Güney, Özlem H.Murugusundaramoorthy, G.Sokol, Janusz2021-11-052021-11-052019-08-01https://doi.org/10.31801/cfsuasmas.505287http://hdl.handle.net/20.500.12575/75932In this paper, we introduce and investigate new subclasses of bi-univalent functions related to k-Fibonacci numbers. Furthermore, we nd estimates of first two coecients of functions in these classes. Also, we obtain the Fekete-Szego inequalities for these function classes.enAnalytic functionsBi-univalentk-fibonacci numbersArticle682190919212618-6470