Original Research

Semi-projective modules

D. Döman
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie | Vol 3, No 2 | a1075 | DOI: https://doi.org/10.4102/satnt.v3i2.1075 | © 1984 D. Döman | This work is licensed under CC Attribution 4.0
Submitted: 20 March 1984 | Published: 20 March 1984

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Abstract

It is well-known that the submodules of a projective module need not be projective. In this article we investigate a certain projectivity which is preserved under the taking of submodules. This property is used to characterize hereditary rings and QF rings.

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