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Inverse limits which are the pseudoarc. (English) Zbl 0991.54048

Let \(C_s(I,I)\) denote the space of surjective continuous maps of the compact interval \(I\). For a function \(f\) in this class, let \((\widehat{I}, \widehat{f})\) denote the inverse limit with respect to the countable sequence of maps \(f_n=f\) \((n\geq 1)\). It is shown that the set of \((\widehat{I}, \widehat{f})\), which are homeomorphic to the pseudoarc [B. Knaster, Fundam. Math. 3, 247-286 (1922; JFM 48.0212.01); J. A. Kennedy, Lect. Notes Pure Appl. Math. 170, 103-126 (1995; Zbl 0828.54026)], is nowhere dense in \(C_s(I,I)\). Furthermore, it is shown that \((\widehat{I}, \widehat{f})\) is not homeomorphic as above, if \(f\) has a periodic point, not of odd period.

MSC:

54H20 Topological dynamics (MSC2010)
54B35 Spectra in general topology
37B40 Topological entropy
37B45 Continua theory in dynamics
37E05 Dynamical systems involving maps of the interval
54C35 Function spaces in general topology
54C70 Entropy in general topology