THE REGION OF VALUES OF THE SYSTEM {f(z_1), f(z_2), f(z_3)} ON THE CLASS OF TYPICALLY REAL FUNCTIONS

摘要

The paper determines the region of values of the system occurring in the title on the class T of functions f(z) = z+··· regular in the unit disk and satisfying the condition Im f(z)·Im z > 0 for Im z ≠ 0.