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三元组顶点算子代数的Yoneda代数

Yoneda algebras of the triplet vertex operator algebra

Antoine Caradot, Cuipo Jiang, Zongzhu Lin

AI总结:

本文以三元组顶点算子代数W(p)为例,通过确定Ext箭图、Morita等价基本代数和Yoneda代数,比较其可容许模范畴、Zhu代数模范畴和C2-代数模范畴,并揭示这些范畴的无限全局维数及Koszul性质。

摘要:

给定一个顶点算子代数$V$,可以构造两个结合代数,即Zhu代数$A(V)$和$C_2$-代数$R(V)$。由此产生两个阿贝尔范畴$A(V)-\text{Mod}$和$R(V)-\text{Mod}$,此外还有$V$的可容许模范畴。当$V$是有理的且$C_2$-余有限的,可容许$V$-模范畴与所有$A(V)$-模范畴是等价的。然而,当$V$不是有理的时,这两个范畴之间的联系尚不清楚。本文的目标是研究三元组顶点算子代数$\mathcal{W}(p)$,作为一个例子,从阿贝尔范畴的角度比较这三个范畴。对于这三个阿贝尔范畴中的每一个,我们将确定相关的Ext箭图、Morita等价基本代数,即代数$\text{End} (\oplus_{L\in \text{Irr}} P_L)^{op}$,以及Yoneda代数$\text{Ext}^{*}(\oplus_{L\in \text{Irr}}L, \oplus_{L\in \text{Irr}}L)$。作为结果,三元组顶点算子代数$\mathcal W(p)$的可容许log-模范畴具有无限全局维数,Zhu代数$A(\mathcal W(p))$以及与之关联的分次代数$\text{gr} \\ A(\mathcal W(p))$(同构于$R(\mathcal W(p))$)也是如此。我们还描述了$\mathcal W(p)$、$A(\mathcal W(p))$和$\text{gr} \\ A(\mathcal W(p))$的模范畴的Koszul性质。

英文摘要:

Given a vertex operator algebra $V$, one can construct two associative algebras, the Zhu algebra $A(V)$ and the $C_2$-algebra $R(V)$. This gives rise to two abelian categories $A(V)-\text{Mod}$ and $R(V)-\text{Mod}$, in addition to the category of admissible modules of $V$. In case $V$ is rational and $C_2$-cofinite, the category of admissible $V$-modules and the category of all $A(V)$-modules are equivalent. However, when $V$ is not rational, the connection between these two categories is unclear. The goal of this paper is to study the triplet vertex operator algebra $\mathcal{W}(p)$, as an example to compare these three categories, in terms of abelian categories. For each of these three abelian categories, we will determine the associated Ext quiver, the Morita equivalent basic algebra, i.e., the algebra $ \text{End} (\oplus_{L\in \text{Irr}} P_L)^{op}$, and the Yoneda algebra $\text{Ext}^{*}(\oplus_{L\in \text{Irr}}L, \oplus_{L\in \text{Irr}}L)$. As a consequence, the category of admissible log-modules for the triplet VOA $ \mathcal W(p)$ has infinite global dimension, as do the Zhu algebra $A(\mathcal W(p))$, and the associated graded algebra $\text{gr} \ A(\mathcal W(p))$ which is isomorphic to $R(\mathcal W(p))$. We also describe the Koszul properties of the module categories of $ \mathcal W(p)$, $A(\mathcal W(p))$ and $\text{gr} \ A(\mathcal W(p))$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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