D. Nemeschansky et Np. Warner, THE REFINED ELLIPTIC GENUS AND COULOMB GAS FORMULATIONS OF N=2 SUPERCONFORMAL COSET MODELS, Nuclear physics. B, 442(3), 1995, pp. 623-654
We describe, in some detail, a number of different Coulomb gas formula
tions of N = 2 superconformal coset models. We also give the mappings
between these formulations. The ultimate purpose of this is to show ho
w the Landau-Ginzburg structure of these models can be used to extract
the W-generators, and to show how the computation of the elliptic gen
us can be refined so as to extract very detailed information about the
characters of component parts of the model.