Starlikeness of the Libera transform of functions with bounded turning

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摘要

Conditions are determined for starlikeness of the Libera transform of functions with bounded turning. The results of Miller and Mocanu [S.S. Miller, P.T. Mocanu, Libera transform of functions with bounded turning, J. Math. Anal. Appl. 276 (2002) 90–97] are improved by using the theory of differential subordinations.

论文关键词：Libera integral,Differential subordination,Univalent,Starlike,Convex,Bounded turning,Strongly starlike

论文评审过程：Available online 22 April 2008.

论文官网地址：https://doi.org/10.1016/j.amc.2008.04.036