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    STUDIA MATHEMATICA - Issue no. 2 / 2018  
         
  Article:   COEFFICIENT ESTIMATES AND SUBORDINATION PROPERTIES FOR CERTAIN CLASSES OF ANALYTIC FUNCTIONS OF RECIPROCAL ORDER.

Authors:  TARIQ AL-HAWARY, BASEM AREF FRASIN.
 
       
         
  Abstract:  In this work, we determine the coefficient bounds and subordination results for functions in certain subclasses of analytic functions of reciprocal order, which are introduced here by means of a Hadamard product of analytic functions. The results presented in this paper improve or generalize the recent works of other authors and also give rise to several new results.

Mathematics Subject Classification (2010): 30C45, 30C80.

Keywords: analytic function, starlike function, convex function, β-spirallike of order α, subordinating factor sequence.
 
         
     
         
         
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