Maximal projectivity极大投射性
weak projectivity弱射影
hyperbolic projectivity双曲性直射
elliptic projectivity椭性直射
parabolic projectivity[数] 抛物性射影
opposite projectivity反向射影
periodic projectivity[数] 循环射影
direct projectivity正射影变换;正射影
Relative projectivity相对投射性
Correspond to the concepts of simple injectivity, simple reject and simple trace, some new definitions are given, namely maximal projectivity, maximal reject and maximal trace.
与单内射性、单拒绝和单迹的概念相对应,我们给出了几个新定义:极大投射性、极大拒绝和极大迹。
参考来源 - 形式三角矩阵环及其上的模