Results on Second-Order Hankel Determinants for Convex Functions with Symmetric Points

• Published in: Symmetry (Basel) Vol. 15; no. 4; p. 939
• Main Authors: Ullah, Khalil, Al-Shbeil, Isra, Faisal, Muhammad, Arif, Muhammad, Alsaud, Huda
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.04.2023
• Subjects: Coefficients; convex functions with respect to symmetric points; Estimates; Hankel determinant problems; Hyperbolic functions; Inequality; logarithmic and inverse coefficients; MacLaurin series; Mathematical analysis; subordinations; Zalcman functionals

One of the most important problems in the study of geometric function theory is knowing how to obtain the sharp bounds of the coefficients that appear in the Taylor–Maclaurin series of univalent functions. In the present investigation, our aim is to calculate some sharp estimates of problems involvi...