Normalization of bundle holomorphic contractions and applications to dynamics
Dynamical Systems
2008-02-08 v2 Complex Variables
Abstract
We establish a Poincar\'e-Dulac theorem for sequences (G_n)_n of holomorphic contractions whose differentials d_0 G_n split regularly. The resonant relations determining the normal forms hold on the moduli of the exponential rates of contraction. Our results are actually stated in the framework of bundle maps. Such sequences of holomorphic contractions appear naturally as iterated inverse branches of endomorphisms of CP(k). In this context, our normalization result allows to precisely estimate the distortions of ellipsoids along typical orbits. As an application, we show how the Lyapunov exponents of the equilibrium measure are approximated in terms of the multipliers of the repulsive cycles.
Cite
@article{arxiv.0705.2649,
title = {Normalization of bundle holomorphic contractions and applications to dynamics},
author = {F. Berteloot and C. Dupont and L. Molino},
journal= {arXiv preprint arXiv:0705.2649},
year = {2008}
}