The Third Logarithmic Coefficient For The Subclasses Of Close-To-Convex Functions

Najla M. Alarifi

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arXiv · 2008.01861

The Third Logarithmic Coefficient For The Subclasses Of Close-To-Convex Functions

Najla M. Alarifi

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Abstract

Let $\mathcal{A}$ denote the set of all analytic functions $f$ in the unit disk $\mathbb{D}:=\{z \in \mathbb{C}: |z| < 1\}$ normalized by $f (0) = 0$ and $f'(0) = 1.$ The logarithmic coefficients $\gamma_n$ of $f \in \mathcal{A}$ are defined by $ \log f(z)/z =2 \sum_{n=1}^{\infty}\gamma_{n}z^{n}.$ In the present paper, the upper bound of the third logarithmic coefficient in general case of $f''(0)$ was computed when $f$ belongs to some familiar subclasses of close-to-convex functions.

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Najla M. Alarifi. 2020-08-04. The Third Logarithmic Coefficient For The Subclasses Of Close-To-Convex Functions. https://arxiv.org/abs/2008.01861

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