Results 1 to 10 of about 21,101 (124)

ALTERNATING AND SYMMETRIC GROUPS WITH EULERIAN GENERATING GRAPH [PDF]

open access: yesForum of Mathematics, Sigma, 2017
Given a finite group $G$ , the generating graph $\unicode[STIX]{x1D6E4}(G)$
ANDREA LUCCHINI, CLAUDE MARION
doaj   +3 more sources

Minimum Neighborhood of Alternating Group Graphs [PDF]

open access: yesIEEE Access, 2019
The minimum neighborhood and combinatorial property are two important indicators of fault tolerance of a multiprocessor system. Given a graph G, θG(q) is the minimum number of vertices adjacent to a set of q vertices of G (1 ≤ q ≤ |V(
Yanze Huang   +3 more
doaj   +2 more sources

Metric properties of Cayley graphs of alternating groups

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
A well known diameter search problem for finite groups with respect to its systems of generators is considered. The problem can be formulated as follows: find the diameter of a group over its system of generators.
M.S. Olshevskyi
doaj   +3 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

New example of strongly regular graph with parameters (81,30,9,12) and a simple group A5 as the automorphism group

open access: yesExamples and Counterexamples, 2023
A new strongly regular graph with parameters (81,30,9,12) is found as a graph invariant under certain subgroup of the full automorphism group of the previously known strongly regular graph discovered in 1981 by J. H. van Lint and A. Schrijver.
Dean Crnković, Andrea Švob
doaj   +1 more source

McKay graphs for alternating and classical groups [PDF]

open access: yesTransactions of the American Mathematical Society, 2021
Let $G$ be a finite group, and $ $ a nontrivial character of $G$. The McKay graph $\mathcal{M}(G, )$ has the irreducible characters of $G$ as vertices, with an edge from $ _1$ to $ _2$ if $ _2$ is a constituent of $ _1$. We study the diameters of McKay graphs for finite simple groups $G$.
Martin W. Liebeck   +2 more
openaire   +3 more sources

Divisibility Graph for Symmetric and Alternating Groups [PDF]

open access: yesCommunications in Algebra, 2015
Let $X$ be a non-empty set of positive integers and $X^*=X\setminus \{1\}$. The divisibility graph $D(X)$ has $X^*$ as the vertex set and there is an edge connecting $a$ and $b$ with $a, b\in X^*$ whenever $a$ divides $b$ or $b$ divides $a$. Let $X=cs~{G}$ be the set of conjugacy class sizes of a group $G$. In this case, we denote $D(cs~{G})$ by $D(G)$.
Abdolghafourian, Adeleh   +1 more
openaire   +2 more sources

Automorphism group of the complete alternating group graph [PDF]

open access: yesApplied Mathematics and Computation, 2017
9 pages, 1 ...
Huang, Xueyi, Huang, Qiongxiang
openaire   +3 more sources

A 2-arc Transitive Hexavalent Nonnormal Cayley Graph on A119

open access: yesMathematics, 2021
A Cayley graph Γ=Cay(G,S) is said to be normal if the base group G is normal in AutΓ. The concept of the normality of Cayley graphs was first proposed by M.Y.
Bo Ling, Wanting Li, Bengong Lou
doaj   +1 more source

2-Arc-transitive Cayley graphs on alternating groups

open access: yesJournal of Algebra, 2022
An interesting fact is that most of the known connected $2$-arc-transitive nonnormal Cayley graphs of small valency on finite simple groups are $(\mathrm{A}_{n+1},2)$-arc-transitive Cayley graphs on $\mathrm{A}_n$. This motivates the study of $2$-arc-transitive Cayley graphs on $\mathrm{A}_n$ for arbitrary valency.
Jiangmin Pan, Binzhou Xia, Fugang Yin
openaire   +2 more sources

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