Sakar, Fethiye MügeHussain, SaqibAhmad, Ibrar2023-03-212023-03-212022Sakar, F.M., Hussain, S. ve Ahmad, I. (2022). Application of Gegenbauer polynomials for biunivalent functions defined by subordination. Turkish Journal of Mathematics, 46(2), 1089-1098.1300-00981303-6149https://journals.tubitak.gov.tr/math/vol46/iss3/29/https://hdl.handle.net/11468/11460https://search.trdizin.gov.tr/yayin/detay/535105We present and investigate a new subclass of biunivalent functions by applying Gegenbouer polynomials in this paper. Also, we find nonsharp estimates on the first two coefficients vertical bar b(0)vertical bar and vertical bar b(1)vertical bar for functions belonging to this subclass. Furthermore, the Fekete-Szego inequality vertical bar b(1) - eta b(0)(2)vertical bar for this subclass is obtained. We also point out some consequences of results.eninfo:eu-repo/semantics/openAccessGegenbauer polynomialsCoefficient estimatesBiunivalent functions and subordinationApplication of Gegenbauer polynomials for biunivalent functions defined by subordinationApplication of Gegenbauer polynomials for biunivalent functions defined by subordinationArticle46310891098WOS:0007700642000292-s2.0-8512692365753510510.3906/mat-2111-42Q2Q2