English

Logarithmic coefficients of some close-to-convex functions

Complex Variables 2016-08-25 v1

Abstract

The logarithmic coefficients γn\gamma_n of an analytic and univalent function ff in the unit disk D={zC:z<1}\mathbb{D}=\{z\in\mathbb{C}:|z|<1\} with the normalization f(0)=0=f(0)1f(0)=0=f'(0)-1 are defined by logf(z)z=2n=1γnzn\log \frac{f(z)}{z}= 2\sum_{n=1}^{\infty} \gamma_n z^n. In the present paper, we consider close-to-convex functions (with argument 00) with respect to odd starlike functions and determine the sharp upper bound of γn|\gamma_n|, n=1,2,3n=1,2,3 for such functions ff.

Keywords

Cite

@article{arxiv.1607.08700,
  title  = {Logarithmic coefficients of some close-to-convex functions},
  author = {Md. Firoz Ali and A. Vasudevarao},
  journal= {arXiv preprint arXiv:1607.08700},
  year   = {2016}
}

Comments

09 pages. arXiv admin note: substantial text overlap with arXiv:1606.05162

R2 v1 2026-06-22T15:07:26.878Z