A new class of irreducible Virasoro modules from tensor product

A new class of irreducible Virasoro modules from tensor product
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DOI:
10.1016/j.jalgebra.2019.08.035
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发表时间:
2020
期刊:
影响因子:
0.9
通讯作者:
Xuewen Liu;Xiangqian Guo;Jing Wang
Xuewen Liu;Xiangqian Guo;Jing Wang
中科院分区:
数学3区
文献类型:
--
作者:
Xuewen Liu;Xiangqian Guo;Jing Wang

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在本文中,我们通过将不可约 Virasoro 模块 Ω (λ, α, h) 和 Ω (μ, β) 与不可约最高权重模块 V (θ, h) 或与[20]中定义的不可约 Virasoro 模块 Ind θ (N) 进行张量积来获得一类 Virasoro 模块。我们得到了此类张量积模不可约的充要条件,并确定了其中两个张量积模同构的充要条件。我们还将这些模块与其他已知的非重量 Virasoro 模块进行了比较,表明这些简单模块中的大多数都是新的。
In this paper, we obtain a class of Virasoro modules by taking tensor products of the irreducible Virasoro modules Ω (λ, α, h) and Ω (μ, β) with irreducible highest weight modules V (θ, h) or with irreducible Virasoro modules Ind θ (N) defined in [20]. We obtain the necessary and sufficient conditions for such tensor product modules to be irreducible, and determine the necessary and sufficient conditions for two of them to be isomorphic. We also compare these modules with other known non-weight Virasoro modules, showing that most of these simple modules are new.