Listar por tema "Nilpotency"
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Nilpotency of normal subgroups having two G-class sizes
American Mathematical Society (2010-12-22)Let G be a finite group. If N is a normal subgroup which has exactly two G-conjugacy class sizes, then N is nilpotent. In particular, we show that N is abelian or is the product of a p-group P by a central subgroup of G. ...
