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
Murat Çağlar Kafkas Üniversitesi, Türkiye
Prof. Dr. Erhan DENİZ Kafkas Üniversitesi, Türkiye
Mirzaolim Turabaev
Kırgızistan-Türkiye Manas Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Turkish Journal of Mathematics (Q3)
Dergi ISSN 1300-0098 Wos Dergi Scopus Dergi
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
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)

+ (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.
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