Fekete-Szegö problem for a new subclass of analytic functions satisfying subordinate condition associated with Chebyshev polynomials
Yazarlar (4)
Muhammet Kamali
Kırgızistan-Türkiye Manas Üniversitesi, Türkiye
Prof. Dr. Murat Çağlar Kafkas Üniversitesi, Türkiye
Prof. Dr. Erhan DENİZ Kafkas Üniversitesi, Türkiye
Mirzaolim Turabaev
Kırgızistan-Türkiye Manas Üniversitesi, Kırgızistan
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Turkish Journal of Mathematics (Q2)
Dergi ISSN 1300-0098 Dergi Bilgileri (2021)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 01-2021
Cilt / Sayı / Sayfa 45 / 3 / 1195–1208 DOI 10.3906/mat-2101-20
Makale Linki http://dx.doi.org/10.3906/mat-2101-20
UAK Araştırma Alanları
Matematiksel Analiz
Özet
In this paper,we define a class of analytic functions F(β,λ) (H, α, δ, µ), satisfying the following subordinate
condition associated with Chebyshev polynomials 

α
[
zG′
(z)
G (z)
]δ
+ (1 − α)
[
zG′
(z)
G (z)
]µ [
1 + zG′′ (z)
G
′
(z)
]1−µ



≺ H (z, t),
where G (z) = λβz2
f
′′ (z) + (λ − β) zf′
(z) + (1 − λ + β) f (z), 0 ≤ α ≤ 1, 1 ≤ δ ≤ 2, 0 ≤ µ ≤ 1, 0 ≤ β ≤ λ ≤ 1 and
t ∈
(
1
2
, 1
]
. We obtain initial coefficients |a2| and |a3| for this subclass by means of Chebyshev polynomials expansions
of analytic functions in D. Furthermore, we solve Fekete-Szegö problem for functions in this subclass.We also provide
relevant connections of our results with those considered in earlier investigations. The results presented in this paper
improve the earlier investigations.
Anahtar Kelimeler
Analytic and univalent functions | subordination | Chebyshev polynomials | coefficient estimates | Fekete-Szego inequality
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Yöksis 4
Web of Science 22
TR Dizin 1
Fekete-Szegö problem for a new subclass of analytic functions satisfying subordinate condition associated with Chebyshev polynomials