On functions with the derivative satisfying a geometric condition
暂无分享,去创建一个
In this paper, we prove some properties of the analytic functions whose derivatives takes values outside of a parabola. Some applications are given.
[1] R. J. Libera. Some classes of regular univalent functions , 1965 .
[2] L. Brickman,et al. Convex hulls of some classical families of univalent functions , 1971 .
[3] Sanford S. Miller,et al. Marx-Strohhäcker differential subordination systems , 1987 .
[4] I. S. Jack. Functions Starlike and Convex of Order α , 1971 .