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2017, 37(8): 4543-4563. doi: 10.3934/dcds.2017194

## Measurable sensitivity via Furstenberg families

 Department of Mathematics University of Science and Technology of China Hefei, Anhui 230026, China

Tao Yu, E-mail address: ytnuo@mail.ustc.edu.cn

Received  September 2016 Revised  March 2017 Published  April 2017

Fund Project: The author was supported by NNSF of China (11371339,11431012,11571335)

Let $(X, T)$ be a topological dynamical system, and $\mu$ be a $T$-invariant Borel probability measure on $X$. Let $\mathcal{F}$ be a family of subsets of $\mathbb{Z}_+$. We introduce notions of $\mathcal{F}$-sensitivity for $\mu$ and block $\mathcal{F}$-sensitivity for $\mu$.Let $\mathcal{F}_t$ (resp. $\mathcal{F}_{ip}$) be the families consisting of thick sets (resp. IP-sets). The following Auslander-Yorke's type dichotomy theorems are obtained:(1) a minimal system is either $\mathcal{F}_{t}$-sensitive for $\mu$ or an almost one-to-one extension of its maximal equicontinous factor.(2) a minimal system is either block $\mathcal{F}_{t}$-sensitive for $\mu$ or a proximal extension of its maximal equicontinous factor.(3) a minimal system is either block $\mathcal{F}_{ip}$-sensitive for $\mu$ or an almost one-to-one extension of its $\infty$-step nilfactor.We also introduce the notion of topological $l$-sensitivity, and construct a minimal system which is $l$-sensitive but not $(l+1)$-sensitive for $l\in\mathbb{N}$.
Citation: Tao Yu. Measurable sensitivity via Furstenberg families. Discrete & Continuous Dynamical Systems - A, 2017, 37 (8) : 4543-4563. doi: 10.3934/dcds.2017194
##### References:
 [1] C. Abraham, G. Biau, B. Cadre, Chaotic properties of mappings on a probability space, J. Math. Anal. Appl., 266 (2002), 420-431. [2] E. Akin, S. Kolyada, Li-Yorke sensitivity, Nonlinearity, 16 (2003), 1421-1433. [3] J. Auslander, Minimal Flows and Their Extensions, North-Holland Mathematics Studies 153, Elsevier, 1988. [4] J. Auslander, J. A. Yorke, Interval maps, factors of maps, and chaos, Tôhoku Math. J. (2), 32 (1980), 177-188. [5] V. Bergelson, Ultrafilters, IP sets, dynamics, and combinatorial number theory, Ultrafilters Across Mathematics, 23-47, Contemp. Math. , 530, Amer. Math. Soc. , Providence, RI, 2010. [6] B. Cadre, P. Jacob, On pairwise sensitivity, J. Math. Anal. Appl., 309 (2005), 375-382. [7] P. Dong, S. Donoso, A. Maass, S. Shao, X. Ye, Infinite-step nilsystems, independence and complexity, Ergodic Theory Dynam. Systems, 33 (2013), 118-143. [8] T. Downarowicz, E. Glasner, Isomorphic extension and applications, Topol. Methods Nonlinear Anal., 48 (2016), 321-338. [9] T. Downarowicz, S. Kasjan, Odometers and toeplitz systems revisited in the context of sarnak's conjecture, Studia Math., 229 (2015), 45-72. [10] H. Furstenberg, Recurrence in Ergodic Theory and Combinatorial Number Theory, M. B. Porter Lectures. Princeton University Press, Princeton, N. J. , 1981. [11] H. Furstenberg, B. Weiss, On almost 1-1 extensions, Israel J. Math., 65 (1989), 311-322. [12] F. García-Ramos, Weak Forms of Topological and Measure Theoretical Equicontinuity: Relationships with Discrete Spectrum and Sequence Entropy, Ergodic Theory Dynam. Systems, to appear. [13] J. Gillis, Notes on a property of measurable sets, J. London Math. Soc., 11 (1936), 139-141. [14] E. Glasner, Y. Gutman and X. Ye, Higher order regionally proximal equivalence relations for general group actions, preprint. [15] I. Grigoriev, M. C. Iordan, A. Lubin, N. Ince, C. E. Silva, On μ-compatible metrics and measurable sensitivity, Colloq. Math., 126 (2012), 53-72. [16] J. Hallett, L. Manuelli, C. E. Silva, On Li-Yorke measurable sensitivity, Proc. Amer. Math. Soc., 143 (2015), 2411-2426. [17] B. Host, B. Kra, A. Maass, Nilsequences and a structure theory for topological dynamical systems, Adv. Math., 224 (2010), 103-129. [18] W. Huang, D. Khilko, S. Kolyada, G. H. Zhang, Dynamical compactness and sensitivity, J. Differential Equations, 260 (2016), 6800-6827. [19] W. Huang, S. Kolyada and G. H. Zhang, Analogues of Auslander-Yorke theorems for multisensitivity, Ergodic Theory Dynam. Systems, to appear. [20] W. Huang, P. Lu, X. Ye, Measure-theoretical sensitivity and equicontinuity, Israel J. Math., 183 (2011), 233-283. [21] W. Huang, S. Shao, X. Ye, Nil Bohr-sets and almost automorphy of higher order, Mem. Amer. Math. Soc., 241 (2016), v+83 pp. [22] W. Huang, X. Ye, Topological complexity, return times and weak disjointness, Ergodic Theory Dynam. Systems, 24 (2004), 825-846. [23] J. James, T. Koberda, K. Lindsey, C. E. Silva, P. Speh, Measurable sensitivity, Proc. Amer. Math. Soc., 136 (2008), 3549-3559. [24] J. Li, Dynamical characterization of C-sets and its application, Fund. Math., 216 (2012), 259-286. [25] J. Li, Measure-theoretic sensitivity via finite partitions, Nonlinearity, 29 (2016), 2133-2144. [26] J. Li, X. Ye, Recent development of chaos theory in topological dynamics, Acta Math. Sin. (Engl. Ser.), 32 (2016), 83-114. [27] R. Li and Y. Shi, Stronger forms of sensitivity for measure-preserving maps and semiflows on probability spaces, Abstr. Appl. Anal. , Art. , (2014), ID 769523, 10 pages. [28] H. Liu, L. Liao and L. Wang, Thickly syndetical sensitivity of topological dynamical system, Discrete Dyn. Nat. Soc. , Art. , (2014), ID 583431, 4 pages. [29] T. K. S. Moothathu, Stronger forms of sensitivity for dynamical systems, Nonlinearity, 20 (2007), 2115-2126. [30] D. Ruelle, Dynamical systems with turbulent behavior, Mathematical problems in theoretical physics (Proc. Internat. Conf. , Univ. Rome, Rome, 1977), Lecture Notes in Phys. , vol. 80, Springer, Berlin-New York, 1978, pp. 341-360. [31] S. Shao, X. Ye, Regionally proximal relation of order d is an equivalence one for minimal systems and a combinatorial consequence, Adv. Math., 231 (2012), 1786-1817. [32] H. Wu, H. Wang, Measure-theoretical sensitivity and scrambled sets via Furstenberg families, J. Dyn. Syst. Geom. Theor., 7 (2009), 1-12. [33] X. Ye, T. Yu, Sensitivity, proximal extension and higher order almost automorphy, Trans. Amer. Math. Soc., 13 (2001). [34] X. Ye, R. Zhang, On sensitive sets in topological dynamics, Nonlinearity, 21 (2008), 1601-1620. [35] R. Zhang, On sensitivity, Sequence Entropy and Related Problems in Dynamical Systems, Ph. D thesis, University of Science and Technology of China, 2008.

show all references

##### References:
 [1] C. Abraham, G. Biau, B. Cadre, Chaotic properties of mappings on a probability space, J. Math. Anal. Appl., 266 (2002), 420-431. [2] E. Akin, S. Kolyada, Li-Yorke sensitivity, Nonlinearity, 16 (2003), 1421-1433. [3] J. Auslander, Minimal Flows and Their Extensions, North-Holland Mathematics Studies 153, Elsevier, 1988. [4] J. Auslander, J. A. Yorke, Interval maps, factors of maps, and chaos, Tôhoku Math. J. (2), 32 (1980), 177-188. [5] V. Bergelson, Ultrafilters, IP sets, dynamics, and combinatorial number theory, Ultrafilters Across Mathematics, 23-47, Contemp. Math. , 530, Amer. Math. Soc. , Providence, RI, 2010. [6] B. Cadre, P. Jacob, On pairwise sensitivity, J. Math. Anal. Appl., 309 (2005), 375-382. [7] P. Dong, S. Donoso, A. Maass, S. Shao, X. Ye, Infinite-step nilsystems, independence and complexity, Ergodic Theory Dynam. Systems, 33 (2013), 118-143. [8] T. Downarowicz, E. Glasner, Isomorphic extension and applications, Topol. Methods Nonlinear Anal., 48 (2016), 321-338. [9] T. Downarowicz, S. Kasjan, Odometers and toeplitz systems revisited in the context of sarnak's conjecture, Studia Math., 229 (2015), 45-72. [10] H. Furstenberg, Recurrence in Ergodic Theory and Combinatorial Number Theory, M. B. Porter Lectures. Princeton University Press, Princeton, N. J. , 1981. [11] H. Furstenberg, B. Weiss, On almost 1-1 extensions, Israel J. Math., 65 (1989), 311-322. [12] F. García-Ramos, Weak Forms of Topological and Measure Theoretical Equicontinuity: Relationships with Discrete Spectrum and Sequence Entropy, Ergodic Theory Dynam. Systems, to appear. [13] J. Gillis, Notes on a property of measurable sets, J. London Math. Soc., 11 (1936), 139-141. [14] E. Glasner, Y. Gutman and X. Ye, Higher order regionally proximal equivalence relations for general group actions, preprint. [15] I. Grigoriev, M. C. Iordan, A. Lubin, N. Ince, C. E. Silva, On μ-compatible metrics and measurable sensitivity, Colloq. Math., 126 (2012), 53-72. [16] J. Hallett, L. Manuelli, C. E. Silva, On Li-Yorke measurable sensitivity, Proc. Amer. Math. Soc., 143 (2015), 2411-2426. [17] B. Host, B. Kra, A. Maass, Nilsequences and a structure theory for topological dynamical systems, Adv. Math., 224 (2010), 103-129. [18] W. Huang, D. Khilko, S. Kolyada, G. H. Zhang, Dynamical compactness and sensitivity, J. Differential Equations, 260 (2016), 6800-6827. [19] W. Huang, S. Kolyada and G. H. Zhang, Analogues of Auslander-Yorke theorems for multisensitivity, Ergodic Theory Dynam. Systems, to appear. [20] W. Huang, P. Lu, X. Ye, Measure-theoretical sensitivity and equicontinuity, Israel J. Math., 183 (2011), 233-283. [21] W. Huang, S. Shao, X. Ye, Nil Bohr-sets and almost automorphy of higher order, Mem. Amer. Math. Soc., 241 (2016), v+83 pp. [22] W. Huang, X. Ye, Topological complexity, return times and weak disjointness, Ergodic Theory Dynam. Systems, 24 (2004), 825-846. [23] J. James, T. Koberda, K. Lindsey, C. E. Silva, P. Speh, Measurable sensitivity, Proc. Amer. Math. Soc., 136 (2008), 3549-3559. [24] J. Li, Dynamical characterization of C-sets and its application, Fund. Math., 216 (2012), 259-286. [25] J. Li, Measure-theoretic sensitivity via finite partitions, Nonlinearity, 29 (2016), 2133-2144. [26] J. Li, X. Ye, Recent development of chaos theory in topological dynamics, Acta Math. Sin. (Engl. Ser.), 32 (2016), 83-114. [27] R. Li and Y. Shi, Stronger forms of sensitivity for measure-preserving maps and semiflows on probability spaces, Abstr. Appl. Anal. , Art. , (2014), ID 769523, 10 pages. [28] H. Liu, L. Liao and L. Wang, Thickly syndetical sensitivity of topological dynamical system, Discrete Dyn. Nat. Soc. , Art. , (2014), ID 583431, 4 pages. [29] T. K. S. Moothathu, Stronger forms of sensitivity for dynamical systems, Nonlinearity, 20 (2007), 2115-2126. [30] D. Ruelle, Dynamical systems with turbulent behavior, Mathematical problems in theoretical physics (Proc. Internat. Conf. , Univ. Rome, Rome, 1977), Lecture Notes in Phys. , vol. 80, Springer, Berlin-New York, 1978, pp. 341-360. [31] S. Shao, X. Ye, Regionally proximal relation of order d is an equivalence one for minimal systems and a combinatorial consequence, Adv. Math., 231 (2012), 1786-1817. [32] H. Wu, H. Wang, Measure-theoretical sensitivity and scrambled sets via Furstenberg families, J. Dyn. Syst. Geom. Theor., 7 (2009), 1-12. [33] X. Ye, T. Yu, Sensitivity, proximal extension and higher order almost automorphy, Trans. Amer. Math. Soc., 13 (2001). [34] X. Ye, R. Zhang, On sensitive sets in topological dynamics, Nonlinearity, 21 (2008), 1601-1620. [35] R. Zhang, On sensitivity, Sequence Entropy and Related Problems in Dynamical Systems, Ph. D thesis, University of Science and Technology of China, 2008.
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