Hankel determinants for starlike and convex functions associated with sigmoid functions

DOI10.1515/forum-2021-0188zbMath1486.30048OpenAlexW3215900509MaRDI QIDQ2121555

Derek K. Thomas, Mohsan Raza, Amina Riaz

Publication date: 4 April 2022

Published in: Forum Mathematicum (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1515/forum-2021-0188

zbMATH Keywords

convex functionsHankel determinantscoefficient estimatesstar-like functionssigmoid functions

Mathematics Subject Classification ID

Special classes of univalent and multivalent functions of one complex variable (starlike, convex, bounded rotation, etc.) (30C45) Coefficient problems for univalent and multivalent functions of one complex variable (30C50)

Related Items (4)

Sharp bounds on the Hankel determinant of the inverse functions for certain analytic functions ⋮ The third Hankel determinant for starlike and convex functions associated with lune ⋮ The Second Hankel Determinant for k-symmetrical Functions ⋮ THE THIRD HANKEL DETERMINANT FOR INVERSE COEFFICIENTS OF CONVEX FUNCTIONS

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