Results 11 to 20 of about 52,393 (181)

Normalizers and centralizers of subgroups in non-Abelian groups of small order [PDF]

open access: yesКомпьютерные исследования и моделирование, 2012
By applying the computer program, which is created by authors, we obtain the exact representation of normalizers and centralizers of all nontrivial subgroups in non-Abelian groups G under the condition |G|20.
Ilya Anatolievih Shilin   +1 more
doaj   +1 more source

Influence of complemented subgroups on the structure of finite groups [PDF]

open access: yesInternational Journal of Group Theory, 2021
P‎. ‎Hall proved that a finite group $G$ is supersoluble with elementary abelian Sylow subgroups if and only if every subgroup of $G$ is complemented in $G$‎. ‎He called such groups complemented‎. ‎A‎. ‎Ballester-Bolinches and X‎.
Izabela Malinowska
doaj   +1 more source

On uniformly fully inert subgroups of abelian groups

open access: yesTopological Algebra and its Applications, 2020
If H is a subgroup of an abelian group G and φ ∈ End(G), H is called φ-inert (and φ is H-inertial) if φ(H) ∩ H has finite index in the image φ(H). The notion of φ-inert subgroup arose and was investigated in a relevant way in the study of the so called ...
Dardano Ulderico   +2 more
doaj   +1 more source

Groups with Finitely Many Isomorphism Classes of Non-Normal Subgroups [PDF]

open access: yesAdvances in Group Theory and Applications, 2020
We study groups in which the non-normal subgroups fall into finitely many isomorphism classes. We prove that a locally generalized radical group with this property is abelian-by-finite and minimax.
Leonid A. Kurdachenko   +2 more
doaj   +1 more source

Planarity of Inclusion Graph of Cyclic Subgroups of Finite Group [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
Let G be a finite group. The inclusion graph of cyclic subgroups of G, Ic(G), is the (undirected) graph with vertices of all cyclic subgroups of G, and two distinct cyclic subgroups ⟨a⟩ and ⟨b⟩, are adjacent if and only if ⟨a⟩ ⊂ ⟨b⟩ or ⟨b⟩ ⊂ ⟨a⟩. In this
Zahra Garibbolooki, Sayyed Heidar Jafari
doaj   +1 more source

On the Classification Problem for Rank 2 Torsion-Free Abelian Groups [PDF]

open access: yes, 2000
We study here some foundational aspects of the classification problem for torsion-free abelian groups of finite rank. These are, up to isomorphism, the subgroups of the additive groups (Q^n, +), for some n = 1, 2, 3,....
Kechris, Alexander S.
core   +2 more sources

n-capability of A-groups [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
Following P. Hall a soluble group whose Sylow subgroups are all abelian is called A-group. The purpose of this article is to give a new and shorter proof for a criterion on the capability of A-groups of order p2q, where p and q are distinct primes ...
Marzieh Chakaneh   +2 more
doaj   +1 more source

Dimensional groups and fields [PDF]

open access: yes, 2019
We shall define a general notion of dimension, and study groups and rings whose interpretable sets carry such a dimensio. In particular, we deduce chain conditions for groups, definability results for fields and domains, and show that pseudofinite groups
Wagner, Frank Olaf
core   +1 more source

Normality in Uncountable Groups [PDF]

open access: yesAdvances in Group Theory and Applications, 2017
The main purpose of this paper is to describe the structure of uncountable groups of cardinality $\aleph$ in which all subgroups of cardinality $\aleph$ are normal.
Maria De Falco   +3 more
doaj   +1 more source

Some definition of the Artin exponent of finite groups [PDF]

open access: yes, 1996
The Artin exponent induced from cyclic subgroups of finite groups was studied extensively by T.Y. Lam. A Burnside ring theoretic version of Lam's results for $p$-groups was given by the author in an earlier paper.
Nwabueze, K. K.
core   +3 more sources

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