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Principle subspace for bosonic vertex operator $ϕ_{\sqrt{2m}}(z)$ and Jack polynomials

B. Feigin·E. Feigin
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Abstract

Let $ϕ_{\sqrt{2m}}(z)=\sum_{n\in\Z} a_n z^{-n-m}, m\in\N$ be bosonic vertex operator, $L$ some irreducible representation of the vertex algebra $\A_{(m)}$, associated with one-dimensional lattice $\Zl$, generated by vector $l$, $\bra l,l \ket=2m$. Fix some extremal vector $v\in L$. We study the principle subspace $\C[a_i]_{i\in\Z}\cdot v$ and its finitization $\C[a_i]_{i>N}\cdot v$. We construct their bases and find characters. In the case of finitization basis is given in terms of Jack polynomials.

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B. Feigin, E. Feigin. 2004-07-22. Principle subspace for bosonic vertex operator $ϕ_{\sqrt{2m}}(z)$ and Jack polynomials. https://arxiv.org/abs/math/0407372

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