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On Strongly Normal Functions

Published online by Cambridge University Press:  20 November 2018

Huaihui Chen
Affiliation:
Department of Mathematics, Nanjing Normal University, Nanjing Jiangsu 210024, RR. CHINA, hhchen@njnu.fudan.edu.cn
Paul M. Gauthier
Affiliation:
Département de Mathématiques et de Statistique, Université de Montréal, Montréal Québec H3C 3J7, CANADA, gauthier@ere.umontreal.ca
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Abstract

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Loosely speaking, a function (meromorphic or harmonic) from the hyperbolic disk of the complex plane to the Riemann sphere is normal if its dilatation is bounded. We call a function strongly normal if its dilatation vanishes at the boundary. A sequential property of this class of functions is proved. Certain integral conditions, known to be sufficient for normality, are shown to be in fact sufficient for strong normality.

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Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1996