Generalized coefficient estimates for a new subclass of analytic functions
Asian-European Journal of Mathematics, cilt.19, sa.3, 2026 (ESCI, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 19 Sayı: 3
- Basım Tarihi: 2026
- Doi Numarası: 10.1142/s1793557125500809
- Dergi Adı: Asian-European Journal of Mathematics
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, zbMATH
- Anahtar Kelimeler: analytic functions, Fekete-Szegö functional, q -Ruscheweyh differential operator, starlike and convex function of order β, Sǎlǎgean derivative operator
- Atatürk Üniversitesi Adresli: Evet
Özet
In this study, a new subclass of analytic functions in the open unit disk was defined with the help of the function obtained by applying the Sălăgean derivative to the q-Ruscheweyh derivative operator. For the functions belonging to this subclass, the coefficient bounds for the Fekete–Szegö functional were determined. The results of this paper are a generalization of the results of Kanas and Darwish [Fekete–Szegö problem for starlike and convex functions of complex order, Appl. Math. Lett. 23(7) (2010) 777–782].