Results 21 to 30 of about 51,537 (200)

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

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

Efficient quantum algorithms for some instances of the non-Abelian hidden subgroup problem [PDF]

open access: yes, 2001
In this paper we show that certain special cases of the hidden subgroup problem can be solved in polynomial time by a quantum algorithm. These special cases involve finding hidden normal subgroups of solvable groups and permutation groups, finding hidden
Ivanyos, Gabor   +2 more
core   +2 more sources

G-Groups and Biuniform Abelian Normal Subgroups [PDF]

open access: yesAdvances in Group Theory and Applications, 2016
We prove a weak form of the Krull-Schmidt Theorem concerning the behavior of direct-product decompositions of $G$-groups, biuniform abelian $G$-groups, $G$-semidirect products and the $G$-set $Hom(H,A)$. Here $G$ and $A$ are groups and $H$ is a $G$-group.
María José Arroyo Paniagua   +1 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

On the number of subgroups of a given exponent in a finite abelian group [PDF]

open access: yes, 2017
This paper deals with the number of subgroups of a given exponent in a finite abelian group. Explicit formulas are obtained in the case of rank two and rank three abelian groups.
Tóth, László, Tărnăuceanu, Marius
core   +2 more sources

Maximal order Abelian Subgroups of Symmetric Groups [PDF]

open access: yesBulletin of the London Mathematical Society, 1989
In answer to a problem arising in the study of the statistical mechanics of systems of N quantum spins, the following classification of maximal order abelian subgroups G of \(S_ N\) is obtained. G is isomorphic to a direct product of k copies of \({\mathbb{Z}}_ 3\) if \(N=3k\). G is isomorphic to a direct product of \({\mathbb{Z}}_ 2\) with k copies of
Burns, J. M., Goldsmith, Brendan
openaire   +4 more sources

Commutators in groups of piecewise projective homeomorphisms [PDF]

open access: yes, 2018
In 2012 Monod introduced examples of groups of piecewise projective homeomorphisms which are not amenable and which do not contain free subgroups, and later Lodha and Moore introduced examples of finitely presented groups with the same property.
Burillo, José   +2 more
core   +3 more sources

Abelian subgroups of pro-$p$ Galois groups [PDF]

open access: yesTransactions of the American Mathematical Society, 1998
Summary: It is proved that non-trivial normal abelian subgroups of the Galois group of the maximal Galois \(p\)-extension of a field \(F\) (where \(p\) is an odd prime) arise from \(p\)-Henselian valuations with non-\(p\)-divisible value group, provided \(\# (\dot{F}/\dot{F}^{p})\geq p^{2}\) and \(F\) contains a primitive \(p\)-th root of unity.
Engler, A, Koenigsmann, J
openaire   +1 more source

Abelian subgroups of two‐dimensional Artin groups [PDF]

open access: yesBulletin of the London Mathematical Society, 2021
This article was originally Section 6 from the article arXiv:1906.03154, which is being split into ...
Martin, Alexandre, Przytycki, Piotr
openaire   +3 more sources

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