Results 11 to 20 of about 993,639 (182)

The reduction theorem for relatively maximal subgroups

open access: yesBulletin of Mathematical Sciences, 2022
Let [Formula: see text] be a class of finite groups closed under taking subgroups, homomorphic images and extensions. It is known that if [Formula: see text] is a normal subgroup of a finite group [Formula: see text] then the image of an [Formula: see ...
Wenbin Guo   +2 more
doaj   +1 more source

The recognition of finite simple groups with no elements of order $10$ by their element orders [PDF]

open access: yesInternational Journal of Group Theory, 2022
The spectrum of a finite group is the set of‎ ‎its element orders‎. ‎$H$ is said to be a finite cover of $G$ if $G$‎ ‎is a homomorphic image of $H$ and $H$ is finite‎.
Huaiyu He, Wujie Shi
doaj   +1 more source

‎$‎4‎$‎-Regular prime graphs of nonsolvable groups [PDF]

open access: yesInternational Journal of Group Theory, 2020
Let $G$ be a finite group and $\cd(G)$ denote the character degree set for $G$. The prime graph $\DG$ is a simple graph whose vertex set consists of prime divisors of elements in $\cd(G)$, denoted $\rho(G)$.
Donnie Kasyoki, Paul Oleche
doaj   +1 more source

On two generation methods for the simple linear group $PSL(3,7)$ [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2023
A finite group $G$ is said to be \textit{$(l,m, n)$-generated}, if it is a quotient group of the triangle group $T(l,m, n) = \left.$ In [J. Moori, $(p, q, r)$-generations for the Janko groups $J_{1}$ and $J_{2}$, Nova J.
Thekiso Seretlo
doaj   +1 more source

Equal-Square Graphs Associated with Finite Groups

open access: yesJournal of Mathematics, 2022
The graphical representation of finite groups is studied in this paper. For each finite group, a simple graph is associated for which the vertex set contains elements of group such that two distinct vertices x and y are adjacent iff x2=y2.
Shafiq Ur Rehman   +3 more
doaj   +1 more source

Remarks on Conjectures in Block Theory of Finite Groups

open access: yesAxioms, 2023
In this paper, we focus on Brauer’s height zero conjecture, Robinson’s conjecture, and Olsson’s conjecture regarding the direct product of finite groups and give relative versions of these conjectures by restricting them to the algebraic concept of the ...
Manal H. Algreagri, Ahmad M. Alghamdi
doaj   +1 more source

Quantitative characterization of finite simple groups: a complement [PDF]

open access: yesInternational Journal of Group Theory
In this paper, we summarize the research on the characterization of finite simple groups and the study of finite groups based on their ``set of element orders" and ``two orders" (the order of the group and the set of element orders). We also discuss some
Wujie Shi
doaj   +1 more source

Simple biset functors and double Burnside rings [PDF]

open access: yes, 2012
Let G be a finite group and let k be a field. Our purpose is to investigate the simple modules for the double Burnside ring kB(G,G). It turns out that they are evaluations at G of simple biset functors. For a fixed finite group H, we introduce a suitable
Bouc, Serge   +2 more
core   +2 more sources

On homogeneous spaces with finite anti-solvable stabilizers

open access: yesComptes Rendus. Mathématique, 2022
We say that a group is anti-solvable if all of its composition factors are non-abelian. We consider a particular family of anti-solvable finite groups containing the simple alternating groups for $n\ne 6$ and all 26 sporadic simple groups. We prove that,
Lucchini Arteche, Giancarlo
doaj   +1 more source

On groups with the same character degrees as almost simple groups with socle the Mathieu groups [PDF]

open access: yes, 2016
Let $G$ be a finite group and $cd(G)$ denote the set of complex irreducible character degrees of $G$. In this paper, we prove that if $G$ is a finite group and $H$ is an almost simple group whose socle is Mathieu group such that $cd(G) =cd(H)$, then ...
Alavi, Seyed Hassan   +2 more
core   +2 more sources

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