Open AccessCoefficient estimates for a subclass of bi-univalent functions involving the q-derivatives operator
Author(s) -
Timilehin Gideon Shaba,
Abbas Kareem Wanas
Publication year - 2021
Publication title -
general mathematics
Language(s) - English
Resource type - Journals
eISSN - 1584-3289
pISSN - 1221-5023
DOI - 10.2478/gm-2021-0004
Subject(s) - subclass , operator (biology) , mathematics , derivative (finance) , combinatorics , unit (ring theory) , discrete mathematics , pure mathematics , chemistry , medicine , biochemistry , mathematics education , repressor , transcription factor , financial economics , antibody , economics , immunology , gene
In this current study, we introduce and investigate a new subclass of holormorphic and bi-univalent functions η,ϕ q ( ϑ ) in the unit disk λ associated with q -derivative operator. The coefficient estimates | b 2 | and | b 3 | on the new subclass are obtained and important results are indicated.