Results 1 to 10 of about 157,688 (264)

On maximal subformations of n-multiple Ω-foliated formations of finite groups [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2021
Only finite groups are considered in the article. Among the classes of groups the central place is occupied by classes closed regarding homomorphic images and subdirect products which are called formations.
Sorokina, Marina M.   +1 more
doaj   +1 more source

The clique number of the intersection graph of a cyclic group of order with at most three prime factors [PDF]

open access: yesریاضی و جامعه, 2023
Let $G$ be a finite non-trivial group. The intersection graph $\Gamma(G)$, is a graph whose vertices are all proper non-trivial subgroups of $G$, and there is an edge between two distinct vertices $H $ and $K$ if and only if $H\cap K\neq 1$.
Seyyed Majid Jafarian Amiri   +1 more
doaj   +1 more source

Irreducible Characters with Cyclic Anchor Group

open access: yesAxioms, 2023
We consider G to be a finite group and p as a prime number. We fix ψ to be an irreducible character of G with its restriction to all p-regular elements of G and ψ0 to be an irreducible Brauer character.
Manal H. Algreagri, Ahmad M. Alghamdi
doaj   +1 more source

Bases in finite groups of small order

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
A subset $B$ of a group $G$ is called a basis of $G$ if each element $g\in G$ can be written as $g=ab$ for some elements $a,b\in B$. The smallest cardinality $|B|$ of a basis $B\subseteq G$ is called the basis size of $G$ and is denoted by $r[G]$.
T.O. Banakh, V.M. Gavrylkiv
doaj   +1 more source

Extensions of Finite Quantum Groups by Finite Groups [PDF]

open access: yesTransformation Groups, 2008
We give a necessary and sufficient condition for two Hopf algebras presented as central extensions to be isomorphic, in a suitable setting. We then study the question of isomorphism between the Hopf algebras constructed in 0707.0070v1 as quantum subgroups of quantum groups at roots of 1.
Andruskiewitsch, N., García, G. A.
openaire   +3 more sources

Boolean Lattices of $n$-multiply $\omega\sigma$-fibered Fitting Classes

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2022
Let N be the set of all natural numbers. Consider all definitions and results taking into account the partitioning of the area for determining satellites and directions.
O.V. Kamozina
doaj   +1 more source

On sublattices of the lattice of all ω-composition formations of finite groups [PDF]

open access: yesAdvances in Group Theory and Applications, 2018
It is proved that the lattice of all ω-local formations is a complete sublattice of the lattice of all ω-composition formations of finite groups.
Nikolay N. Vorob’ev
doaj   +1 more source

Finite groups whose intersection power graphs are toroidal and projective-planar

open access: yesOpen Mathematics, 2021
The intersection power graph of a finite group GG is the graph whose vertex set is GG, and two distinct vertices xx and yy are adjacent if either one of xx and yy is the identity element of GG, or ⟨x⟩∩⟨y⟩\langle x\rangle \cap \langle y\rangle is non ...
Li Huani, Ma Xuanlong, Fu Ruiqin
doaj   +1 more source

Bounds on the Number of Maximal Subgroups of Finite Groups: Applications

open access: yesMathematics, 2022
The determination of bounds for the number of maximal subgroups of a given index in a finite group is relevant to estimate the number of random elements needed to generate a group with a given probability.
Adolfo Ballester-Bolinches   +2 more
doaj   +1 more source

On the Norm of the Abelian p-Group-Residuals

open access: yesMathematics, 2021
Let G be a group. Dp(G)=⋂H≤GNG(H′(p)) is defined and, the properties of Dp(G) are investigated. It is proved that Dp(G)=P[A], where P=D(P) is the Sylow p-subgroup and A=N(A) is a Hall p′-subgroup of Dp(G), respectively.
Baojun Li, Yu Han, Lü Gong, Tong Jiang
doaj   +1 more source

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