Abstract
We give an example of an irrational C 2-cofinite vertex operator algebra whose central charge is −2d for any positive integer d. This vertex operator algebra is given as the even part of the vertex operator superalgebra generated by d pairs of symplectic fermions, and it is just the realization of the c = −2-triplet algebra given by Kausch in the case d = 1. We also classify irreducible modules for this vertex operator algebra and determine its automorphism group.
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This research is supported in part by a grant from Japan Society for the Promotion of Science.
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Abe, T. A \(\mathbb{Z}_{2}\)-orbifold model of the symplectic fermionic vertex operator superalgebra. Math. Z. 255, 755–792 (2007). https://doi.org/10.1007/s00209-006-0048-5
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DOI: https://doi.org/10.1007/s00209-006-0048-5