Results 41 to 50 of about 62,478 (178)

Locally finite profinite rings

open access: yes, 2013
We investigate the structure of locally finite profinite rings. We classify (Jacobson-) semisimple locally finite profinite rings as products of complete matrix rings of bounded cardinality over finite fields, and we prove that the Jacobson radical of ...
Dobrowolski, Jan, Krupiński, Krzysztof
core   +1 more source

Rings of invariants of finite groups when the bad primes exist [PDF]

open access: yes, 2019
Let R be a ring (not necessarily with 1) and G be a finite group of automorphisms of R. The set B(R, G) of primes p such that p | |G| and R is not p-torsion free, is called the set of bad primes.
Bavula, V., Futorny, V.
core   +1 more source

Jacobson’s conjecture and skew PBW extensions

open access: yesRevista Integración, 2014
El propósito de este artículo es calcular el radical de Jacobson de las extensiones PBW torcidas sobre dominios. Como consecuencia de este resultado obtenemos una relación directa entre estas extensiones y la conjetura de Jacobson, lo cual nospermite ...
Armando Reyes
doaj   +2 more sources

Group algebras and semigroup algebras defined by permutation relations of fixed length

open access: yes, 2014
Let $H$ be a subgroup of $\text{Sym}_n$, the symmetric group of degree $n$. For a fixed integer $l \geq 2$, the group $G$ presented with generators $x_1, x_2, \ldots ,x_n$ and with relations $x_{i_1}x_{i_2}\cdots x_{i_l} =x_{\sigma (i_1)} x_{\sigma (i_2)}
Cedo, Ferran   +2 more
core   +1 more source

Semiartinian Profinite Algebras have Nilpotent Jacobson Radical [PDF]

open access: yesAlgebras and Representation Theory, 2013
We give a method to study the finiteness of the coradical filtration of a coalgebra; as a consequence, we show that a left semiartinian profinite algebra has nilpotent Jacobson radical and is right semiartinian too. Equivalently, we show that a for a semilocal profinite algebra, T-nilpotence implies nilpotence for the Jacobson radical. This answers two
openaire   +2 more sources

WEAKLY DUO RINGS WITH NIL JACOBSON RADICAL [PDF]

open access: yesJournal of the Korean Mathematical Society, 2005
Throughout \(R\) is an associative ring with identity. The ring \(R\) is called weakly duo if it is right duo and left duo, that is, for each \(a\in R\) there exists a positive integer \(n\) such that \(a^nR\) and \(Ra^n\), respectively, is two-sided.
Kim, Hong Kee, Kim, Nam Kyun, Lee, Yang
openaire   +2 more sources

On the Christensen-Wang bounds for the ghost number of a p-group algebra

open access: yes, 2015
Christensen and Wang give conjectural upper and lower bounds for the ghost number of the group algebra of a p-group. We apply results of Koshitani and Motose on the nilpotency index of the Jacobson radical to prove the upper bound and most cases of the ...
Aksu, Fatma Altunbulak, Green, David J.
core   +2 more sources

Jacobson and Truax Method: evaluation of the clinical effectiveness of a home care program after prostatectomy

open access: yesRevista Latino-Americana de Enfermagem, 2018
Objective: to exemplify the applicability of the Jacobson and Truax Method in a nursing intervention study that analyzed the effectiveness of a home care teaching program after radical prostatectomy.
Luciana Regina Ferreira Pereira da Mata   +5 more
doaj   +1 more source

A weak periodicity condition for rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
A ring is called semi-weakly periodic if each element which is not in the center or the Jacobson radical can be written as the sum of a potent element and a nilpotent element.
Hazar Abu-Khuzam   +2 more
doaj   +1 more source

Rings and groups with commuting powers

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1981
Let n be a fixed positive integer. Let R be a ring with identity which satisfies (i) xnyn=ynxn for all x,y in R, and (ii) for x,y in R, there exists a positive integer k=k(x,y) depending on x and y such that xkyk=ykxkand (n,k)=1.
Hazar Abu-Khuzam, Adil Yaqub
doaj   +1 more source

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