摘要
研究一个集的若干个非一一变换作成群的判别条件及其存在性
In this paper, the criterion condition is given that some non one to one transformations of set constitute a group and the existence of non one to one transformation of set is proved.
关键词
变换群
非一一变换
群
诱导变换
集
判别条件
transformation group non one to one transformation group induced transformation
