Journals / Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics / 1982 / Cilt: 31 #74354
Radii of Valence of Certain Analytic Functions with Negative Coefficients
- Pages
- 146–153
- DOI
- —
Abstract
In this paper we determine the radii of p-valence of the function F(z) defined by F (z) = (1-X)f(z) H------ ^ - z f '( z ) , z e D where D = jz: |z | < 1J, X > 0 and the function f (z) belongs to certain subclasses of analytic p-valent functions with negative coefficients.