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On certain subclasses of meromorphic functions defined by convolution with positive and fixed second coefficients
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On certain subclasses of meromorphic functions defined by convolution with positive and fixed second coefficients

M. K. Aouf, A. O. Mostafa, A. Y. Lashin and B. M. Munassar
Studia Universitatis Babeș-Bolyai. Mathematica, Vol.60(3), pp.385-394
01/09/2015

Abstract

Mathematics Physical Sciences Science & Technology
In this paper we consider the class M(f, g; alpha, beta, lambda; c) of meromorphic univalent functions defined by convolution with positive coefficients and fixed second coefficients. We obtained coefficient inequalities, distortion theorems, closure theorems, the radii of meromorphic starlikeness, and convexity for functions of this class.

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