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Displaying similar documents to “Subclass of meromorphic functions with positive coefficients defined by Ruscheweyh derivative. II.”

Majorization for certain classes of meromorphic functions defined by integral operator

S. P. Goyal, Pranay Goswami (2012)

Annales Universitatis Mariae Curie-Sklodowska, sectio A – Mathematica

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Here we investigate a majorization problem involving starlike meromorphic functions of complex order belonging to a certain subclass of meromorphic univalent functions defined by an integral operator introduced recently by Lashin.

Subordination and superordination of certain linear operator on meromorphic functions

M. K. Aouf, T. M. Seoudy (2010)

Annales Universitatis Mariae Curie-Sklodowska, sectio A – Mathematica

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Using the methods of differential subordination and superordination, sufficient conditions are determined on the differential linear operator of meromorphic functions in the punctured unit disk to obtain, respectively, the best dominant and the best subordinant. New sandwich-type results are also obtained.