2016
DOI: 10.1090/memo/1141
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Group Colorings and Bernoulli Subflows

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Cited by 29 publications
(52 citation statements)
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“…Clemens [2] showed that the topological conjugacy relation on subshifts over a finite alphabet is a universal countable Borel equivalence relation. Gao, Jackson, and Seward [11] partially analyzed the topological conjugacy relation on minimal subshifts and proved that this relation is not smooth, i.e. it is strictly more complex than the equality relation ∆ R .…”
Section: Introductionmentioning
confidence: 99%
“…Clemens [2] showed that the topological conjugacy relation on subshifts over a finite alphabet is a universal countable Borel equivalence relation. Gao, Jackson, and Seward [11] partially analyzed the topological conjugacy relation on minimal subshifts and proved that this relation is not smooth, i.e. it is strictly more complex than the equality relation ∆ R .…”
Section: Introductionmentioning
confidence: 99%
“…(However, for subshifts, there is still a group action present that can be exploited: see Section 4. ) The recent monograph of Gao, Jackson, and Seward [9] studies the complexity of topological conjugacy of free, minimal subshifts. (In fact, before their construction, it was an open problem whether such subshifts necessarily exist for every countable G.) It follows essentially from a classical result of Curtis, Hedlund and Lyndon (see [19] or [9, Lemma 9.2.1]) that for any countable group G, topological conjugacy of G-subshifts is a countable Borel equivalence relation.…”
Section: Introductionmentioning
confidence: 99%
“…(In fact, before their construction, it was an open problem whether such subshifts necessarily exist for every countable G.) It follows essentially from a classical result of Curtis, Hedlund and Lyndon (see [19] or [9, Lemma 9.2.1]) that for any countable group G, topological conjugacy of G-subshifts is a countable Borel equivalence relation. Gao, Jackson and Seward showed [9,Corollary 1.5.4] that if G is infinite, this equivalence relation is not smooth, and that if G is locally finite, then it is hyperfinite [9,Theorem 1.5.6]. They also pose the general question [9,Problem 9.4.11] to determine the complexity of this equivalence relation for an arbitrary countable group G. This was an important motivating question for our work and in Theorem 1.2, we provide a partial answer.…”
Section: Introductionmentioning
confidence: 99%
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“…Seward and Tucker-Drob [ST16] further developed the techniques of [GJS09;GJS16] in order to establish the following very strong result: If Γ ñ X is a free Borel action of Γ on a standard Borel space X, then there exists an equivariant Borel map π : X Ñ 2 Γ such that πpXq is a free subshift [ST16, Theorem 1.1]. (Here, and in what follows, a horizontal line indicates topological closure.)…”
mentioning
confidence: 99%