sources

Total Protection of Lexicographic Product Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
Given a graph G with vertex set V (G), a function f : V (G) → {0, 1, 2} is said to be a total dominating function if Σu∈N(v) f(u) > 0 for every v ∈ V (G), where N(v) denotes the open neighbourhood of v. Let Vi = {x ∈ V (G) : f(x) = i}. A total dominating
Martínez Abel Cabrera   +1 more
doaj   +4 more sources

The Spectrum of Weighted Lexicographic Product on Self-Complementary Graphs

open access: yesIEEE Access, 2023
The lexicographic product, a powerful binary operation in graph theory, offers methods for creating a novel graph by establishing connections between each vertex of one graph and every vertex of another.
Xiaoxiao Zhang, Zenghui Fang
doaj   +2 more sources

Radio Labelings of Lexicographic Product of Some Graphs

open access: yesJournal of Mathematics, 2021
Labeling of graphs has defined many variations in the literature, e.g., graceful, harmonious, and radio labeling. Secrecy of data in data sciences and in information technology is very necessary as well as the accuracy of data transmission and different ...
Muhammad Shahbaz Aasi   +3 more
doaj   +2 more sources

Double domination in lexicographic product graphs [PDF]

open access: yesDiscrete Applied Mathematics, 2020
In a graph G , a vertex dominates itself and its neighbours. A subset S ⊆ V ( G ) is said to be a double dominating set of G if S dominates every vertex of G at least twice.
Abel Cabrera Martinez   +2 more
exaly   +2 more sources

Computing Correlation among the Graphs under Lexicographic Product via Zagreb Indices

open access: yesJournal of Chemistry, 2021
A topological index (TI) is a numerical descriptor of a molecule structure or graph that predicts its different physical, biological, and chemical properties in a theoretical way avoiding the difficult and costly procedures of chemical labs.
Muhammad Javaid   +3 more
doaj   +2 more sources

Total Roman domination in the lexicographic product of graphs

open access: yesDiscrete Applied Mathematics, 2019
A total Roman dominating function of a graph G = ( V , E ) is a function f : V ( G ) → { 0 , 1 , 2 } such that for every vertex v with f ( v ) = 0 there exists a vertex u adjacent to v with f ( u ) = 2 , and such that the subgraph induced by the set of ...
Dorota Kuziak
exaly   +2 more sources

Operations on Neutrosophic Vague Soft Graphs [PDF]

open access: yesNeutrosophic Sets and Systems, 2022
This article concerns with the neutrosophic vague soft graphs for treating neutrosophic vague soft information by employing the theory of neutrosophic vague soft sets with graphs.
S. Satham Hussain   +3 more
doaj   +1 more source

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