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

Document Type : Research Paper


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


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.


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Volume 14, Issue 11
November 2023
Pages 53-61
  • Receive Date: 17 December 2022
  • Revise Date: 08 February 2023
  • Accept Date: 03 March 2023