Sakar, F. MugeDogan, Ertugrul2024-04-242024-04-2420200976-5905https://doi.org/10.26713/cma.v11i1.1331https://hdl.handle.net/11468/19000In this paper, we firstly, introduced the subclass R-Sigma(tau, alpha,gamma, t) satisfying subordinate conditions. Subsequently, considering this defined subclass, initial coefficient estimations are established using by Chebyshev polynomials expansions, and Fekete-Szego inequalities are also derived for functions belonging to the said subclass. Furthermore, Some relevant consequences of these results are also discussed.eninfo:eu-repo/semantics/closedAccessInitial Coefficients ProblemBi-Univalent FunctionChebyshev PolinomialsFekete-Szego ProblemOn Initial Chebyshev Polynomial Coefficient Problem for Certain Subclass of Bi-Univalent FunctionsOn Initial Chebyshev Polynomial Coefficient Problem for Certain Subclass of Bi-Univalent FunctionsArticle1115764WOS:00053183030000510.26713/cma.v11i1.1331N/A