Algebra of screening operators for the deformed $W_n$ algebra
arXiv:q-alg/9702029 · doi:10.1007/s002200050276
Abstract
We construct a family of intertwining operators (screening operators) between various Fock space modules over the deformed $W_n$ algebra. They are given as integrals involving a product of screening currents and elliptic theta functions. We derive a set of quadratic relations among the screening operators, and use them to construct a Felder-type complex in the case of the deformed $W_3$ algebra.
46 pages