Associated varieties of simple affine VOAs $L_k(s{l}_3)$ and $W$-algebras $W_k(s{l}_3,f)$

Abstract

In this paper we first prove that the maximal ideal of the universal affine vertex operator algebra $V^k(s{l}_n)$ for $k=-n+\frac{n-1}{q}$ is generated by two singular vectors of conformal weight $3q$ if $n=3$, and by one singular vector of conformal weight $2q$ if $n\ge 4$. We next determine the associated varieties of the simple vertex operator algebras $L_k(s{l}_3)$ for all the non-admissible levels $k=-3+\frac{2}{2m+1}$, $m\ge 0$. The varieties of the associated simple affine $W$-algebras $W_k(s{l}_3,f)$, for nilpotent elements $f$ of $s{l}_3$, are also determined.

arXiv comment39 pages

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