遗传挠理论的余投射模和余内射模

张力宏, 杜奕秋

Co-projective Modules and Coinjective Modules Relatedto the Hereditary Torsion Theory

ZHANG Li-Hong, DU Yi-Qiu

吉林大学学报(理学版) . 2011, (03): 412 -418 .