On the inheritance of the strongly -extending property
COMMUNICATIONS IN ALGEBRA, vol.45, no.8, pp.3627-3635, 2017 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 45 Issue: 8
- Publication Date: 2017
- Doi Number: 10.1080/00927872.2016.1243245
- Journal Name: COMMUNICATIONS IN ALGEBRA
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.3627-3635
- Hacettepe University Affiliated: Yes
Abstract
In this article, we focus on modules with the property that every projection invariant submodule is essential in a fully invariant direct summand. In contrast to -extending condition, it is shown that the former property is inherited by direct summands and Morita invariant. An application of our results yields that the endomorphism ring of a free module enjoys the property. Moreover, we characterize generalized triangular matrix rings with the aforementioned property and apply to somewhat special cases.