Digons and angular derivatives of analytic self-maps of the unit disk

Alexander Vasil'ev; Manuel D. Contreras; Santiago D\'iaz-Madrigal

arxiv: math/0701272 · v1 · pith:UAQA7MCMnew · submitted 2007-01-10 · 🧮 math.CV · math.DS

Digons and angular derivatives of analytic self-maps of the unit disk

Manuel D. Contreras , Santiago D\'iaz-Madrigal , Alexander Vasil'ev This is my paper

classification 🧮 math.CV math.DS

keywords angularderivativesdiskself-mapsunitanalyticapproachcowen

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We present a geometric approach to a well-known sharp inequality, due to Cowen and Pommerenke, about angular derivatives of general univalent self-maps of the unit disk.

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Digons and angular derivatives of analytic self-maps of the unit disk

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