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Search: MSC category 37B10 ( Symbolic dynamics [See also 37Cxx, 37Dxx] )

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1. CMB 2016 (vol 60 pp. 411)

Stoyanov, Luchezar
 On Gibbs Measures and Spectra of Ruelle Transfer Operators We prove a comprehensive version of the Ruelle-Perron-Frobenius Theorem with explicit estimates of the spectral radius of the Ruelle transfer operator and various other quantities related to spectral properties of this operator. The novelty here is that the HÃ¶lder constant of the function generating the operator appears only polynomially, not exponentially as in previous known estimates. Keywords:subshift of finite type, Ruelle transfer operator, Gibbs measureCategories:37A05, 37B10

2. CMB 2008 (vol 51 pp. 545)

Ionescu, Marius; Watatani, Yasuo
 $C^{\ast}$-Algebras Associated with Mauldin--Williams Graphs A Mauldin--Williams graph $\mathcal{M}$ is a generalization of an iterated function system by a directed graph. Its invariant set $K$ plays the role of the self-similar set. We associate a $C^{*}$-algebra $\mathcal{O}_{\mathcal{M}}(K)$ with a Mauldin--Williams graph $\mathcal{M}$ and the invariant set $K$, laying emphasis on the singular points. We assume that the underlying graph $G$ has no sinks and no sources. If $\mathcal{M}$ satisfies the open set condition in $K$, and $G$ is irreducible and is not a cyclic permutation, then the associated $C^{*}$-algebra $\mathcal{O}_{\mathcal{M}}(K)$ is simple and purely infinite. We calculate the $K$-groups for some examples including the inflation rule of the Penrose tilings. Categories:46L35, 46L08, 46L80, 37B10

3. CMB 2004 (vol 47 pp. 168)

Baake, Michael; Sing, Bernd
 Kolakoski-$(3,1)$ Is a (Deformed) Model Set Unlike the (classical) Kolakoski sequence on the alphabet $\{1,2\}$, its analogue on $\{1,3\}$ can be related to a primitive substitution rule. Using this connection, we prove that the corresponding bi-infinite fixed point is a regular generic model set and thus has a pure point diffraction spectrum. The Kolakoski-$(3,1)$ sequence is then obtained as a deformation, without losing the pure point diffraction property. Categories:52C23, 37B10, 28A80, 43A25

4. CMB 2002 (vol 45 pp. 697)

Sirvent, V. F.; Solomyak, B.
 Pure Discrete Spectrum for One-dimensional Substitution Systems of Pisot Type We consider two dynamical systems associated with a substitution of Pisot type: the usual $\mathbb{Z}$-action on a sequence space, and the $\mathbb{R}$-action, which can be defined as a tiling dynamical system or as a suspension flow. We describe procedures for checking when these systems have pure discrete spectrum (the balanced pairs algorithm'' and the overlap algorithm'') and study the relation between them. In particular, we show that pure discrete spectrum for the $\mathbb{R}$-action implies pure discrete spectrum for the $\mathbb{Z}$-action, and obtain a partial result in the other direction. As a corollary, we prove pure discrete spectrum for every $\mathbb{R}$-action associated with a two-symbol substitution of Pisot type (this is conjectured for an arbitrary number of symbols). Categories:37A30, 52C23, 37B10
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