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Characterizations of semiperfect and perfect rings.

Weimin Xue — 1996

Publicacions Matemàtiques

We characterize semiperfect modules, semiperfect rings, and perfect rings using locally projective covers and generalized locally projective covers, where locally projective modules were introduced by Zimmermann-Huisgen and generalized locally projective covers are adapted from Azumaya’s generalized projective covers.

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