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Notes on certain classes of analytic functions with negative coefficients. (English) Zbl 0910.30007

Some new classes of analytic functions are investigated. Radii of close-to-convexity, starlikeness and convexity are obtained. This paper contains some nice results.

MSC:

30C45 Special classes of univalent and multivalent functions of one complex variable (starlike, convex, bounded rotation, etc.)
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