Real Representations of Finite Symplectic Groups over Fields of Characteristic Two

Author:

Vinroot C Ryan1

Affiliation:

1. Department of Mathematics, College of William and Mary, Williamsburg, VA, USA

Abstract

Abstract We prove that when q is a power of 2 every complex irreducible representation of $\textrm{Sp}\big (2n, \mathbb{F}_{q}\big )$ may be defined over the real numbers, that is, all Frobenius–Schur indicators are 1. We also obtain a generating function for the sum of the degrees of the unipotent characters of $\textrm{Sp}\big(2n, \mathbb{F}_{q}\big )$, or of $\textrm{SO}\big(2n+1,\mathbb{F}_{q}\big )$, for any prime power q.

Funder

Simons Foundation

Publisher

Oxford University Press (OUP)

Subject

General Mathematics

Reference25 articles.

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3. Representations of reductive groups over finite fields;Deligne;Ann. Math. (2),1976

4. Representations of Finite Groups of Lie Type

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