Definition:Omega-Limit Point

Definition
Let $\struct {X, f}$ be a topological dynamical system.

Let $x \in X$.

Then $y \in X$ is a $\omega$-limit point of $x$ $\exists \sequence {n_k} \subseteq \N$ such that:
 * $\ds \lim_{k \mathop \to \infty} n_k = +\infty$

and:
 * $\ds y = \lim_{k \mathop \to \infty} \map {f^{n_k} } x$