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arXiv · 1210.2330

Pre-Schwarzian and Schwarzian derivatives of harmonic mappings

Rodrigo Hernández·María J. Martín
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Abstract

In this paper we introduce a definition of the pre-Schwarzian and the Schwarzian derivatives of any locally univalent harmonic mapping $f$ in the complex plane without assuming any additional condition on the (second complex) dilatation $ω_f$ of $f$. Using the new definition for the Schwarzian derivative of harmonic mappings, we prove analogous theorems to those by Chuaqui, Duren, and Osgood. Also, we obtain a Becker-type criterion for the univalence of harmonic mappings.

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Rodrigo Hernández, María J. Martín. 2012-10-08. Pre-Schwarzian and Schwarzian derivatives of harmonic mappings. https://arxiv.org/abs/1210.2330

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