Argument property for certain analytic functions
Summary: Let \(P\) be the class of functions \(p(z)\) of the form \(p(z) = 1 + \sum^\infty_{n=1} c_n z^n\) which are analytic in the open unit disk \(U = \{z : |z| < 1\}\). The object of the present paper is to derive certain argument inequalities of analytic functions \(p(z)\) in \(P\).
scientific article; zbMATH DE number 5994547