Modular irreducibility of cuspidal unipotent characters
نویسندگان
چکیده
منابع مشابه
On the Schur indices of cuspidal unipotent characters
In previous work of Gow, Ohmori, Lusztig and the author, the Schur indices of all unipotent characters of finite groups of Lie type have been explicitly determined except for six cases in groups of type F4, E7 and E8. In this paper, we show that the Schur indices of all cuspidal unipotent characters for type F4 and E8 are 1, assuming that the group is defined over a field of “good” characterist...
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ژورنال
عنوان ژورنال: Inventiones mathematicae
سال: 2017
ISSN: 0020-9910,1432-1297
DOI: 10.1007/s00222-017-0753-1