Differential sandwich theorems of p−valent analytic functions involving a linear operator

Abstract

In this paper we derive some subordination and superordination results for certain p-valent analytic functions in the open unit disc, which are acted upon by a class of a linear operator. Some of our results improve and generalize previously known results.

Keywords

• analytic function
• hadamard product
• differential subordination
• superordination
• linear operator