Strong differential sandwich results of l-pseudo-starlike functions with respect to symmetrical points

Abstract

In the present investigation, by considering suitable classes of admissible functions, we establish strong differential subordination and superordination properties for l-pseudo-starlike functions with respect to symmetrical points in the open unit disk U. These results are applied to obtain strong differential sandwich results.

Keywords

• strong differential subordination
• strong differential superordination
• l-pseudo-starlike functions
• symmetrical points
• admissible functions