Irreducible weight modules over the twisted Schrödinger-Virasoro algebra

Irreducible weight modules over the twisted Schrödinger-Virasoro algebra
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DOI:
10.1007/s10114-009-7326-1
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发表时间:
2009-03
期刊:
Acta Mathematica Sinica, English Series
影响因子:
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通讯作者:
Jun Li;Yu-cai Su
Jun Li;Yu-cai Su
中科院分区:
其他
文献类型:
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作者:
Jun Li;Yu-cai Su

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结果表明,具有无限维权重空间的薛定谔-维拉索罗李代数上的不可约权重模块的支持与权重格一致,并且该模块的所有非平凡权重空间都是无限维的。作为副产品,可以得出具有非平凡有限维权空间的这种类型的李代数上的每个简单权模块都是 Harish-Chandra 模块。
It is shown that the support of an irreducible weight module over the Schrödinger-Virasoro Lie algebra with an infinite-dimensional weight space coincides with the weight lattice, and all nontrivial weight spaces of such a module are infinite-dimensional. As a by-product, it is obtained that every simple weight module over Lie algebra of this type with a nontrivial finite-dimensional weight space is a Harish-Chandra module.