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Norm estimation for pre-Schwarzian and Schwarzian derivatives of some univalent functions

UDC 517.5 Our purpose is to obtain estimates for the norms of Schwarzian and pre-Schwarzian derivatives of strongly starlike functions and strongly convex functions of order $\alpha$ and type $\beta.$ In addition, we present an example of a function $f \in S^*(\alpha, \beta)$ that cannot be $k$-q...

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Bibliographic Details
Date:	2026
Main Authors:	Wu, Xiaobin, Zhu, Wanghao
Format:	Article
Language:	English
Published:	Institute of Mathematics, NAS of Ukraine 2026
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/8599
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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