Sharp starlike and convex radius for the differential operator of analytic functions

UDC 517.5 Under given coefficient conditions for analytic functions $f$ in the unit disk $\mathbf{D}$, we first obtain the starlike and convex radius  for the linear  combination of the differential operator  $zf'$ of analytic functions $f...

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Bibliographic Details
Date:2025
Main Authors: Hu, Zhenyong, Srivastava, H. M., Zhang, Ying
Format: Article
Language:English
Published: Institute of Mathematics, NAS of Ukraine 2025
Online Access:https://umj.imath.kiev.ua/index.php/umj/article/view/7788
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Journal Title:Ukrains’kyi Matematychnyi Zhurnal
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Ukrains’kyi Matematychnyi Zhurnal