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Estimates on the initial coefficients are obtained for normalized analytic functions f in the
open unit disk with f and its inverse g= f− 1 satisfying the conditions that zf′(z)/f (z) and …

In this paper, we introduce and investigate an interesting subclass HΣh, p of analytic and bi-
univalent functions in the open unit disk U. For functions belonging to the class HΣh, p, we …

In this article, by making use of the q-Srivastava-Attiya operator, we introduce and
investigate a new family SW Σ (δ, γ, λ, s, t, q, r) of normalized holomorphic and bi-univalent …

Motivated essentially by the recent works of Srivastava et al.[10], Frasin and Aouf [6], Xu et
al.[15], and other authors, the authors of the present sequel investigate the coefficient …

In this paper, we introduce and investigate an interesting subclass 𝒩 Σ h, p (λ, μ) of analytic
and bi-univalent functions in the open unit disk 𝕌. For functions belonging to the class 𝒩 Σ h …

In the present paper, a subclass of analytic and biunivalent functions by means of
Gegenbauer polynomials is introduced. Certain coefficients bound for functions belonging to …

Abstract In Geometric Function Theory, there have been many interesting and fruitful usages
of a wide variety of special functions and special polynomials. Here, in this article, we …

SΣ (λ, γ; ϕ), HS Σ (α), RΣ (η, γ; ϕ) and BΣ (μ; ϕ)(0⩽ λ⩽ 1; γ∈ C {0}; α∈ C; 0⩽ η< 1; μ⩾ 0) of
bi-univalent functions, ϕ is an analytic function with positive real part in the unit disk D …

Coefficient bounds for new subclasses of bi-univalent functions Page 1 Filomat 27:7 (2013),
1165–1171 DOI 10.2298/FIL1307165C Published by Faculty of Sciences and Mathematics …