COEFFICIENTS BOUNDS FOR A SUBCLASS OF BI-UNIVALENT FUNCTIONS DEFINED BY AL-OBOUDI DIFFERENTIAL OPERATOR

UYANIK N., Gokkurt Ozdemir O.

THERMAL SCIENCE, cilt.26, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26
  • Basım Tarihi: 2022
  • Doi Numarası: 10.2298/tsci22s2583u
  • Dergi Adı: THERMAL SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Directory of Open Access Journals
  • Anadolu Üniversitesi Adresli: Evet

Özet

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.