English

Equilibrium measures on saddle sets of holomorphic maps on P^2

Dynamical Systems 2012-03-15 v1 Complex Variables

Abstract

We consider the case of hyperbolic basic sets Λ\Lambda of saddle type for holomorphic maps f:P2CP2Cf: \mathbb P^2\mathbb C \to \mathbb P^2\mathbb C. We study equilibrium measures μϕ\mu_\phi associated to a class of H\"older potentials ϕ\phi on Λ\Lambda, and find the measures μϕ\mu_\phi of iterates of arbitrary Bowen balls. Estimates for the pointwise dimension δμϕ\delta_{\mu_\phi} of μϕ\mu_\phi that involve Lyapunov exponents and a correction term are found, and also a formula for the Hausdorff dimension of μϕ\mu_\phi in the case when the preimage counting function is constant on Λ\Lambda. For terminal/minimal saddle sets we prove that an invariant measure ν\nu obtained as a wedge product of two positive closed currents, is in fact the measure of maximal entropy for the \textit{restriction} fΛf|_\Lambda. This allows then to obtain formulas for the measure ν\nu of arbitrary balls, and to give a formula for the pointwise dimension and the Hausdorff dimension of ν\nu.

Keywords

Cite

@article{arxiv.1203.3145,
  title  = {Equilibrium measures on saddle sets of holomorphic maps on P^2},
  author = {John Erik Fornaess and Eugen Mihailescu},
  journal= {arXiv preprint arXiv:1203.3145},
  year   = {2012}
}