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Differential superordination defined by Sălăgean operator. (English) Zbl 1092.30042
Summary: By using the Sălăgean operator $$D^n f$$, we introduce a class of holomorphic functions denoted by $$S(\alpha)$$ and we obtain some superordinations results related to this class.

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