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arXiv 1906.07129math.RT
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超Virasoro代数上的一类非权模

A family of non-weight modules over the super-Virasoro algebras

Hengyun Yang, Yufeng Yao, Limeng Xia

摘要:

本文构造了超Virasoro代数上的一类非权模。当这些模被看作Ramond代数的模并进一步被限制为Cartan子代数$\mathfrak{h}$上的模时,$1$是无秩的,而当这些模被看作Neveu-Schwarz代数的模并进一步被限制为Cartan子代数$\mathfrak{H}$上的模时,$2$是无秩的。我们得到了这类模是简单模的一个充分和必要条件。此外,我们还确定了这些模的同构类。最后,我们证明了这些模构成了Ramond型超Virasoro代数上秩为$1$的自由$U(\mathfrak{h})$ -模的一个完全分类,也构成了Neveu-Schwarz型超Virasoro代数上秩为$2$的自由$U(\mathfrak{H})$ -模的一个完全分类.

英文摘要:

In this paper, we construct a family of non-weight modules over the super-Virasoro algebras. Those modules when regarded as modules of the Ramond algebra and further restricted as modules over the Cartan subalgebra $\mathfrak{h}$ are free of rank $1$, while when regarded as modules of the Neveu-Schwarz algebra and further restricted as modules over the Cartan subalgebra $\mathfrak{H}$ are free of rank $2$. We obtain a sufficient and necessary condition for such modules to be simple. Moreover, we determine the isomorphism classes of these modules. Finally, we show that these modules constitute a complete classification of free $U(\mathfrak{h})$-modules of rank $1$ over the super-Virasoro algebra of Ramond type, and also constitute a complete classification of free $U(\mathfrak{H})$-modules of rank $2$ over the super-Virasoro algebra of Neveu-Schwarz type.

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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