Boletim da Sociedade Paranaense de Matemática (Feb 2022)
Fekete-Szegö problem for a subclass of analytic functions associated with Chebyshev polynomials
Abstract
In this paper, we obtain initial coefficients |a2| and |a3| for a certain subclass by means of Chebyshev polynomials expansions of analytic functions in D. Also, we solve Fekete-Szegö problem for functions in this subclass.