有多少个不同的4阶非同构阿贝尔群 (A) 2. (B) 3. (C) 4. (D) 5. 答复: (A) 说明:
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2 can be written as 2 power 2. Number of partitioning of 2 = no. of non isomorphic abelian groups 2 can be partitioned as {(2),(1,1)}
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有多少个不同的4阶非同构阿贝尔群 (A) 2. (B) 3. (C) 4. (D) 5. 答复: (A) 说明:
2 can be written as 2 power 2. Number of partitioning of 2 = no. of non isomorphic abelian groups 2 can be partitioned as {(2),(1,1)}