Coefficient estimates for families of bi-univalent functions defined by Ruscheweyh derivative operator

Abstract

The main purpose of this manuscript is to find upper bounds for the second and third Taylor-Maclaurin coefficients for two families of holomorphic and bi-univalent functions associated with Ruscheweyh derivative operator. Further, we point out certain special cases for our results.

Keywords

• holomorphic function
• bi-univalent function
• coefficient estimates
• ruscheweyh derivative operator