Konu "Analytic" için Cilt:68 Sayı:01 (2019) listeleme
Toplam kayıt 2, listelenen: 1-2
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Coefficient estimates for bi-concave functions
(Ankara Üniversitesi, 2019-02-01)In this study,a new class C_{Σ}^{p,q}(α) of analytic and bi-concave functions were presented in the open unit disc. The coefficients estimates on the first two Taylor-Maclaurin coefficients |a₂| and |a₃| were found for ... -
Quasi-subordination and coefficient bounds for certain classes of meromorphic functions of complex order
(Ankara Üniversitesi Fen Fakültesi, 2019-02-01)In this paper, we obtain Fekete-Szegö functional |a₁-μa₀²| for functions of the classes Σ_{q}^{∗}(ϕ) and Σ_{q,λ,b}^{∗}(g,ϕ) using quasi-subordination. Sharp bounds for the Fekete-Szegö functional |a₁-μa₀²| are obtained. ...