Quasi-projective modules and the finite exchange property

Gary F. Birkenmeier

International Journal of Mathematics and Mathematical Sciences, 1989, vol. 12, 1-2

Abstract:

We define a module M to be directly refinable if whenever M=A+B, there exists A ¯ ⊆ A and B ¯ ⊆ B such that M= A ¯ ⊕ B ¯ . Theorem. Let M be a quasi-projective module. Then M is directly refinable if and only if M has the finite exchange property.

Date: 1989
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:401985

DOI: 10.1155/S0161171289001018

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