Groups from Class 2 Algebras and the Weil Character

We investigate the behaviour of the Weil character of the symplectic group on restriction to subgroups arising from commutative nilpotent algebras of class 2. We give explicit descriptions of the decomposition of the Weil character when restricted to the unipotent radical of the stabilizer of a maxi...

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Main Authors: Christakis A. Pallikaros, Harold N. Ward
Format: Article
Language:English
Published: Aracne 2017-06-01
Series:Advances in Group Theory and Applications
Subjects:
Online Access:http://www.advgrouptheory.com/journal/Volumes/3/C.A.%20Pallikaros,%20H.N.%20Ward%20-%20Groups%20from%20class%202%20algebras%20and%20the%20Weil%20character.pdf
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author Christakis A. Pallikaros
Harold N. Ward
author_facet Christakis A. Pallikaros
Harold N. Ward
author_sort Christakis A. Pallikaros
collection DOAJ
description We investigate the behaviour of the Weil character of the symplectic group on restriction to subgroups arising from commutative nilpotent algebras of class 2. We give explicit descriptions of the decomposition of the Weil character when restricted to the unipotent radical of the stabilizer of a maximal totally isotropic subspace and to its centralizer. Moreover, we show how these decompositions can be used to obtain alternative proofs for certain results concerning quadratic forms or Gauss sums.
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spelling doaj.art-abf4e5f2f5474da5a6a92b087763f1322022-12-21T18:22:09ZengAracneAdvances in Group Theory and Applications2499-12872499-12872017-06-0137596Groups from Class 2 Algebras and the Weil CharacterChristakis A. Pallikaros0Harold N. Ward1University of CyprusUniversity of VirginiaWe investigate the behaviour of the Weil character of the symplectic group on restriction to subgroups arising from commutative nilpotent algebras of class 2. We give explicit descriptions of the decomposition of the Weil character when restricted to the unipotent radical of the stabilizer of a maximal totally isotropic subspace and to its centralizer. Moreover, we show how these decompositions can be used to obtain alternative proofs for certain results concerning quadratic forms or Gauss sums.http://www.advgrouptheory.com/journal/Volumes/3/C.A.%20Pallikaros,%20H.N.%20Ward%20-%20Groups%20from%20class%202%20algebras%20and%20the%20Weil%20character.pdfWeil representationssymplectic groupquadratic form
spellingShingle Christakis A. Pallikaros
Harold N. Ward
Groups from Class 2 Algebras and the Weil Character
Advances in Group Theory and Applications
Weil representations
symplectic group
quadratic form
title Groups from Class 2 Algebras and the Weil Character
title_full Groups from Class 2 Algebras and the Weil Character
title_fullStr Groups from Class 2 Algebras and the Weil Character
title_full_unstemmed Groups from Class 2 Algebras and the Weil Character
title_short Groups from Class 2 Algebras and the Weil Character
title_sort groups from class 2 algebras and the weil character
topic Weil representations
symplectic group
quadratic form
url http://www.advgrouptheory.com/journal/Volumes/3/C.A.%20Pallikaros,%20H.N.%20Ward%20-%20Groups%20from%20class%202%20algebras%20and%20the%20Weil%20character.pdf
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