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arXiv:1011.2789 [math.RT]AbstractReferencesReviewsResources

On a conjecture of G. Malle and G. Navarro on nilpotent blocks

Jean-Baptiste Gramain

Published 2010-11-11, updated 2011-05-02Version 2

In a recent article, G. Malle and G. Navarro conjectured that the $p$-blocks of a finite group all of whose height 0 characters have the same degree are exactly the nilpotent blocks defined by M. Brou\'e and L. Puig. In this paper, we check that this conjecture holds for spin-blocks of the covering group $2.\A_n$ of the alternating group $\A_n$, thereby solving a case excluded from the study of quasi-simple groups by Malle and Navarro.

Categories: math.RT
Subjects: 20C30, 20C15, 20C20
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