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    STUDIA MATHEMATICA - Issue no. 1 / 2020  
         
  Article:   NEW SUBCLASSES OF BI-UNIVALENT FUNCTIONS DEFINED BY MULTIPLIER TRANSFORMATION.

Authors:  SAURABH PORWAL, SHIVAM KUMAR.
 
       
         
  Abstract:  
DOI: 10.24193/subbmath.2020.1.04

Published Online: 2020-03-06
Published Print: 2020-03-30
pp. 47-55
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ABSTRACT: In the present paper, we introduce new subclasses of the function class $sum$ of bi-univalent functions by using multiplier transformation. Furthermore, we obtain estimates on the coefficients $|a_2|, |a_3|~ ext{and}~|a_4|$ for functions of this class. Relevant connections of the results presented here with various well-known results are briefly indicated.

Key words: Analytic, univalent, Bi-univalent functions, Multiplier transformation.
 
         
     
         
         
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