A class of simple weight Virasoro modules
A class of simple weight Virasoro modules
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一类简单重量 Virasoro 模块
DOI:
10.1016/j.jalgebra.2014.08.054
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发表时间:
2012-11
影响因子:
0.9
通讯作者:
Zhao Kaiming
中科院分区:
文献类型:
--
作者:
Liu Genqiang;Lu Rencai;Zhao Kaiming
For a simple module M over the positive part of the Virasoro algebra (actually for any simple module over some finite dimensional solvable Lie algebras a r) and any α∈ C, a class of weight modules N (M, α) over the Virasoro algebra is constructed. These weight modules have infinite dimensional weight spaces if dim M> 1. The necessary and sufficient conditions for N (M, α) to be simple are obtained. We also determine the necessary and sufficient conditions for two such irreducible Virasoro modules to be isomorphic. Many examples for such irreducible Virasoro modules with different features are provided. In particular the irreducible weight Virasoro modules Γ (α 1, α 2, λ 1, λ 2) are defined on the polynomial algebra C [x]⊗ C [t, t− 1] for any α 1, α 2, λ 1, λ 2∈ C with λ 1 or λ 2 nonzero. By twisting the weight modules N (M, α) we also obtain nonweight simple Virasoro modules N (M, β) for any nonconstant β∈ C [t, t− 1].
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DOI:
10.1007/978-0-85729-160-8
发表时间:
2010-11
期刊:
--
影响因子:
--
作者:
K. Iohara;Y. Koga
通讯作者:
K. Iohara;Y. Koga
影响因子:
1.4
作者:
T. Inami;H. Kanno;T. Ueno
通讯作者:
T. Inami;H. Kanno;T. Ueno
DOI:
10.1007/s00029-013-0140-8
发表时间:
2012-05
期刊:
Selecta Math.
影响因子:
--
作者:
赵开明;V. Mazorchuk
通讯作者:
V. Mazorchuk
影响因子:
3.1
作者:
O. Mathieu
通讯作者:
O. Mathieu
DOI:
10.1142/8882
发表时间:
1983
期刊:
--
影响因子:
--
作者:
V. Kac;A. Raina;N. Rozhkovskaya
通讯作者:
V. Kac;A. Raina;N. Rozhkovskaya