Coefficient estimates for a subclass of meromorphic bi-univalent functions defined by subordination

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Adegani E. A., Motamednezhad A., BULUT S.

STUDIA UNIVERSITATIS BABES-BOLYAI MATHEMATICA, cilt.65, sa.1, ss.57-66, 2020 (ESCI)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 65 Sayı: 1
• Basım Tarihi: 2020
• Doi Numarası: 10.24193/subbmath.2020.1.05
• Dergi Adı: STUDIA UNIVERSITATIS BABES-BOLYAI MATHEMATICA
• Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
• Sayfa Sayıları: ss.57-66
• Kocaeli Üniversitesi Adresli: Evet

Özet

In this work, we use the Faber polynomial expansion by a new method to find upper bounds for vertical bar b(n)vertical bar coefficients for meromorphic bi-univalent functions class Sigma' which is defined by subordination. Further, we generalize and improve some of the previously published results.