Dynamics on sensitive and equicontinuous functions

Autor: Tiaoying Zeng, Tao Yu, Jie Li
Rok vydání: 2018
Předmět:
Zdroj: Topol. Methods Nonlinear Anal. 51, no. 2 (2018), 545-563
ISSN: 1230-3429
Popis: The notions of sensitive and equicontinuous functions under semigroup action are introduced and intensively studied. We show that a transitive system is sensitive if and only if it has a sensitive pair if and only if it has a sensitive function. While there exists a minimal non-weakly mixing system such that every non-constant continuous function is sensitive, and a topological dynamical system is weakly mixing if and only if it is sensitive consistently with respect to (at least) any two non-constant continuous functions. We also get a dichotomy result for minimal systems -- every continuous function is either sensitive or equicontinuous.
Databáze: OpenAIRE