## A class of holomorphic functions. II.(English)Zbl 1060.30021

By using the operator $$D^n f(z)$$, $$z\in U$$, we introduce a new class of holomorphic functions and obtain subordination results.

### MSC:

 30C45 Special classes of univalent and multivalent functions of one complex variable (starlike, convex, bounded rotation, etc.) 30C80 Maximum principle, Schwarz’s lemma, Lindelöf principle, analogues and generalizations; subordination