On sufficient condition to be in a certain subclass of starlike functions defined by subordination

  • Janusz Sokól
  • Published 2007 in Applied Mathematics and Computation


An interesting criterion was given by Tuneski [N. Tuneski, On the quotient of the representations of convexity and starlikeness, Math. Nachr. 248–249 (2003) 200–203] for the analytic functions to be in the class S 1⁄21þAz 1þBz and its subclasses, where 1 6 B < A 6 1. This result is an extension of an earlier result of Silverman [H. Silverman, Convex and… (More)
DOI: 10.1016/j.amc.2007.01.034


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