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Direct limit completions of vertex tensor categories

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arxiv 2006.09711 v2 pith:3QKKKZ5H submitted 2020-06-17 math.QA math-phmath.CTmath.MPmath.RT

classification math.QAmath-phmath.CTmath.MPmath.RT
keywords vertexcategoriestensoralgebravirasoroaffinecertaincompletions
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abstract

We show that direct limit completions of vertex tensor categories inherit vertex and braided tensor category structures, under conditions that hold for example for all known Virasoro and affine Lie algebra tensor categories. A consequence is that the theory of vertex operator (super)algebra extensions also applies to infinite-order extensions. As an application, we relate rigid and non-degenerate vertex tensor categories of certain modules for both the affine vertex superalgebra of $\mathfrak{osp}(1|2)$ and the $N=1$ super Virasoro algebra to categories of Virasoro algebra modules via certain cosets.

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  1. Fusion rules and rigidity for weight modules over the simple admissible affine $\mathfrak{sl}(2)$ and $\mathcal{N}=2$ superconformal vertex operator superalgebras

    math.QA 2024-11 conditional novelty 7.0 of 10

    Rigidity of weight module categories for admissible affine sl(2) and N=2 superconformal minimal models is proved, together with the conjectured fusion product decompositions, including non-semisimple summands.

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