PBW bases of irreducible Ising modules

Fuente: arXiv
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Main Author: Salazar, Diego
Format: Preprint
Published: 2023
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author Salazar, Diego
author_facet Salazar, Diego
contents To every $h + \mathbb{N}$-graded module $M$ over an $\mathbb{N}$-graded conformal vertex algebra $V$, we associate an increasing filtration $(G^pM)_{p \in \mathbb{Z}}$ which is compatible with the filtrations introduced by Haisheng Li. The associated graded vector space $\mathrm{gr}^G(M)$ is naturally a module over the vertex Poisson algebra $\mathrm{gr}^G(V)$. We study $\mathrm{gr}^G(M)$ for the three irreducible modules of the Ising model $\mathrm{Vir}_{3, 4}$, namely $\mathrm{Vir}_{3,4} = L(1/2, 0)$, $L(1/2, 1/2)$ and $L(1/2, 1/16)$. We obtain an explicit monomial basis of each of these modules and a formula for their refined characters which are related to Nahm sums for the matrix $\left(\begin{smallmatrix} 8 & 3 \\ 3 & 2 \end{smallmatrix}\right)$.
format Preprint
id arxiv_https___arxiv_org_abs_2306_07920
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle PBW bases of irreducible Ising modules
Salazar, Diego
Quantum Algebra
Combinatorics
17B69, 11P84
To every $h + \mathbb{N}$-graded module $M$ over an $\mathbb{N}$-graded conformal vertex algebra $V$, we associate an increasing filtration $(G^pM)_{p \in \mathbb{Z}}$ which is compatible with the filtrations introduced by Haisheng Li. The associated graded vector space $\mathrm{gr}^G(M)$ is naturally a module over the vertex Poisson algebra $\mathrm{gr}^G(V)$. We study $\mathrm{gr}^G(M)$ for the three irreducible modules of the Ising model $\mathrm{Vir}_{3, 4}$, namely $\mathrm{Vir}_{3,4} = L(1/2, 0)$, $L(1/2, 1/2)$ and $L(1/2, 1/16)$. We obtain an explicit monomial basis of each of these modules and a formula for their refined characters which are related to Nahm sums for the matrix $\left(\begin{smallmatrix} 8 & 3 \\ 3 & 2 \end{smallmatrix}\right)$.
title PBW bases of irreducible Ising modules
topic Quantum Algebra
Combinatorics
17B69, 11P84
url https://arxiv.org/abs/2306.07920