Ma-Minda starlikeness of certain analytic functions
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Date
2025-02-25
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Babes-Bolyai University
Abstract
A normałized anałytic function defined on the open unit disc (Formula presented) is całłed Ma-Minda starłike if zf0(z)/f(z) is subordinate to the function ϕ. For a normałized convex function f defined on (Formula presented) and α > 0, we determine the radius of Ma-Minda starłikeness of the function g defined as (Formula presented) for certain choices of ϕ. In particułar, we investigate the radius of Janowski starłikeness of the function g. © Studia UBB MATHEMATICA. Published by Babeş-Bolyai University This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.