Results 31 to 40 of about 30,352 (163)

The Metric Dimension and Local Metric Dimension of Relative Prime Graph

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2020
This study aims to determine the value of metric dimensions and local metric dimensions of relative prime graphs formed from modulo  integer rings, namely . As a vertex set is  and  if  and  are relatively prime.
Inna Kuswandari   +2 more
doaj   +1 more source

Prime Labelings of Snake Graphs

open access: yesThe PUMP Journal of Undergraduate Research, 2019
A prime labeling of a graph G with n vertices is a labeling of the vertices with distinct integers from the set {1, 2 ,..., n} such that the labels of any two adjacent vertices are relatively prime. In this paper, we introduce a snake graph, the fused union of identical cycles, and define a consecutive snake prime labeling for this new family of graphs.
Abigail Bigham   +4 more
openaire   +2 more sources

Triangle-free graphs which are minimal for some nonstable 4-vertex subset

open access: yesArab Journal of Mathematical Sciences, 2015
In a graph G, a module is a vertex subset M such that every vertex outside M is adjacent to all or none of M. A graph G is prime if ϕ, the single-vertex sets, and V(G) are the only modules in G.
Mohammad Alzohairi
doaj   +1 more source

Dominating sets and domination polynomials of certain graphs, II [PDF]

open access: yesOpuscula Mathematica, 2010
The domination polynomial of a graph \(G\) of order \(n\) is the polynomial \(D(G,x) = \sum _{i=\gamma(G)}^n d(G,i)x^i\), where \(d(G,i)\) is the number of dominating sets of \(G\) of size \(i\), and \(\gamma (G)\) is the domination number of \(G\).
Saeid Alikhani, Yee-hock Peng
doaj   +1 more source

Extending Undirected Graph Techniques to Directed Graphs via Category Theory

open access: yesMathematics
We use Category Theory to construct a ‘bridge’ relating directed graphs with undirected graphs, such that the notion of direction is preserved. Specifically, we provide an isomorphism between the category of simple directed graphs and a category we call ‘
Sebastian Pardo-Guerra   +4 more
doaj   +1 more source

Finite prime distance graphs and 2-odd graphs

open access: yesDiscrete Mathematics, 2013
A graph $G$ is a prime distance graph (respectively, a 2-odd graph) if its vertices can be labeled with distinct integers such that for any two adjacent vertices, the difference of their labels is prime (either 2 or odd). We prove that trees, cycles, and bipartite graphs are prime distance graphs, and that Dutch windmill graphs and paper mill graphs ...
Laison, Joshua D.   +2 more
openaire   +3 more sources

On Minimal Prime Graphs and Posets [PDF]

open access: yesOrder, 2009
We show that there are four infinite prime graphs such that every infinite prime graph with no infinite clique embeds one of these graphs. We derive a similar result for infinite prime posets with no infinite chain or no infinite antichain.
Pouzet, Maurice, Zaguia, Imed
openaire   +2 more sources

A new characterization of the automorphism groups of Mathieu groups

open access: yesOpen Mathematics, 2021
Let cd(G){\rm{cd}}\left(G) be the set of irreducible complex character degrees of a finite group GG. ρ(G)\rho \left(G) denotes the set of primes dividing degrees in cd(G){\rm{cd}}\left(G).
Liu Xin, Chen Guiyun, Yan Yanxiong
doaj   +1 more source

Exhaustive Enumeration of Spatial Prime Structures

open access: yesMachines
Prime structures are link chains with 0 DoF (degrees of freedom), not including subchains with 0 or fewer DoF, which are expected to be used in systematic kinematic and dynamic analyses of link mechanisms.
Takahiro Aruga, Nobuyuki Iwatsuki
doaj   +1 more source

THE POWER GRAPH REPRESENTATION FOR INTEGER MODULO GROUP WITH POWER PRIME ORDER

open access: yesBarekeng, 2023
There are many applications of graphs in various fields. Starting from chemical problems, such as the molecular shape of a compound to internet network problems, we can also use graphs to depict the abstract concept of a mathematical structure..
Lalu Riski Wirendra Putra   +4 more
doaj   +1 more source

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