关于L-内射模和L-投射模

On Linjective Modules and Lprojective Modules

给出Ｌ－内射模和Ｌ－投射模的判定定理，用Ｌ－内射性和Ｌ－投射性刻划Ｌ－Ｎｏｅｔｈ环和Ｌ－遗传模．

Gives criterion theorems of Linjective modules and Lprojective modules,and uses them to characterize Lnoetherian rings and Lhereditary modules.