Pawel ZAPRAWA

On the Fekete--Szeg\"{o} type functionals for starlike and convex functions

In the paper we discuss two functionals of the Fekete--Szeg\"{o} type: $\Phi_f(\mu) = a_2 a_4-\mu a_3{}^2$ and $\Theta_f(\mu) = a_4-\mu a_2a_3$ for an analytic function $f(z) = z+a_2z^2+a_3z^3+\ldots$, $z\in\Delta$, ($\Delta = \{z\in\mathbb{C}:|z|

Keywords:

Starlike functions, convex functions, Hankel determinant functional of Fekete--Szeg\"{o} type,

PDF

ISSN: 1300-0098
Yayın Aralığı: 6
Yayıncı: TÜBİTAK

Arşiv

Sayıdaki Diğer Makaleler

Saida SANDEL, Abdelhamid AYADI

Nageswara Rao KARREY, Germina Kizhekekunnel AUGUSTINE

Namita DAS, Jitendra Kumar BEHERA

Yilmaz ŞİMŞEK

Sunil Dutt PUROHIT, Faruk UÇAR

Nurbol ISMAILOV, Şuayip YÜZBAŞI

Muhammad WASEEM, Muhammad ASLAM NOOR, Farooq AHMED SHAH, Khalida INAYAT NOOR

Tomasz R. BIELECKI, Monique JEANBLANC, Ali Devin SEZER

Fatih ECEVİT

İsmet ALTINTAŞ, Kemal TAŞKÖPRÜ