Elliptic Deformed Superalgebra $u_{q,p}(\hat{{sl}}(M|N))$
  We introduce the elliptic superalgebra $U_{q,p}(\hat{sl}(M|N))$ as one parameter deformation of the quantum superalgebra $U_q(\hat{sl}(M|N))$. For an arbitrary level $k \neq 1$ we give the bosonization of the elliptic superalgebra $U_{q,p}(\hat{sl}(1|2))$ and the screening currents that commute with $U_{q,p}(\hat{sl}(1|2))$ modulo total difference. 
Takeo Kojima
nlin.SI hep-th math-ph math.MP math.QA