Dissertation/Thesis Abstract

Symmetric tensors and combinatorics for finite-dimensional representations of symplectic Lie algebras
by Maddox, Julia, Ph.D., The University of Oklahoma, 2012, 100; 3507354
Abstract (Summary)

First, we develop a result using multilinear algebra to prove, in an elementary way, a useful identity between representations of [special characters omitted], which involves writing any irreducible representation as a formal combination of tensor products of symmetric powers of the standard representation. Once establishing this identity, we employ a combinatorial argument along with this identity to explicitly determine the weight multiplicities of any irreducible representation of [special characters omitted]. While there is already a closed formula for these multiplicities, our approach is more basic and more easily accessible. After determining these multiplicities, we use them to create a method for computing the L- and ϵ-factors of Sp(4). Finally, we provide an approach to producing any irreducible representation of any rank m symplectic Lie algebra as a formal combination of tensor products of symmetric powers of the standard representation, including a general formula given an appropriately large highest weight.

Indexing (document details)
Advisor: Schmidt, Ralf
Commitee: Cheng, Qi, Lifschitz, Lucy, Magid, Andy, Roche, Alan
School: The University of Oklahoma
Department: Department of Mathematics
School Location: United States -- Oklahoma
Source: DAI-B 73/09(E), Dissertation Abstracts International
Subjects: Mathematics
Keywords: Lie algebras, Symmetric tensors, Symplectic algebras
Publication Number: 3507354
ISBN: 9781267323385
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