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Main Authors: Murphy-Hernandez, Frank, Ríos, Jose
Format: Preprint
Published: 2015
Subjects:
Online Access:https://arxiv.org/abs/1511.01222
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author Murphy-Hernandez, Frank
Ríos, Jose
author_facet Murphy-Hernandez, Frank
Ríos, Jose
contents This paper analyzes new classes of preradicals defined as weak forms of left exact and idempotent preradicals. We introduce prehereditary preradicals to generalize the hereditary property, and essentially idempotent and weakly idempotent preradicals to generalize idempotency. Our motivation is to study the concept of relative injectivity. We show that these new classes facilitate the extension of classical results on injectivity with respect to a hereditary torsion theory to a broader context, requiring weaker assumptions.
format Preprint
id arxiv_https___arxiv_org_abs_1511_01222
institution arXiv
publishDate 2015
record_format arxiv
spellingShingle Classes of Preradicals Induced by Relative Injectivity
Murphy-Hernandez, Frank
Ríos, Jose
Rings and Algebras
This paper analyzes new classes of preradicals defined as weak forms of left exact and idempotent preradicals. We introduce prehereditary preradicals to generalize the hereditary property, and essentially idempotent and weakly idempotent preradicals to generalize idempotency. Our motivation is to study the concept of relative injectivity. We show that these new classes facilitate the extension of classical results on injectivity with respect to a hereditary torsion theory to a broader context, requiring weaker assumptions.
title Classes of Preradicals Induced by Relative Injectivity
topic Rings and Algebras
url https://arxiv.org/abs/1511.01222