New subclasses of analytic and M-fold symmetric bi-univalent functions defined by differential operator

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New subclasses of analytic and M-fold symmetric bi-univalent functions defined by differential operator

By using generalized differential operator, we introduce two new subclasses of analytic and m-fold symmetric bi-univalent functions in the open unit disk .U We also find coefficient estimates of 2a and 3a for these new subclasses.

Bibliographic Details
Main Authors:	Ramadan, Salma F., Maslina Darus
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13871/ http://journalarticle.ukm.my/13871/1/jqma-15-2-paper4.pdf

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