Journals / Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics / 1987 / Cilt: 36
Convolutions Of Certain Classes Of Analytic Functions With Negative Coefficients
- Issue
- 1987 · Cilt: 36
- Pages
- 1–1
- DOI
- —
Abstract
Let f (z) — z co S n = 2 0 and g (z) — z — 00 s b. tt=2 bn —> 0. We investi- gate some properties of h (z) — f (z} 00 s wbere f (z) and g (z) n=2 satisfy either Re(f(z) / z) Re (g(z)/ z) ly. or Re £'« a for |z| 1.