Results 71 to 80 of about 1,402,642 (202)

Some designs and codes from L_2(q) [PDF]

open access: yesTransactions on Combinatorics, 2014
For $q \in \{7,8,9,11,13,16\}$, we consider the primitive actions of $L_2(q)$ and use Key-Moori Method 1 as described in [Codes, designs and graphs from the Janko groups {$J_1$} and {$J_2$}, {\em J. Combin. Math. Combin.
Jamshid Moori   +1 more
doaj  

Some results on compact convergence semigroups defined by filters

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
In this paper the concept of convergence defined by filters is used and applied in the study of semigroups. Special emphasis is placed on compact convergence semigroups and their properties.
Phoebe Ho, Paul Plummer, Shing So
doaj   +1 more source

On θ-pairs for maximal subgroups

open access: yesJournal of Pure and Applied Algebra, 2000
A pair of subgroups \((C,D)\) of a finite group \(G\) is said to be a \(\theta^*\)-pair for a maximal subgroup \(M\) of \(G\) if it satisfies the following properties: (a) \(D\) is a proper subgroup of \(C\) and \(D\) is normal in \(G\). (b) \(D\) is contained in \(M\) and \(M\) does not contain any conjugate of \(C\) in \(G\).
Shirong, Li, Yaoqing, Zhao
openaire   +1 more source

Characters and Sylow 2-subgroups of maximal class revisited

open access: yesJournal of Pure and Applied Algebra, 2018
We give two ways to distinguish from the character table of a finite group G if a Sylow 2-subgroup of G has maximal class. We also characterize finite groups with Sylow 3-subgroups of order 3 in terms of their principal 3-block.
G. Navarro, Benjamin Sambale, P. Tiep
semanticscholar   +1 more source

Independence and maximal subgroups

open access: yesIllinois Journal of Mathematics, 1996
\(G\) denotes a finite group and \(M(G)\) the set of all maximal subgroups of \(G\). A simplicial complex \((M,{\mathcal T})\) is a finite set \(M\) and a set \(\mathcal T\) of subsets of \(M\) such that: (1) If \(m\in M\), then \(\{m\}\in{\mathcal T}\). (2) If \(A\in{\mathcal T}\) and \(B\subset A\), then \(B\in{\mathcal T}\).
openaire   +3 more sources

Maximal subgroups and formations

open access: yesJournal of Pure and Applied Algebra, 1989
For a subgroup-closed saturated formation \({\mathcal F}\) containing all nilpotent groups, the author studies various properties of the following subgroups of a finite group G, and of some related constructions: \(L_{{\mathcal F}}(G)=\cap ...
openaire   +2 more sources

Green’s relations for 2 × 2 matrices over linearly ordered abelian groups [PDF]

open access: yesProceedings of the Estonian Academy of Sciences
We consider semigroups of 2 × 2 matrices over linearly ordered abelian groups with respect to multiplication, which is defined similarly to tropical algebra. We study Green’s relations on such semigroups.
Marilyn Kutti, Valdis Laan
doaj   +1 more source

Theoretical Researches about u-Maximal Subgroups and Its Applications in Charactering IntuG

open access: yesJournal of Chemistry, 2019
Let G be a finite group and u be the class of all finite supersoluble groups. A supersoluble subgroup U of G is called u-maximal in G if for any supersoluble subgroup V of G containing U, V=U.
Li Zhang, Zheng-Qun Cai
doaj   +1 more source

Maximal subgroups of infinite symmetric groups.

open access: yesNotre Dame Journal of Formal Logic, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Baumgartner, James E.   +2 more
openaire   +3 more sources

Maximal subgroups of finite classical groups and their geometry

open access: yesLe Matematiche, 2004
We survey some recent results on maximal subgroups of finite classical groups.
Antonio Cossidente
doaj  

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