commutative Lie group交换李群
commutative algebraic group[数] 交换代数群
finite commutative p group有限交换p群
commutative unipotent algebraic group交换幂么代数群;[数] 交换幂幺代数群
commutative semi-group交换半群
compact connected commutative group紧的连通的可交换群
a commutative group是交换群
commutative element of group群的可换元素