Open AccessOn Sandwich Theorems for Certain Univalent Functions Defined by a New operator
Author(s) -
Waggas Galib Atshan,
Elaf Ibrahim Badawi
Publication year - 2019
Publication title -
magallaẗ al-qādisiyyaẗ li-ʿulūm al-ḥāsibāt wa-al-riyāḍiyyāt
Language(s) - English
Resource type - Journals
eISSN - 2521-3504
pISSN - 2074-0204
DOI - 10.29304/jqcm.2019.11.2.551
Subject(s) - subordination (linguistics) , univalent function , operator (biology) , mathematics , unit disk , differential (mechanical device) , unit (ring theory) , differential operator , pure mathematics , discrete mathematics , analytic function , physics , chemistry , philosophy , linguistics , biochemistry , mathematics education , repressor , transcription factor , gene , thermodynamics
In this paper, we study some differential subordination and superordination results for certain univalent functions in the open unit disc U by using a new operator . Also, we derive some sandwich theorems.