Results 11 to 20 of about 386 (69)

James' Submodule Theorem and the Steinberg Module [PDF]

open access: yes, 2017
James' submodule theorem is a fundamental result in the representation theory of the symmetric groups and the finite general linear groups. In this note we consider a version of that theorem for a general finite group with a split $BN$-pair.
Geck, Meinolf
core   +3 more sources

On the average values of the irreducible characters of finite groups of Lie type on geometric unipotent classes

open access: yesDocumenta Mathematica, 1996
In 1980, Lusztig posed the problem of showing the existence of a unipotent support for the irreducible characters of a nite reductive group G(F q ). This is de ned in terms of certain average values of the irreducible characters on unipotent classes. The
M. Geck
semanticscholar   +1 more source

On the classification of simple modules for cyclotomic Hecke algebras of type G(m,1,n) and Kleshchev multipartitions [PDF]

open access: yes, 2000
We give a proof of a conjecture that Kleshchev multipartitions are those partitions which parametrize non-zero simple modules obtained as factor modules of Specht modules by their own radicals.Comment: 11 pages, LaTeX, the last theorem and related ...
Ariki, Susumu
core   +3 more sources

Lifting representations of finite reductive groups: a character relation [PDF]

open access: yes, 2015
Given a connected reductive group $\tilde{G}$ over a finite field $k$, and a semisimple $k$-automorphism $\varepsilon$ of $\tilde{G}$ of finite order, let $G$ denote the connected part of the group of $\varepsilon$-fixed points.
Digne   +9 more
core   +1 more source

A REFINED WARING PROBLEM FOR FINITE SIMPLE GROUPS

open access: yesForum of Mathematics, Sigma, 2015
Let $w_{1}$ and $w_{2}$ be nontrivial words in free groups $F_{n_{1}}$ and $F_{n_{2}}$, respectively. We prove that, for all sufficiently large finite nonabelian simple groups $G$, there exist subsets $C_{1}\subseteq w_{1}(G)$ and $C_{2}\subseteq w_{2}(G)
MICHAEL LARSEN, PHAM HUU TIEP
doaj   +1 more source

THE ${\it\alpha}$ -INVARIANT AND THOMPSON’S CONJECTURE

open access: yesForum of Mathematics, Pi, 2016
In 1981, Thompson proved that, if $n\geqslant 1$ is any integer and $G$
PHAM HUU TIEP
doaj   +1 more source

A progenerator for representations of SL(n,q) in transverse characteristic

open access: yes, 2011
Let G=GL(n,q), SL(n,q) or PGL(n,q) where q is a power of some prime number p, let U denote a Sylow p-subgroup of G and let R be a commutative ring in which p is invertible.
Bonnafé, Cédric
core   +3 more sources

A local-global principle for unipotent characters

open access: yesForum of Mathematics, Sigma
We obtain an adaptation of Dade’s Conjecture and Späth’s Character Triple Conjecture to unipotent characters of simple, simply connected finite reductive groups of type $\mathbf {A}$ , $\mathbf {B}$ and $\mathbf {C}$ .
Damiano Rossi
doaj   +1 more source

On projective modules for Frobenius kernels and finite Chevalley groups

open access: yes, 2013
Let $G$ be a simply-connected semisimple algebraic group scheme over an algebraically closed field of characteristic $p > 0$. Let $r \geq 1$ and set $q = p^r$. We show that if a rational $G$-module $M$ is projective over the $r$-th Frobenius kernel $G_r$
Drupieski, Christopher M.
core   +1 more source

Principal series for general linear groups over finite commutative rings

open access: yes, 2017
We construct, for any finite commutative ring $R$, a family of representations of the general linear group $\mathrm{GL}_n(R)$ whose intertwining properties mirror those of the principal series for $\mathrm{GL}_n$ over a finite field.Comment: 10 ...
Brown, André EX   +11 more
core   +8 more sources

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