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Differential sandwich theorems for analytic functions defined by some linear operatorsDOI: 10.2478/v10062-008-0002-6 Keywords: Analytic functions, differential subordination, superordination, sandwich theorems, Dziok-Srivastava operator Abstract: In this investigation, we obtain some applications of first order differential subordination and superordination results involving Dziok-Srivastava operator and other linear operators for certain normalized analytic functions. Some of our results improve previous results.
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