1)group series,群列2)normal series,正规群列3)Composition Series of a Group,合成群列4)Quotient Series of a Group,商群列5)Chain of Subgroup,子群列6)principal series,主群列
用法例句
In the frist part of the article, we give the classification of the supersolvable groups with unique principal series and the classification of the solvable groups with unique composition series.
