Geodesic
R -Projective Modules over a Semiperfect Ring
Canadian mathematical bulletin, Tome 24 (1981) no. 3, pp. 365-367

Voir la notice de l'article provenant de la source Cambridge University Press

The aim of this paper is to prove the following theorem:Let R be a semiperfect ring. Let Q be a left R -module satisfying (a) Q is R-projective and (b) J(Q) is small in Q. Then Q is projective. 
Ketkar, R. D.; Vanaja, N. R -Projective Modules over a Semiperfect Ring. Canadian mathematical bulletin, Tome 24 (1981) no. 3, pp. 365-367. doi: 10.4153/CMB-1981-055-x
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     title = {R {-Projective} {Modules} over a {Semiperfect} {Ring}},
     journal = {Canadian mathematical bulletin},
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     year = {1981},
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     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1981-055-x/}
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