A new criterion for $p$-valent functions

R. M. Goel, N. S. Sohi
1980 Proceedings of the American Mathematical Society  
In this paper we consider the classes Kn+p_x of functions/(z) -zp + ap+xzp + i + • ■ • which are regular in the unit disc E = {z: \z\ < 1} and satisfying the condition
doi:10.1090/s0002-9939-1980-0553375-4 fatcat:y2buuy7ovragplbvk5eburf2dy