Bosonization and vertex operator of supersymmetry $u_q(\hat{sl}(n|1))$   for level $k$
  We construct a bosonization of the quantum superalgebra $U_q(\hat{sl}(N|1))$ for an arbitrary level $k$. We construct the screening that commutes with the quantum superalgebra for an arbitrary level $k \neq -N+1$. We propose a bosonization of the vertex operator that gives the intertwiner among the Wakimoto realization and the typical representation. 
Takeo Kojima
nlin.SI hep-th math.QA quant-ph