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Abstract: In this paper we introduce and study two new subclasses \Sigma {\lambda\mump}\alpha,\beta$ and $\Sigma^{+} {\lambda\mu mp}\alpha,\beta$ ofmeromorphically multivalent functions which are defined by means of a newdifferential operator. Some results connected to subordination properties,coefficient estimates, convolution properties, integral representation,distortion theorems are obtained. We also extend the familiar concept of $%n,\delta-$neighborhoods of analytic functions to these subclasses ofmeromorphically multivalent functions.



Autor: Halit Orhan, Dorina Raducanu, Erhan Deniz

Fuente: https://arxiv.org/







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