Proceedings of the American Mathematical Society · 1971 · 16 citations · 14 references
Hereditary RingsAbstract AlgebraRepresentation TheoryRing TheoryCommutative AlgebraQuasiprojective ModulesNon-commutative AlgebraSemiperfect RingsUniversal Algebra
Semiperfect rings, semihereditary rings, and hereditary rings, are characterized by properties of quasiprojective modules over their matrix rings.
14
Lectures on Rings and Modules.
Lawrence S. Levy, Joachim Lambek · American Mathematical Monthly · 1969 · 824 citations
Geometry Of Number, Mathematics Education, Modern Algebra +11
L. E. T. Wu, J. P. Jans · Illinois Journal of Mathematics · 1967 · 77 citations · Full text