Some estimation about Tayler-Maclaurin coefficients of generalized subclasses of bi-univalent functions

S.A. Saleh, A.H. El-Qadeem, M.A. Mamon

In this study, two bi-univalent function subclasses are defined. The functions are defined in the open unit disc U. The main purpose is to determine some estimations on the initial Tayler-Maclaurin coefficients for functions belong to these subclasses. Finally, some earlier results are pointed out and improved. 

Tbilisi Mathematical Journal, Vol. 13(4) (2020), pp. 23-32