“…For definitions and detailed account of results see [Nadler, 1995]. Problems such as periodic structure using methods from combinatorial dynamics have been studied on circles, trees and finite graphs (see [Alsedà et al, 2000]), as well as on centers and depth of centers [Ye, 1993, Kato, 1995, Kato, 1998, Efremova & Makhrova, 2003] on trees, graphs and dendrites, and on the structure of ω-limit sets [Kocan et al, 2010, Balibrea & García Guirao, 2005, in particular, ω-limit sets on hereditarily locally connected continua [Spitalský, 2008], etc.…”