[引用][C] On quasi-projective modules via relative projectivity
KR Fuller, DA Hill - Archiv der Mathematik, 1970 - Springer
Recently,]~. DE ROBERT has considered the dual concepts of relative projectivity and
relative injectivity that extend the notions of quasi-projective and quasi-injective modules …
relative injectivity that extend the notions of quasi-projective and quasi-injective modules …