Closure properties of generalized λ-Hadamard product for a class of meromorphic Janowski functions

Abstract

In this paper, we introduce a class of meromorphic starlike function by subordination relationship and generalized λ-Hadamard product. We obtain the necessary and sufficient conditions and closure properties of the class. In addition, some new results of the class are given.

Keywords

• meromorphic function
• janowski functions
• hadamard product
• generalized λ-hadamard product
• closure property