Representations of affine Nappi–Witten algebras
Representations of affine Nappi–Witten algebras
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DOI:
10.1016/j.jalgebra.2011.05.020
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发表时间:
2011-04
影响因子:
0.9
通讯作者:
Yixin Bao;Cuipo Jiang;Yufeng Pei
中科院分区:
文献类型:
--
作者:
Yixin Bao;Cuipo Jiang;Yufeng Pei
In this paper, we study the representation theory for the affine Lie algebra Hˆ4associated to the Nappi–Witten model H4. We classify all the irreducible highest weight modules of Hˆ4. Furthermore, we give a necessary and sufficient condition for each Hˆ4-(generalized) Verma module to be irreducible. For reducible ones, we characterize all the linearly independent singular vectors. Finally, we construct Wakimoto type modules for these Lie algebras and interpret this construction in terms of vertex operator algebras and their modules.