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Article Dans Une Revue Advances in Mathematics Année : 2019

Descent equalities and the inductive McKay condition for types B and E

Résumé

We establish the inductive McKay condition introduced by Isaacs-Malle-Navarro [IMN07] for finite simple groups of Lie types B l (l ≥ 2), E 6 , 2 E 6 and E 7 , thus leaving open only the types D and 2 D. We bring to the methods previously used by the authors for type C [CS17b] some descent arguments using Shintani's norm map. This provides for types different from A, D, 2 D a uniform proof of the so-called global requirement of the criterion given by the second author in [S12, 2.12]. The local requirements from that criterion are verified through a detailed study of the normalizers of relevant Levi subgroups and their characters.
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Dates et versions

hal-02340057 , version 1 (30-10-2019)

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Marc Cabanes, Britta Späth. Descent equalities and the inductive McKay condition for types B and E. Advances in Mathematics, 2019, 356, pp.106820. ⟨10.1016/j.aim.2019.106820⟩. ⟨hal-02340057⟩
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