Non-weight modules over the Heisenberg-Virasoro algebra and the W algebra W(2,2)
Non-weight modules over the Heisenberg-Virasoro algebra and the W algebra W(2,2)
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Heisenberg-Virasoro 代数和 W 代数 W(2,2) 上的非权重模
DOI:
10.1142/s0219498817500979
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发表时间:
2017
影响因子:
0.8
通讯作者:
Guo Xiangqian
中科院分区:
文献类型:
--
作者:
Chen Hongjia;Guo Xiangqian
In this paper, we construct and study some non-weight modules for the Heisenberg–Virasoro algebra and the W algebra W(2, 2). We determine the modules, whose restriction to the universal enveloping algebra of the degree-0 part (modulo center) are free of rank 1 for these two algebras. In the most interesting case, this degree-0 part is not the Cartan subalgebra. We also determine the simplicity of these modules, which provide new simple modules for the W algebra W(2, 2).