Harish-Chandra cuspidal pairs
نویسندگان
چکیده
The irreducible characters of a finite reductive group are partitioned into Harish-Chandra series that labelled by cuspidal pairs. In this note, we describe how one can algorithmically calculate those pairs using results Lusztig.
منابع مشابه
Harish-chandra Modules for Quantum Symmetric Pairs
Let U denote the quantized enveloping algebra associated to a semisimple Lie algebra. This paper studies Harish-Chandra modules for the recently constructed quantum symmetric pairs U ,B in the maximally split case. Finite-dimensional U -modules are shown to be Harish-Chandra as well as the B-unitary socle of an arbitrary module. A classification of finite-dimensional spherical modules analogous...
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The irreducible complex representations of nite groups of Lie type are divided into series by means of the Harish-Chandra philosophy, whose starting point is the concept of cuspidal characters (see e.g..Sr]). The classiication of the irreducible characters of such a group G can be done in two steps: First nd all cuspidal irreducible characters of Levi subgroups L of G. Then apply Harish-Chandra...
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I began to study representation theory while I was a graduate student at the University of Washington in the early seventies. At that time learning the theory of unitary representations of semisimple Lie groups primarily meant learning Harish-Chandra's work, and it was not an easy task. By that time Harish-Chandra had published over fifty papers, more than a thousand pages, on this subject. His...
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ژورنال
عنوان ژورنال: Indagationes Mathematicae
سال: 2021
ISSN: ['0019-3577', '1872-6100']
DOI: https://doi.org/10.1016/j.indag.2021.09.006