Sandwich theorems for higher-order derivatives of $p$-valent functions defined by certain linear operator
Bull. Korean Math. Soc. 2011 Vol. 48, No. 3, 627-636
Published online May 1, 2011
Mohamed K. Aouf and Tamer M. Seoudy
Mansoura University, Fayoum University
Abstract : In this paper, we obtain some applications of first order differential subordination and superordination results for higher-order derivatives of $p$-valent functions involving certain linear operator. Some of our results improve and generalize previously known results.
Keywords : analytic function, Hadamard product, differential subordination, superordination, linear operator
MSC numbers : 30C45
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