Results 1 to 10 of about 379,510 (267)

On groups with many normal subgroups [PDF]

open access: yesInternational Journal of Group Theory, 2023
The structure of groups which are rich in normal subgroups has been investigated by several authors. Here, we prove that if a radical group G has normal deviation, which means that the set of its non-normal subgroups satisfies a very weak chain condition,
Alessio Russo, Mario Viscusi
doaj   +4 more sources

On non-normal cyclic subgroups of prime order or order 4 of finite groups

open access: yesOpen Mathematics, 2021
In this paper, we call a finite group GG an NLMNLM-group (NCMNCM-group, respectively) if every non-normal cyclic subgroup of prime order or order 4 (prime power order, respectively) in GG is contained in a non-normal maximal subgroup of GG.
Guo Pengfei, Han Zhangjia
doaj   +2 more sources

Anti-Homomorphism in Q-Fuzzy Subgroups and Normal Subgroups

open access: yesRatio Mathematica, 2023
Many researchers have explored the fuzzy set extensively. We propose the notion of anti-homomorphism in Q is fuzzy subgroups and normal subgroups. It is establish some findings in this study article and build the theory of anti-homomorphism in Q-fuzzy ...
R Jahir Hussain, S Palaniyandi
doaj   +1 more source

Anti Q-M-Fuzzy Normal Subgroups

open access: yesRatio Mathematica, 2023
Numerous subject fields have made use of the fuzzy idea. Both the M-fuzzy level subsets and the anti Q-M-fuzzy normal subgroups are defined. You will also discover some group Q-M-homomorphism and group anti Q-M-homomorphism results in this study.
S Palaniyandi, R Jahir Hussain
doaj   +1 more source

On Groups whose Subnormal Abelian Subgroups are Normal [PDF]

open access: yesAdvances in Group Theory and Applications, 2022
In the current paper we study the groups, whose subnormal abelian subgroups are normal. We obtained a quite detailed description of such hyperabelian groups with a periodic Baer radical.
L.A. Kurdachenko   +2 more
doaj   +1 more source

On the Normal Subgroups of $G_2(A)$ [PDF]

open access: yesTransactions of the American Mathematical Society, 1988
For a commutative local ring A, the authors determine the normal subgroups of the general linear group GL(2,A). Since every Artinian commutative ring A is a finite direct sum of local rings they are also able to derive a description for all normal subgroups of GL(2,A) for an Artinian ring A.
Costa, Douglas L., Keller, Gordon E.
openaire   +3 more sources

Finite non-nilpotent groups with few non-normal non-cyclic subgroups [PDF]

open access: yesInternational Journal of Group Theory, 2017
‎‎For a finite group $G$‎, ‎let $nu_{nc}(G)$ denote the number of conjugacy classes of non-normal non-cyclic subgroups of $G$‎. ‎We characterize the finite non-nilpotent groups whose all non-normal non-cyclic subgroups are conjugate‎.
Hamid Mousavi, Zahra Rezazadeh
doaj   +1 more source

On the group of homeomorphisms on R: A revisit

open access: yesApplied General Topology, 2022
In this article, we prove that the group of all increasing homeomorphisms on R has exactly five normal subgroups, and the group of all homeomorphisms on R has exactly four normal subgroups.
Kamaludheen Ali Akbar, T. Mubeena
doaj   +1 more source

Normal supercharacter theory of the dihedral groups [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2023
Diaconis ‎and ‎Isaacs ‎defined ‎the ‎‎supercharacter ‎theory ‎for ‎finite ‎groups ‎as a‎ ‎natural ‎generalization ‎of ‎the ‎classical ‎ordinary ‎character ‎theory ‎of ‎finite ‎groups.
Hadiseh Saydi
doaj   +1 more source

Conjugacy classes contained in normal subgroups: an overview [PDF]

open access: yesInternational Journal of Group Theory, 2018
We survey known results concerning how the conjugacy classes contained in a normal subgroup and their sizes exert an influence on the normal structure of a finite group.
Antonio Beltran   +2 more
doaj   +1 more source

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