On intertwining operators and finite automorphism groups of vertex operator algebras
arXiv:math/0501312 · doi:10.1016/j.jalgebra.2005.01.044
Abstract
Let V be a simple vertex operator algebra and G a finite automorphism group. We give a construction of intertwining operators for irreducible V^G-modules which occur as submodules of irreducible V-modules by using intertwining operators for V. We also determine some fusion rules for a vertex operator algebra as an application.
26 pages