|
Algebra and Discrete Mathematics, 2018, том 26, выпуск 2, страницы 170–189
(Mi adm679)
|
|
|
|
RESEARCH ARTICLE
Modules in which every surjective endomorphism has a $\delta$-small kernel
Shahabaddin Ebrahimi Atani, Mehdi Khoramdel, Saboura Dolati Pishhesari Department of Mathematics, University of Guilan, P.O.Box 1914, Rasht, Iran
Аннотация:
In this paper, we introduce the notion of $\delta$-Hopfian modules. We give some properties of these modules and provide a characterization of semisimple rings in terms of $\delta$-Hopfian modules by proving that a ring $R$ is semisimple if and only if every $R$-module is $\delta$-Hopfian. Also, we show that for a ring $R$, $\delta(R)=J(R)$ if and only if for all $R$-modules, the conditions $\delta$-Hopfian and generalized Hopfian are equivalent. Moreover, we prove that $\delta$-Hopfian property is a Morita invariant. Further, the $\delta$-Hopficity of modules over truncated polynomial and triangular matrix rings are considered.
Ключевые слова:
Dedekind finite modules, Hopfian modules, generalized Hopfian modules, $\delta$-Hopfian modules.
Поступила в редакцию: 15.12.2016 Исправленный вариант: 18.10.2018
Образец цитирования:
Shahabaddin Ebrahimi Atani, Mehdi Khoramdel, Saboura Dolati Pishhesari, “Modules in which every surjective endomorphism has a $\delta$-small kernel”, Algebra Discrete Math., 26:2 (2018), 170–189
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/adm679 https://www.mathnet.ru/rus/adm/v26/i2/p170
|
Статистика просмотров: |
Страница аннотации: | 170 | PDF полного текста: | 84 | Список литературы: | 31 |
|