Academic Researches Index
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Dergiler Duyurular İstatistikler Standartlar Hakkımızda İletişim
  1. Turkish Journal of Mathematics
  2. Arşiv
  3. 2018
  4. Cilt: 42 - Sayı: 2
  5. 537 -547
Pawel ZAPRAWA

12594

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

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,

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Turkish Journal of Mathematics-Cover
  • ISSN: 1300-0098
  • Yayın Aralığı: 6
  • Yayıncı: TÜBİTAK
Arşiv
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The Cauchy–Kowalevski theorem applied for counting connections with a prescribed Ricci tensor

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

Pawel ZAPRAWA

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