A construction of some ideals in affine vertex algebras

Details A construction of some ideals in affine vertex algebras A construction of some ideals in affine vertex algebras

2001-03-01

arxiv.org/abs/math/0103006v2

Mathematics

Quantum Algebra

10 pages, Latex, minor changes

Scientific paper

Let $N_{k} (\g)$ be a vertex operator algebra (VOA) associated to the generalized Verma module for affine Lie algebra of type $A_{\ell -1} ^{(1)}$ or $C_{\ell} ^{(1)}$. We construct a family of ideals $J_{m,n} (\g)$ in $N_{k} (\g)$, and a family $V_{m,n} (\g)$ of quotient VOAs. These families include VOAs associated to the integrable representations, and VOAs associated to admissible representations at half-integer levels investigated in q-alg/9502015. We also explicitly identify the Zhu's algebras $A(V_{m,n} (\g))$ and find a connection between these Zhu's algebras and Weyl algebras.

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