Journal of the Ramanujan Mathematical Society

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On Certain Analytic Functions Involving Ruscheweyh Derivatives


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1 Department of Mathematics, Utkal University Bhubaneswar - 751 004, India
     

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Let f(z) = z+ a2z2+ ... be analytic in the unit disc. By using the method of differential subordinations we give criterion for a function f(z) to be in a certain class S* n (A, B).
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  • On Certain Analytic Functions Involving Ruscheweyh Derivatives

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Authors

J. Patel
Department of Mathematics, Utkal University Bhubaneswar - 751 004, India
M. Acharya
Department of Mathematics, Utkal University Bhubaneswar - 751 004, India

Abstract


Let f(z) = z+ a2z2+ ... be analytic in the unit disc. By using the method of differential subordinations we give criterion for a function f(z) to be in a certain class S* n (A, B).