Abstract: We establish a new characterization for a conformal mapping of the unit disk $\mathbb{D}$ to be convex, and identify the mappings onto a half-plane or a parallel strip as extremals. We also show that, with these exceptions, the level sets of $\lambda$ of the Poincar\'e metric $\lambda|dw|$ of a convex domain are strictly convex.
Publication Year: 2018
Publication Date: 2018-06-20
Language: en
Type: preprint
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