On Critical Point for Two Dimensional Holomorphics Systems

Let $f:M\to M$ be a biholomorphisms on two–dimensional a complex manifold, and let $X\subseteq M$ be a compact $f$–invariant set such that $f\mathrm{\mid }X$ is asymptotically dissipative and without sinks periodic points. We introduce a solely dynamical obstruction to dominated splitting, namely critical point. Critical point is a dynamical object and capture many of the dynamical properties of their one–dimensional counterpart.