Vertex operator algebras, generalized doubles and dual pairs
Vertex operator algebras, generalized doubles and dual pairs
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DOI:
10.1007/s002090200421
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发表时间:
2000-06
影响因子:
0.8
通讯作者:
C. Dong;G. Yamskulna
中科院分区:
文献类型:
--
作者:
C. Dong;G. Yamskulna
LetVbe a simple vertex operator algebra andGa finite automorphism group. Then there is a natural rightG-action on the set of all inequivalent irreducibleV-modules. Letbe a finite set of inequivalent irreducibleV-modules which is closed under the action ofG. There is a finite dimensional semisimple associative algebrafor a suitable 2-cocyclenaturally determined by theG-action onsuch thatand the vertex operator algebraform a dual pair on the sum ofV-modules inin the sense of Howe. In particular, every irreducibleV-module is completely reducible-module.