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Su di un problema combinatorio in teoria dei gruppi

Mario Curzio, Patrizia Longobardi, Mercede Maj (1983)

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni

Let G be a group and n an integer 2 . We say that G has the n -permutation property ( G P n ) if, for any elements x 1 , x 2 , , x n in G , there exists some permutation σ of { 1 , 2 , , n } , σ i d . such that x 1 , x 2 , , x n = x σ ( 1 ) , x σ ( 2 ) , , x σ ( n ) . We prouve that every group G P n is an FC-nilpotent group of class n - 1 , and that a finitely generated group has the n -permutation property (for some n ) if, and only if, it is abelian by finite. We prouve also that a group G P 3 if, and only if, its derived subgroup has order at most 2.

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