Orhan, HalitCaglar, MuratArikan, Hava2026-03-262026-03-2620250354-518010.2298/FIL2518215O2-s2.0-105018701149https://doi.org/10.2298/FIL2518215Ohttps://hdl.handle.net/20.500.14901/2622In this research, we present and study a new subclass of bi-univalent functions related to the Krawtchouk polynomials that meet subordination requirements seen in the open unit disk, a symmetric domain. We derive estimates for the Fekete-Szegoinequality |a(3)-gamma a(2)(2)| and the Taylor-Maclaurin coeffcients |a(2)| , |a(3)| for this new subclass.eninfo:eu-repo/semantics/closedAccessAnalytic FunctionsBi-Univalent FunctionsSubordinationKrawtchouk PolynomialFekete-Szego ProblemArticle