Abstract
Let f f be a holomorphic function of the unit disc D , \mathbb {D}, with f ( D ) ⊂ D f(\mathbb {D})\subset \mathbb {D} and f ( 0 ) = 0 f(0)=0 . Littlewood’s generalization of Schwarz’s lemma asserts that for every w ∈ f ( D ) , w\in f(\mathbb {D}), we have | w | ≤ ∏ j | z j | , |w|\leq \prod _{j}|z_{j}|, where { z j } j \{z_{j}\}_j are the pre-images of w . w. We consider elliptically schlicht functions and we prove an analogous bound involving the elliptic capacity of the image. For these functions, we also study monotonicity theorems involving the elliptic radius and elliptic diameter.
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More From: Conformal Geometry and Dynamics of the American Mathematical Society
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