Differential subordination and superordination on p-valent meromorphic functions defined by extended multiplier transformations

Abstract

In this paper we derive some differential subordination and superordination results for p- valent meromorphic functions in the punctured unit disc, which are acted upon by a class of extended multiplier transformations. These results are obtained by investigating appropriate classes of admissible functions. Sandwich-type results are also obtained. 2000 Mathematics Subject Classifications: 30C45