Estimates of initial coefficients for certain subclasses of bi-univalent functions involving quasi-subordination
نویسنده
چکیده
The object of the present paper is to introduce and investigate new subclasses of the function class Σ of bi-univalent functions defined in the open unit disk U, involving quasi subordination. The coefficients estimate |a2| and |a3| for functions in these new subclasses are also obtained. c ©2017 All rights reserved.
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