The class 𝒰 of normalized analytic functions that satisfy for all z in the open unit disk is studied and sufficient conditions for an α-convex function to be in 𝒰 are given.
Edmond Aliaga. Nikola Tuneski. "Some Connections between Class 𝒰 - and α -Convex Functions." Abstr. Appl. Anal. 2014 (SI07) 1 - 4, 2014. https://doi.org/10.1155/2014/692327