Results 11 to 20 of about 312,664 (251)

Results on Relatively Prime Domination Number of Vertex Switching of Some Graphs

open access: yesRatio Mathematica, 2023
If a set S ⊆ V has at least two members and every pair of vertices u and v is such that (d(u), d(v)) = 1, then it is said to be a relatively prime dominating set.
A Jancy Vini, C Jayasekaran
doaj   +1 more source

Odd Prime Labeling For Some Arrow Related Graphs

open access: yesRatio Mathematica, 2023
In a graph G a mapping g is known as odd prime labeling , if g is a bijection from V to f1; 3; 5; ::::; 2jVj - 1g satisfying the condition that for each line xy in G the gcd of the labels of end points (g(x); g(y)) is one.
Gajalakshmi G, Meena S
doaj   +1 more source

Prime power and prime product distance graphs [PDF]

open access: yesDiscrete Applied Mathematics, 2019
A graph $G$ is a $k$-prime product distance graph if its vertices can be labeled with distinct integers such that for any two adjacent vertices, the difference of their labels is the product of at most $k$ primes. A graph has prime product number $ppn(G)=k$ if it is a $k$-prime product graph but not a $(k-1)$-prime product graph.
Kaneda, Yumi   +3 more
openaire   +3 more sources

Relatively Prime Detour Domination Number of Some Switching Graphs

open access: yesRatio Mathematica, 2023
In this paper, we introduce the concept of relatively prime detour domination number for switching graph. If a set S ⊆ V is a detour set, a dominating set with at least two elements, and has (deg(u), deg(v)) = 1 for each pair of vertices u and v, then it
C Jayasekaran, L. G. Binoja
doaj   +1 more source

ON FINITE PRIME DISTANCE GRAPHS

open access: yesIndian Journal of Pure and Applied Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Parthiban, A.   +2 more
openaire   +2 more sources

Characterization of some alternating groups by order and largest element order [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2022
The prime graph (or Gruenberg-Kegel graph) of a finite group is a well-known graph. In this paper, first, we investigate the structure of the finite groups with a non-complete prime graph.
Ali Mahmoudifar, Ayoub Gharibkhajeh
doaj   +1 more source

Minimal unavoidable sets of cycles in plane graphs [PDF]

open access: yesOpuscula Mathematica, 2018
A set \(S\) of cycles is minimal unavoidable in a graph family \(\cal{G}\) if each graph \(G \in \cal{G}\) contains a cycle from \(S\) and, for each proper subset \(S^{\prime}\subset S\), there exists an infinite subfamily \(\cal{G}^{\prime}\subseteq\cal{
Tomáš Madaras, Martina Tamášová
doaj   +1 more source

Unavoidable induced subgraphs in large graphs with no homogeneous sets [PDF]

open access: yes, 2015
A homogeneous set of an $n$-vertex graph is a set $X$ of vertices ($2\le |X|\le n-1$) such that every vertex not in $X$ is either complete or anticomplete to $X$. A graph is called prime if it has no homogeneous set.
Diestel   +12 more
core   +1 more source

On certain prime cordial families of graphs

open access: yesJournal of Taibah University for Science, 2020
Graph labelling is an important tool in modelling real life problems. In the present paper, different graph families are studied for prime cordial labelling.
Nazeran Idrees   +3 more
doaj   +1 more source

The prime number graph [PDF]

open access: yesMathematics of Computation, 1979
Let p n {p_n} denote the nth prime. The prime number graph is the set of lattice points ( n , p n ) (n,{p_n}) , n = 1 , 2 , … n = 1,2 ...
openaire   +1 more source

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