English

Estimates for initial coefficients of certain bi-univalent functions

Complex Variables 2020-06-23 v1

Abstract

Estimates are obtained for the initial coefficients of a normalized analytic function ff in the unit disk D\mathbb{D} such that ff and the analytic extension of f1f^{-1} to D\mathbb{D} belong to certain subclasses of univalent functions. The bounds obtained improve some existing known bounds.

Keywords

Cite

@article{arxiv.2006.11742,
  title  = {Estimates for initial coefficients of certain bi-univalent functions},
  author = {Vibha Madaan and Ajay Kumar and V. Ravichandran},
  journal= {arXiv preprint arXiv:2006.11742},
  year   = {2020}
}
R2 v1 2026-06-23T16:29:36.711Z