Results 31 to 40 of about 7,383,894 (206)

Maximum Second Zagreb Index Of Trees With Given Roman Domination Number [PDF]

open access: yesTransactions on Combinatorics, 2023
Chemical study regarding total $\pi$-electron energy with respect to conjugated molecules has focused on the second Zagreb index of graphs. Moreover, in the last half-century, it has gotten a lot of attention.
Ayu Ameliatul Ahmad Jamri   +3 more
doaj   +1 more source

Total Roman {2}-domination in graphs [PDF]

open access: yesQuaestiones Mathematicae, 2019
Given a graph $G=(V,E)$, a function $f:V\rightarrow \{0,1,2\}$ is a total Roman $\{2\}$-dominating function if: (1) every vertex $v\in V$ for which $f(v)=0$ satisfies that $\sum_{u\in N(v)}f(u)\geq 2$, where $N(v)$ represents the open neighborhood of $v$, and (2) every vertex $x\in V$ for which $f(x)\geq 1$ is adjacent to at least one vertex $y\in V ...
Suitberto Cabrera García   +3 more
openaire   +4 more sources

On Roman, Global and Restrained Domination in Graphs [PDF]

open access: yes, 2010
In this paper, we present new upper bounds for the global domination and Roman domination numbers and also prove that these results are asymptotically best possible.
Zverovich, Vadim   +3 more
core   +1 more source

Dominating the Direct Product of Two Graphs through Total Roman Strategies

open access: yesMathematics, 2020
Given a graph G without isolated vertices, a total Roman dominating function for G is a function f:V(G)→{0,1,2} such that every vertex u with f(u)=0 is adjacent to a vertex v with f(v)=2, and the set of vertices with positive labels induces a graph of ...
Abel Cabrera Martínez   +3 more
doaj   +1 more source

On the Roman Edge Domination Number of a Graph [PDF]

open access: yes, 2010
Let G be a simple graph with vertex set V (G) and edge set E(G)
K. Ebadi   +5 more
core   +1 more source

Singed Total Domatic Number of a Graph [PDF]

open access: yes, 2010
The maximum number of functions in a signed total dominating family on G is the signed total domatic number of G. In this paper, some properties related signed total domatic number and signed total domination number of a graph are studied and found the ...
Shailaja S. Shirkol   +2 more
core   +1 more source

Analysis of the presence of Eastern elements in Frankenstien Mary Shelly [PDF]

open access: yesادبیات تطبیقی, 2021
1. Introduction The valuable Frankenstein or Modern Prometheus novel written by Mary Shelley in the early nineteenth century is a Gothic-style science-fiction.
Najmeh Dorri, Shabnam Amiri
doaj   +1 more source

Anarchism and non-domination [PDF]

open access: yes, 2019
In this article we recover the classical anarchist deployment of republican tropes of non-domination, tyranny and slavery, to expose the conservative limits of the contemporary neo-Roman republican revival. For the anarchists, the modern nation state and
WAL Prichard (21872402)   +1 more
core   +6 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   +1 more source

Quasi-total Roman bondage number in graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2022
A quasi-total Roman dominating function (QTRD-function) on [Formula: see text] is a function [Formula: see text] such that (i) every vertex x for which f(x) = 0 is adjacent to at least one vertex v for which f(v) = 2, and (ii) if x is an isolated vertex ...
Huiqin Jiang, Zehui Shao
doaj   +1 more source

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