id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ejpam-5968	Zeyani, Abdelbaset ; Hussen, Abdulmtalb 	Second Hankel Determinant for a Bi-univalent Function Subclass Based Gegenbauer (Ultraspherical) Polynomials	2025	17	.pdf	application/pdf	6855	361	84	Let Ξ be denoting the class of bi-univalent functions in U given by (5). Herein, we recall the following examples of functions in the bi-univalent function class Ξ that have apparently revived the study of bi-univalent functions in recent years: f1(ζ) = ζ 1− ζ , f2(ζ) = −log(1− ζ), and f3(ζ)	cache/ejpam-5968.pdf	txt/ejpam-5968.txt