COEFFICIENTS BOUNDS FOR A SUBCLASS OF BI-UNIVALENT FUNCTIONS DEFINED BY AL-OBOUDI DIFFERENTIAL OPERATOR
THERMAL SCIENCE, vol.26, 2022 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 26
- Publication Date: 2022
- Doi Number: 10.2298/tsci22s2583u
- Journal Name: THERMAL SCIENCE
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Directory of Open Access Journals
- Anadolu University Affiliated: Yes
Abstract
In this paper, we investigate a new subclass Sigma(n)(delta)(lambda,gamma,phi) of analytic and bi-univalent functions in the open unit disk u = {z:|z|<1}defined by Al-Oboudi differential operator. We obtain coefficient bounds |a(2)| and |a(3)| for functions belonging to subclass Sigma(n)(delta)(lambda,gamma,phi). Relevant connections of the results presented here with various well-known results are briefly indicated.