Homeomorfismos 2-expansivos em superfícies

Abstract

The goal of this work is to classify 2-expansive homeomorphisms on surfaces. More specifically, the main objective is to show that given $f:M\rightarrow{M}$ a 2-expansive homeomorphism defined on a compact surface $M$ with $\Omega(f)=M $, it implies that $f$ is an expansive homeomorphism. Combining this result with the classification of expansives on surfaces made by Lewowicz, we will obtain the classification of 2-expansive homeomorphisms on surfaces.