English

Classification of the irreducible ordinary modules for affine vertex operator superalgebras

Representation Theory 2026-05-07 v1 Quantum Algebra

Abstract

Let g\mathfrak{g} be a basic classical Lie superalgebra, k=huh\mathcal{k}=\frac{h^{\vee}}{u}-h^{\vee} a boundary admissible level of g^\widehat{\mathfrak{g}}, where uu is a positive integer and hh^{\vee} is the dual Coxeter number of g\mathfrak{g}. In this paper, we classify the irreducible ordinary modules for the affine vertex operator superalgebra Lg^(k,0)L_{\widehat{\mathfrak{g}}}(\mathcal{k},0) associated to any basic classical Lie superalgebra g\mathfrak{g}. More specifically, if g\mathfrak{g} is a basic classical Lie superalgebra of type I, we prove that Lg^(k,0)L_{\widehat{\mathfrak{g}}}(\mathcal{k},0) has exactly uu inequivalent irreducible ordinary modules. If g\mathfrak{g} is a finite dimensional simple Lie algebra or a basic classical Lie superalgebra of type II, we prove that Lg^(k,0)L_{\widehat{\mathfrak{g}}}(\mathcal{k},0) itself is the only irreducible ordinary Lg^(k,0)L_{\widehat{\mathfrak{g}}}(\mathcal{k},0)-module.

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Cite

@article{arxiv.2605.04668,
  title  = {Classification of the irreducible ordinary modules for affine vertex operator superalgebras},
  author = {Haimin Li and Qing Wang},
  journal= {arXiv preprint arXiv:2605.04668},
  year   = {2026}
}

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20 pages