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Strong Approximations of Shifts and the Characteristic Measures Problem by Cyr, Van; Kra, Bryna; Petite, Samuel is a scholarly article available to read on EtoBox.

What is Strong Approximations of Shifts and the Characteristic Measures Problem about?

Every symbolic system supports a Borel measure that is invariant under the shift, but it is not known if every such systems supports a measure that is invariant under all of its automorphisms; known as a characteristic measure. We give sufficient conditions to find a characteristic measure, additionally showing when it can be taken to be a measure of maximal entropy. The class of systems to which these sufficient conditions apply is large, containing a dense $G_{\delta}$ set in the space of all shifts on a given alphabet, and is also large in the sense that it is closed under taking factors. We also investigate natural systems to which these sufficient conditions apply.

Author

Cyr, Van; Kra, Bryna; Petite, Samuel

Published

2023

Language

EN