Coefficient inequalities for new subclasses of bi-univalent functions defined by using the function δ

Sağsöz F., Orhan H.

Asian-European Journal of Mathematics, cilt.15, sa.9, 2022 (ESCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 15 Sayı: 9
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1142/s1793557122501601
  • Dergi Adı: Asian-European Journal of Mathematics
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, zbMATH
  • Anahtar Kelimeler: Univalent function, bi-univalent function, coefficient bounds, Salagean differential operator, 2ND HANKEL DETERMINANT, STARLIKE
  • Atatürk Üniversitesi Adresli: Evet

Özet

© 2022 World Scientific Publishing Company.In this investigation, we introduce and study two new subclasses of bi-univalent functions defined by using the function f and Salagean differential operator. Furthermore, we find estimates on the coefficients |a2| and |a3| for these function classes.