Journals / Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics / 1982 / Cilt: 31
On A Libera Integral Operator for Certain Univalent Functions
- Issue
- 1982 · Cilt: 31
- Pages
- 118–121
- DOI
- —
Abstract
In this paper we study the Libera integral operatör F(z) = -----i f(t) dt for certain univa- Z J o lent functions. The results obtained are sharp and improve some known results of Goel and Sohi, and Livingston for the univalent functions having negative coefficients.