Fekete-Szegö inequality of bi-starlike and bi-convex functions of order $b$ associated with symmetric $q$-derivative in conic domains

Abstract

In this paper, two new subclasses of bi-univalent functions related to conic domains are defined by making use of symmetric $q$-differential operator. The initial bounds for Fekete-Szegö inequality for the functions $f$ in these classes are estimated.

10 pages