Differential subordinations and superordinations result for analytic univalent functions using the Darus-Faisal operator

In this paper, we introduce some differential subordinations and superordinations results for a subclass of analytic univalent functions in the open unit disk U using the Darus-Faisal operator G^{m}_{\lambda} (\sigma,\delta,\tau). Also, we study some sandwich theorems.

کلیدواژه ها:

univalent function ، subordination ، Superordination ، Sandwich ، Darus-Faisal operator