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Superattracting fixed points of quasiregular mappings

Published online by Cambridge University Press:  10 November 2014

ALASTAIR FLETCHER  and
DANIEL A. NICKS
ALASTAIR FLETCHER
Affiliation:
Department of Mathematical Sciences, Northern Illinois University, DeKalb, IL 60115-2888, USA email fletcher@math.niu.edu
DANIEL A. NICKS
Affiliation:
School of Mathematical Sciences, University of Nottingham, Nottingham NG7 2RD, UK email Dan.Nicks@nottingham.ac.uk
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Abstract

We investigate the rate of convergence of the iterates of an $n$-dimensional quasiregular mapping within the basin of attraction of a fixed point of high local index. A key tool is a refinement of a result that gives bounds on the distortion of the image of a small spherical shell. This result also has applications to the rate of growth of quasiregular mappings of polynomial type, and to the rate at which the iterates of such maps can escape to infinity.

Type
Research Article
Information
Ergodic Theory and Dynamical Systems , Volume 36 , Issue 3 , May 2016 , pp. 781 - 793
Copyright
© Cambridge University Press, 2014 

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