Document Type : Research Paper

Author

• Samira Rahrovi

Department of Mathematics, Faculty of Basic Science, University of Bonab, Bonab, Iran.

Abstract

In present paper a certain convolution operator of analytic functions is defined. Moreover, subordination and superordination- preserving properties for a class of analytic operators defined on the space of normalized analytic functions in the open unit disk is obtained. We also apply this to obtain sandwich results and generalizations of some known results.

Keywords

• Analytic function
• Convolution operator
• Differential subordination
• Sandwich theorem