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Advances in Lie Theory, Representation Theory, and Combinatorics: Inspired by the work of Georgia M. Benkart: "Representations induced from large subalgebras of a Lie algebra of differential operators"

Presenter
May 2, 2024
Keywords:
  • key words Lie algebras
  • Representation theory
  • combinatorics
MSC:
  • 05-XX - Combinatorics {For finite fields
  • see 11Txx}
  • 16-XX - Associative rings and algebras {For the commutative case
  • see 13-XX}
  • 17-XX - Nonassociative rings and algebras
  • 20-XX - Group theory and generalizations
Abstract
We will consider representations of the Lie algebra of differential operators of order at most one on the algebra of complex Laurent polynomials. This Lie algebra contains a natural family of large subalgebras that arise from certain pairs of Laurent polynomials. We will examine representations induced from these subalgebras, and we will see that many are in fact irreducible representations. Many of the key ideas follow from some general results concerning tensor products as well as from the fact that these subalgebras have finite codimension.