Certain new subclasses of bi-univalent function associated with bounded boundary rotation involving salagean derivative

초록

In this article, using the Salagean operator, we introduced three new subclasses of bi-univalent functions associated with bounded boundary rotation in open unit disk E. . For these new classes, we first obtain initial Taylor-Maclaurin's coefficient bounds. Furthermore, the famous Fekete-Szego inequality was also derived for these new subclass functions. Some improved results, when compared with those available in the literature, are also stated.

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