Coefficients bounds for a family of bi-univalent functions defined by Horadam polynomials
Keywords:Bi-univalent function, upper bound, Fekete–Szegö problem, Horadam polynomial, subordination
In the present paper, we determine upper bounds for the first two Taylor–Maclaurin coefficients |a2| and |a3| for a certain family of holomorphic and bi-univalent functions defined by using the Horadam polynomials. Also, we solve Fekete–Szegö problem of functions belonging to this family. Further, we point out several special cases of our results.