ALMOST-PERFECT MODULES
Glasgow mathematical journal, Tome 52 (2010) no. A, pp. 33-40

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We call a module Malmost perfect if every M-generated flat module is M-projective. Any perfect module is almost perfect. We characterize almost-perfect modules and investigate some of their properties. It is proved that a ring R is a left almost-perfect ring if and only if every finitely generated left R-module is almost perfect. R is left perfect if and only if every (projective) left R-module is almost perfect.
DOI : 10.1017/S0017089510000297
Mots-clés : Primary 16A51, secondary 16A50, 16D40
AYDOĞDU, PINAR; ÖZCAN, A. ÇIĞDEM. ALMOST-PERFECT MODULES. Glasgow mathematical journal, Tome 52 (2010) no. A, pp. 33-40. doi: 10.1017/S0017089510000297
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