设G是由6个元素构成的循环群,a是G的一个生成元,则 G的子群有那些?
人气:269 ℃ 时间:2020-02-03 06:50:31
解答
子群的阶是G的阶的因子,所以子群只能是1阶,2阶,3阶和6阶的.r阶子群的生成元是a^(6/r).
设单位元是e,则1阶子群是={e},2阶子群是={e,a^3},3阶子群是={e,a^2,a^4},6阶子群是G自身.
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