Subclasses of meromorphically multivalent functions defined by a differential operator

Halit Orhan, Dorina Raducanu, Erhan Deniz

In this paper we introduce and study two new subclasses Σ_{λμ mp}(α,β)$and$Σ^{+}_{λμmp}(α,β)$ of meromorphically multivalent functions which are defined by means of a new differe…