Finite Dimensional Irreducible Representations of LieSuperalgebra D(2,1；α)

Abstract

This paper focuses on the finite dimensional irreducible representations of Lie superalgebra D(2, 1; α). We explicitly constructed the finite dimensional representations of the superalgebra D(2,1; α) by using the shift operator and differential operator representations. Unlike ordinary Lie algebra representation, there are typical and atypical representations for most superalgebras. So, it’s typical and atypical representations condition also given. Our results are expected to be useful for the construction of primary fields of the corresponding current superalgebra of D(2,1; α).