Results 1 to 10 of about 1,371,090 (265)

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

Two Generator p-Groups of Class Two of Central Type [PDF]

open access: yesAdvances in Group Theory and Applications, 2023
We investigate the 2-generator p-groups of class two of central type.
Adriana Nenciu
doaj   +1 more source

A Class of Frobenius Groups [PDF]

open access: yesCanadian Journal of Mathematics, 1959
If a group contains two subgroups A and B such that every element of the group is either in A or can be represented uniquely in the form aba', a, a’ in A, b ≠ 1 in B, we shall call the group an independent ABA-group. In this paper we shall investigate the structure of independent ABA -groups of finite order.A simple example of such a group is the group
Gorenstein, Daniel, Herstein, I. N.
openaire   +3 more sources

ON A CLASS OF SUPERSOLUBLE GROUPS [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2014
AbstractA subgroup $\def \xmlpi #1{}\def \mathsfbi #1{\boldsymbol {\mathsf {#1}}}\let \le =\leqslant \let \leq =\leqslant \let \ge =\geqslant \let \geq =\geqslant \def \Pr {\mathit {Pr}}\def \Fr {\mathit {Fr}}\def \Rey {\mathit {Re}}H$ of a finite group $G$ is said to be S-semipermutable in $G$ if $H$ permutes with every Sylow $q$-subgroup of $G$ for ...
Ballester-Bolinches, Adolfo   +3 more
openaire   +3 more sources

A Countable-Type Theorem for Uncountable Groups [PDF]

open access: yesAdvances in Group Theory and Applications, 2017
The aim of this paper is to develop a general construction method of finite series of a group G based on the existence of suitable finite series in the countable subgroups of G.
Maria Ferrara, Marco Trombetti
doaj   +1 more source

Rational Class Sizes and Their Implications for the Structure of Finite Groups [PDF]

open access: yesAdvances in Group Theory and Applications, 2022
This paper considers the implications of rational class sizes for the structure of finite groups. Ever since Itô introduced the notion of a conjugate type vector in 1953, the problem of unraveling the connections between the set of conjugacy class sizes ...
Hossein Shahrtash
doaj   +1 more source

Class teachers and inclusion of marginalized groups of pupils in the class [PDF]

open access: yesRevija za Elementarno Izobraževanje, 2018
In the first part of the article, we present the characteristics of marginalized groups of pupils and the role of the class teacher in integrating them into the class.
Anja Smole, Tina Vršnik Perše
doaj   +1 more source

Fukaya categories of surfaces, spherical objects and mapping class groups

open access: yesForum of Mathematics, Sigma, 2021
We prove that every spherical object in the derived Fukaya category of a closed surface of genus at least $2$ whose Chern character represents a nonzero Hochschild homology class is quasi-isomorphic to a simple closed curve equipped with a rank $1 ...
Denis Auroux, Ivan Smith
doaj   +1 more source

Finding a class of 2-groups; pp. 370–374 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2010
Let n ³ ≥3 be an integer and Cm denote a cyclic group of order m. All groups which can be presented as a semidirect products (C2n x C2n) ⋋C4 are described. These groups are given by generators and defining relations.
Tatjana Tamberg
doaj   +1 more source

Uniform system for grouping of steels in welding manufacture by ISO/TR 15608

open access: yesЛитьë и металлургия, 2020
Recommendations to assign steel grades most commonly used in industry and energy of the Republic of Belarus to a specific group and subgroup of the international standard ISO/TR 15608 are presented.
T. I. Bendik   +3 more
doaj   +1 more source

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