### Fourth-order differential subordination and superordination results of meromorphic multivalent functions defined by multiplier transformation

Document Type : Research Paper

Authors

1 Department of Mathematics, Faculty of Education for Girls, University of Kufa, Najaf, Iraq

2 Department of Mathematics, College of Science, University of Al-Qadisiyah, Diwaniyah, Iraq

Abstract

In this paper, we obtain some applications of fourth-order differential subordination and superordination results involving multiplier transformation $H_p (\tau,\psi)$, for p-valent functions. Also, we obtain several sandwich-type results.

Keywords