Two commuting maps without common minimal points
Tomasz Downarowicz
Colloquium Mathematicae, Tome 122 (2011), p. 205-209 / Harvested from The Polish Digital Mathematics Library

We construct an example of two commuting homeomorphisms S, T of a compact metric space X such that the union of all minimal sets for S is disjoint from the union of all minimal sets for T. In other words, there are no common minimal points. This answers negatively a question posed in [C-L]. We remark that Furstenberg proved the existence of "doubly recurrent" points (see [F]). Not only are these points recurrent under both S and T, but they recur along the same sequence of powers. Our example shows that nothing similar holds if recurrence is replaced by the stronger notion of uniform recurrence.

Publié le : 2011-01-01
EUDML-ID : urn:eudml:doc:284111
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     author = {Tomasz Downarowicz},
     title = {Two commuting maps without common minimal points},
     journal = {Colloquium Mathematicae},
     volume = {122},
     year = {2011},
     pages = {205-209},
     zbl = {1228.37011},
     language = {en},
     url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm123-2-4}
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Tomasz Downarowicz. Two commuting maps without common minimal points. Colloquium Mathematicae, Tome 122 (2011) pp. 205-209. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm123-2-4/