preprint-author: 
A. de Carvalho, M. Lyubich and M. Martens
preprint-title: 
Renormalization in the Hénon family, I: universality but non-rigidity
preprint-abstract: 

In this paper geometric properties of infinitely renormalizable real Hénon-like maps $F$ in $\mathbb{R}^2$ are studied. It is shown that the appropriately defined renormalizations $R^n F$ converge exponentially to the one-dimensional renormalization fixed point. The convergence to one-dimensional systems is at a super-exponential rate controlled by the average Jacobian and a universal function $a(x)$. It is also shown that the attracting Cantor set of such a map has Hausdorff dimension less than 1, but contrary to the one-dimensional intuition, it is not rigid, does not lie on a smooth curve, and generically has unbounded geometry.

preprint-year: 
2005