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arXiv 1408.4501math.OA
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单侧拓扑马氏位移的强连续轨道等价

Strongly continuous orbit equivalence of one-sided topological Markov shifts

Kengo Matsumoto

摘要:

我们将在单侧拓扑马尔可夫移位中引入强连续轨道等价的概念。强连续轨道等价给出了它们的双边拓扑马尔可夫位移$(\bar{X}_A, \barσ_A)$和$(\bar{X}_B, \barσ_B)$之间的拓扑共轭.本文证明了单侧拓扑Markov位移$(X_A, σ_A)$和$(X_B, σ_B)$是强连续轨道等价的当且仅当Cuntz-Krieger代数${\mathcal{O}}_A$和${\mathcal{O}}_B$之间存在同构,保持它们的极大交换$C^*$ -子代数$C(X_A)$和$C(X_B)$,并给出上循环共轭规范作用量.给出了强连续轨道等价但不单边拓扑共轭的单边拓扑马尔可夫位移的一个例子。

英文摘要:

We will introduce a notion of strongly continuous orbit equivalence in one-sided topological Markov shifts. Strongly continuous orbit equivalence yields a topological conjugacy between their two-sided topological Markov shifts $(\bar{X}_A, \barσ_A)$ and $(\bar{X}_B, \barσ_B)$. We prove that one-sided topological Markov shifts $(X_A, σ_A)$ and $(X_B, σ_B)$ are strongly continuous orbit equivalent if and only if there exists an isomorphism bewteen the Cuntz-Krieger algebras ${\mathcal{O}}_A$ and ${\mathcal{O}}_B$ preserving their maximal commutative $C^*$-subalgebras $C(X_A)$ and $C(X_B)$ and giving cocycle conjugate gauge actions. An example of one-sided topological Markov shifts which are strongly continuous orbit equivalent but not one-sided topologically conjugate is presented.

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