2019
DOI: 10.1016/j.aim.2019.106820
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Descent equalities and the inductive McKay condition for types B and E

Abstract: 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… Show more

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Cited by 18 publications
(17 citation statements)
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“…In the investigation of the inductive condition of McKay conjecture (cf. [36, §10]), Cabanes and Späth proved in a series of papers [15][16][17]60] for ordinary characters that: in every G-orbit of Irr(G) there exists a character χ ∈ Irr(G) such that ( GA) χ = G χ A χ and χ extends to GA χ . Thus Assumption 5.3 holds if G has a ( GA)-stable unitriangular basic set for IBr(G, e G s ).…”
Section: Then Any Block B In S Is Baw-goodmentioning
confidence: 99%
“…In the investigation of the inductive condition of McKay conjecture (cf. [36, §10]), Cabanes and Späth proved in a series of papers [15][16][17]60] for ordinary characters that: in every G-orbit of Irr(G) there exists a character χ ∈ Irr(G) such that ( GA) χ = G χ A χ and χ extends to GA χ . Thus Assumption 5.3 holds if G has a ( GA)-stable unitriangular basic set for IBr(G, e G s ).…”
Section: Then Any Block B In S Is Baw-goodmentioning
confidence: 99%
“…The aim of the present paper and its sequel [S21a] is to prove A(∞) for G of type D and 2 D. In the present paper G will be indeed some D l,sc (q) (l ≥ 4, q a power of an odd prime); the case of twisted types 2 D will also be deduced in [S21a]. Condition A(∞) in the case of D l,sc (2 m ) and 2 D l,sc (2 m ), essentially a corollary of [CS19,3.9], is also established in [S21a].…”
Section: Introductionmentioning
confidence: 92%
“…When G is the universal covering group of a finite simple group of Lie type, this is Question 5.9 in [GM]. Previous research on the subject has left open only the case of groups of type D, see [CS19,2.5]. The present paper is the first part of a solution to that problem.…”
Section: Introductionmentioning
confidence: 98%
See 1 more Smart Citation
“…Therefore, F 1 | G F generates B and then the claim holds. The required bijection Ξ B is indeed constructed in the proof of [CS19,Thm. 3.7].…”
Section: Simple Groups Of Lie Type In Non-defining Characteristicmentioning
confidence: 99%