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IA automorphism : ウィキペディア英語版 | IA automorphism In mathematics, in the realm of group theory, an IA automorphism of a group is an automorphism that acts as identity on the abelianization.〔.〕 The abelianization of a group is its quotient by its commutator subgroup. An IA automorphism is thus an automorphism that sends each coset of the commutator subgroup to itself. The IA automorphisms of a group form a normal subgroup of the automorphism group. Every inner automorphism is an IA automorphism. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「IA automorphism」の詳細全文を読む
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