Admissible sl(2/1) Characters and Parafermions
M. Hayes, A. Taormina
Abstract
The branching functions of the affine superalgebra sl(2/1) characters into characters of the affine subalgebra sl(2) are calculated for fractional levels k=1/u-1, u positive integer. They involve rational torus Au(u-1) and Zu-1 parafermion characters.
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