Extremal unipotent representations for the finite Howe correspondence

We study the Howe correspondence for unipotent representations of irreducible dual pairs (G, G') = (U-m (F-q), U-n(F-q)) and (G, G') = (Sp(2m)(F-q), O-2n(epsilon) (F-q)), where F-q denotes the finite field with q elements (q odd) and epsilon = +/- 1. We show how to extract extrema] (i.e. m...

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Detalles Bibliográficos
Autor: Chavez, Jesua Epequin
Tipo de recurso: artículo
Fecha de publicación:2019
País:Perú
Institución:Consejo Nacional de Ciencia Tecnología e Innovación
Repositorio:CONCYTEC-Institucional
Idioma:inglés
OAI Identifier:oai:repositorio.concytec.gob.pe:20.500.12390/2852
Acceso en línea:https://hdl.handle.net/20.500.12390/2852
https://doi.org/10.1016/j.jalgebra.2019.05.046
Access Level:acceso abierto
Palabra clave:Weyl groups
Cuspidal unipotent representations
Howe correspondence
Representation theory of finite groups
http://purl.org/pe-repo/ocde/ford#1.01.01
Descripción
Sumario:We study the Howe correspondence for unipotent representations of irreducible dual pairs (G, G') = (U-m (F-q), U-n(F-q)) and (G, G') = (Sp(2m)(F-q), O-2n(epsilon) (F-q)), where F-q denotes the finite field with q elements (q odd) and epsilon = +/- 1. We show how to extract extrema] (i.e. minimal and maximal) irreducible subrepresentations from the image Theta(pi') of a unipotent representation pi' of G'. (C) 2019 Elsevier Inc. All rights reserved.