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Listar por palabra clave "X-local formation"

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Listar por palabra clave "X-local formation"

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    A question from the Kourovka Notebook on formation products 
    Ballester Bolinches, Adolfo; Calvo Lopez, Clara; Esteban Romero, Ramón (Cambridge University Press, 2003-12)
    [EN] It is shown in this paper that if X is a class of simple groups such that pi(X) = char X, the X-saturated formation H generated by a finite group cannot be expressed as the Gaschütz product F o G of two non-X-saturated ...
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    On X-saturated formations of finite groups 
    Ballester Bolinches, Adolfo; Calvo Lopez, Clara; Esteban Romero, Ramón (Taylor and Francis, 2005-04)
    [EN] In the paper, a Frattini-like subgroup associated with a class X of simple groups is introduced and analysed. The corresponding X-saturated formations are exactly the X-local ones introduced by Förster. Our techniques ...
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    Products of formations of finite groups 
    Ballester Bolinches, Adolfo; Calvo Lopez, Clara; Esteban Romero, Ramón (Elsevier, 2006-05-15)
    [EN] In this paper criteria for a product of formations to be X-local, X a class of simple groups, are obtained. Some classical results on products of saturated formations appear as particular cases.