Punjab University Journal of Mathematics, Vol 47, No 1 (2015)

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e−Chaotic Generalized Shift Dynamical Systems

Fatemah Ayatollah Zadeh Shirazi, Hooman Zabeti

Abstract


In the following text we prove that for bijection ϕ : N → N and discrete set {1, . . . , k} with k ≥ 2, the generalized shift dynamical system ({1, . . . , k} N, σϕ) is e−chaotic, (expansive, positively expansive) if and only if {{ϕ i (n) : i ∈ Z} : n ∈ N} is a finite partition of N (or equivalently there exists N ∈ N such that N = S {ϕ i ({1, . . . , N}) : i ∈ Z}). 

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