Subclass of analytic functions associated with Poisson distribution series

In this paper, we find the necessary and sufficient conditions, inclusion relations for Poisson distribution series K(m,z)=z+??n=2mn?1(n?1)!e?mzn belonging to a subclass TS(?,?,?) of analytic functions with negative coefficients. Further, we consider the integral operator G(m,z)=?z0F(m,t)tdt belonging to the above class.