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请教这题我用的Burnside定理,当n是偶数的时候算出来不对。以n = 4为例。 有(1)四个旋转置换,(2)两个对角线置换和(3)两个对边中点连线的对称置换 |G| = 8; (1) 81 + 3 + 3 + 3 = 90; (2) 2*3*3*3 = 54; (3) 2*3*3 = 18; (1)+(2)+(3) 90 + 54 + 18 = 162.为什么不是8的倍数啊? Followed by: Post your reply here: |
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