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AFFINE LIE ALGEBRA REPRESENTATIONS INDUCED FROM WHITTAKER MODULES

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Author(s):
Cardoso, Maria Clara ; Futorny, Vyacheslav
Total Authors: 2
Document type: Journal article
Source: Proceedings of the American Mathematical Society; v. 151, n. 3, p. 13-pg., 2023-03-01.
Abstract

. We use induction from parabolic subalgebras with infinite-dimensional Levi factor to construct new families of irreducible representations for arbitrary affine Kac-Moody algebras. Our first construction defines a functor from the category of Whittaker modules over the Levi factor of a parabolic subalgebra to the category of modules over the affine Lie algebra. The second functor sends tensor products of a module over the affine part of the Levi factor (in particular any weight module) and of a Whittaker module over the complement Heisenberg subalgebra to the affine Lie algebra modules. Both functors preserve irreducibility when the central charge is nonzero. (AU)

FAPESP's process: 19/24494-9 - Representations of W-algebras
Grantee:Maria Clara Cardoso
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 18/23690-6 - Structures, representations, and applications of algebraic systems
Grantee:Ivan Chestakov
Support Opportunities: Research Projects - Thematic Grants