ON A CHAIN OF BUTLER GROUPS  

作　　者：李武炎 张员荣 

出　　处：《Acta Mathematica Scientia》1998年第3期303-309,共7页数学物理学报（B辑英文版）

摘　　要：This paper is devoted to the examination of a strictly increasing chain of subclasses of Butler groups.This paper is devoted to the examination of a strictly increasing chain of subclasses of Butler groups.

关 键 词：Butler groups regulating subgroups 

分 类 号：O152[理学—数学]