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Classification of irreducible modules for Bershadsky–Polyakov algebra at certain levels

27/08/2020 Rafael Mrđen 0

Authors: Dražen Adamović, Ana Kontrec Journal of Algebra and its applications (2020), https://doi.org/10.1142/S0219498821501024 Abstract: We study the representation theory of the Bershadsky-Polyakov algebra . In particular, Zhu algebra of is isomorphic to a certain quotient of the Smith algebra, after changing the Virasoro vector. We classify all modules in the category for the Bershadsky-Polyakov algebra […]

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On Zhu’s algebra and C_2–algebra for symplectic fermion vertex algebra SF(d)^+

27/08/2020 Rafael Mrđen 0

Authors: Dražen Adamović, Ante Čeperić Journal of Algebra, Volume 563, 1 December 2020, Pages 376-403, https://doi.org/10.1016/j.jalgebra.2020.07.019 Abstract: In this paper, we study the family of vertex operator algebras , known as symplectic fermions. This family is of a particular interest because these VOAs are irrational and -cofinite. We determine Zhu’s algebra  and show that the equality of dimensions of  and the -algebra  holds for d≥2 (the […]