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    STUDIA MATHEMATICA - Issue no. 1 / 2019  
         
  Article:   SUBCLASSES OF ANALYTIC FUNCTIONS OF COMPLEX ORDER DEFINED BY q-DERIVATIVE OPERATOR.

Authors:  REKHA SRIVASTAVA, HANAA M. ZAYED.
 
       
         
  Abstract:  Using the q-derivative operator in conjunction with the principle of
subordination between analytic functions, we introduce two subclasses of analytic functions in the open unit disk U. We investigate convolution properties and coefficient estimates for these subclasses.

Mathematics Subject Classi fication (2010): 30C45, 30C50.
Keywords:
Analytic functions, univalent functions, Hadamard product (or con-volution), subordination between analytic functions, q-derivative operator.
 
         
     
         
         
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