Sakar, F. MügeGüney, H. Özlem2021-10-252021-10-252019-02-01https://doi.org/10.31801/cfsuasmas.443600http://hdl.handle.net/20.500.12575/75728In this study,a new class C_{Σ}^{p,q}(α) of analytic and bi-concave functions were presented in the open unit disc. The coefficients estimates on the first two Taylor-Maclaurin coefficients |a₂| and |a₃| were found for functions belonging to this class.enAnalyticbi-concave functionsAnalytic functionArticle68153602618-6470