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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Giovanni Frattini ： ウィキペディア英語版 Giovanni Frattini Giovanni Frattini (8 January 1852 – 21 July 1925) was an Italian mathematician, noted for his contributions to group theory. He entered the University of Rome in 1869, where he studied mathematics with Giuseppe Battaglini, Eugenio Beltrami, and Luigi Cremona, obtaining his Ph.D. in 1875. In 1885 he published a paper where he defined a certain subgroup of a finite group. This subgroup, now known as the Frattini subgroup, is the subgroup Φ(''G'') generated by all the non-generators of the group ''G''. He showed that Φ(''G'') is nilpotent and, in so doing, developed a method of proof known today as Frattini's argument.〔G. Frattini, ''Intorno alla generazione dei gruppi di operazioni'', Rom. Acc. L. Rend. (4) I. 281–285, 455–457, 1885.〕 ==See also== *Fitting subgroup *Frattini subgroup 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「Giovanni Frattini」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.