Nonsemisimple Fusion Algebras and the Verlinde Formula
arXiv:hep-th/0306274 · doi:10.1007/s00220-004-1058-y
Abstract
We find a nonsemisimple fusion algebra F_p associated with each (1,p) Virasoro model. We present a nonsemisimple generalization of the Verlinde formula which allows us to derive F_p from modular transformations of characters.
LaTeX (amsart, xypic, times), 35pp