Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-24T17:07:12.875Z Has data issue: false hasContentIssue false

On intrinsic ergodicity of factors of $\mathbb{Z}^{d}$ subshifts

Published online by Cambridge University Press:  06 October 2015

KEVIN MCGOFF
Affiliation:
Department of Mathematics, Duke University, Durham, NC 27708-0320, USA email [email protected]
RONNIE PAVLOV
Affiliation:
Department of Mathematics, University of Denver, 2280 S. Vine Street, Denver, CO 80208, USA email [email protected]

Abstract

It is well known that any $\mathbb{Z}$ subshift with the specification property has the property that every factor is intrinsically ergodic, i.e. every factor has a unique factor of maximal entropy. In recent work, other $\mathbb{Z}$ subshifts have been shown to possess this property as well, including $\unicode[STIX]{x1D6FD}$-shifts and a class of $S$-gap shifts. We give two results that show that the situation for $\mathbb{Z}^{d}$ subshifts with $d>1$ is quite different. First, for any $d>1$, we show that any $\mathbb{Z}^{d}$ subshift possessing a certain mixing property must have a factor with positive entropy which is not intrinsically ergodic. In particular, this shows that for $d>1$, $\mathbb{Z}^{d}$ subshifts with specification cannot have all factors intrinsically ergodic. We also give an example of a $\mathbb{Z}^{2}$ shift of finite type, introduced by Hochman, which is not even topologically mixing, but for which every positive-entropy subshift factor is intrinsically ergodic.

Type
Research Article
Copyright
© Cambridge University Press, 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bowen, R.. Some systems with unique equilibrium states. Math. Syst. Theory 8 (1974), 193202.Google Scholar
Boyle, M.. Open problems in symbolic dynamics. Contemp. Math. 469 (2008), 69118.CrossRefGoogle Scholar
Boyle, M., Pavlov, R. and Schraudner, M.. Multidimensional sofic shifts without separation and their factors. Trans. Amer. Math. Soc. 362 (2010), 46174653.Google Scholar
Burton, R. and Steif, J.. Non-uniqueness of measures of maximal entropy for subshifts of finite type. Ergod. Th. & Dynam. Sys. 14(2) (1994), 213235.Google Scholar
Climenhaga, V. and Thompson, D.. Intrinsic ergodicity beyond specification: 𝛽-shifts, S-gap shifts, and their factors. Israel J. Math. 192(2) (2012), 785817.Google Scholar
Cover, T. and Thomas, J.. Elements of Information Theory. John Wiley and Sons, New York, 2012.Google Scholar
Hochman, M.. On the automorphism groups of multidimensional SFTs. Ergod. Th. & Dynam. Sys. 30(3) (2010), 809840.CrossRefGoogle Scholar
Lebowitz, J. and Gallavotti, G.. Phase transitions in binary lattice gases. J. Math. Phys. 12(7) (1971), 11291133.Google Scholar
Lind, D. and Marcus, B.. Introduction to Symbolic Dynamics and Coding. Cambridge University Press, Cambridge, 1995.Google Scholar
Misiurewicz, M.. A short proof of the variational principle for a ℤ+ n -action on a compact space. Astérisque 40 (1975), 147157.Google Scholar
Mozes, S.. Tilings, substitution systems and dynamical systems generated by them. J. Anal. Math. 53 (1989), 139186.CrossRefGoogle Scholar
Parry, W.. Intrinsic Markov chains. Trans. Amer. Math. Soc. 112 (1964), 5566.Google Scholar
Radin, C.. Disordered ground states of classical lattice models. Rev. Math. Phys. 3 (1991), 125135.Google Scholar
Robinson, R. M.. Undecidability and non-periodicity of tilings of the plane. Invent. Math. 12 (1971), 177209.Google Scholar
Ruelle, D.. Thermodynamic Formalism. Cambridge University Press, Cambridge, 1995.Google Scholar
Weiss, B.. Intrinsically ergodic systems. Bull. Amer. Math. Soc. 76(6) (1970), 12661269.CrossRefGoogle Scholar
Whittington, S. G. and Soteros, C. E.. Lattice animals: rigorous results and wild guesses. Disorder in Physical Systems (Oxford Science Publications) . Eds. Grimmett, G. R. and Welsh, D. J. A.. Oxford University Press, New York, 1990, pp. 323335.Google Scholar
Widom, B. and Rowlinson, J. S.. New model for the study of liquid–vapor phase transitions. J. Chem. Phys. 52 (1970), 16701684.Google Scholar