On geometric properties of generalized concave meromorphic functions

In this work, we introduce a generalized class of concave meromorphic functions denoted as K^n_{0}(\zeta)  defined by Salagean differential operator $\mathcal{D}^{n}$, which is an operator defined on the concave meromorphic function g(z),  D^{n}g(z) = D(D}^{n-1} g(z)), n \in N U 0, and study some of the properties namely; inclusion, integral representation, closure under an integral operator, sufficient condition, coefficient inequality, growth and distortion of this class.