Intertwining operators and fusion rules for vertex operator algebras arising from symplectic fermions. (English) Zbl 1317.17031
Summary: We determine fusion rules (dimensions of the spaces of intertwining operators) among simple modules for the vertex operator algebra obtained as an even part of the symplectic fermionic vertex operator superalgebra. By using these fusion rules we show that the fusion algebra of this vertex operator algebra is isomorphic to the group algebra of the Klein four group over \(\mathbb Z\).
MSC:
| 17B69 | Vertex operators; vertex operator algebras and related structures |
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