Double integral starlike operators. (English) Zbl 1156.30014

This paper gives the conditions on the kernel function so that the double integral becomes a starlike function.


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
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