The Fekete-Szego inequality for subclasses of analytic functions related to modified Sigmoid functions

Kamali, Muhammet; ORHAN, Halit; ÇAĞLAR, MURAT

doi:10.3906/mat-1910-85

The Fekete-Szego inequality for subclasses of analytic functions related to modified Sigmoid functions

Kamali M., ORHAN H., ÇAĞLAR M.

TURKISH JOURNAL OF MATHEMATICS, cilt.44, sa.3, ss.1016-1026, 2020 (SCI-Expanded, Scopus, TRDizin)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 44 Sayı: 3
Basım Tarihi: 2020
Doi Numarası: 10.3906/mat-1910-85
Dergi Adı: TURKISH JOURNAL OF MATHEMATICS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, MathSciNet, zbMATH, TR DİZİN (ULAKBİM)
Sayfa Sayıları: ss.1016-1026
Anahtar Kelimeler: Analytic functions, modified Hadamard product, Sigmoid function, Fekete-Szego inequality
Atatürk Üniversitesi Adresli: Evet

Özet

In this paper, the authors investigate the initial coefficient bounds for a new generalized subclass of analytic functions related to Sigmoid functions. Also, the relevant connections with the famous classical Fekete-Szego inequality for these classes are discussed.