Minimal Models of CFT on Z_N-Surfaces
arXiv:hep-th/9610051 · doi:10.1142/S0217751X97002334
Abstract
The conformal field theory on a Z_N-surface is studied by mapping it on the branched sphere. Using a coulomb gas formalism we construct the minimal models of the theory.
16 pages, latex, no figures; two important early references on the coset construction have been included; to appear in Mod. Phys. Lett