G－交换本原字及其代数性质

G-Commutative Primitive Words and Their Algebraic Properties

引进Ｇ－交换本原字的概念，这里Ｇ是一个置换群，甚至是全对称群Ｓｎ的一个子集合，给出判断并且构作一个本原字是Ｇ－交换本原字的方法．

The concept of G-commutative primitive word is introduced, in which G is a permutation group or even a subset of symmetric group Sn. And the methods that judge and construct G-commutative word are presented.