Spectral theory of $\mathbb{Z}^{d}$ substitutions
Spectral theory of $\mathbb{Z}^{d}$ substitutions
复制标题
$mathbb{Z}^{d}$ 替换的谱理论
DOI:
10.1017/etds.2016.66
复制
发表时间:
2016
影响因子:
0.9
通讯作者:
Alan F. Bartlett
中科院分区:
文献类型:
--
作者:
Alan F. Bartlett
In this paper, we generalize and develop results of Queffélec allowing us to characterize the spectrum of an aperiodic $\mathbb{Z}^{d}$ substitution. Specifically, we describe the Fourier coefficients of mutually singular measures of pure type giving rise to the maximal spectral type of the translation operator on $L^{2}$ , without any assumptions on primitivity or height, and show singularity for aperiodic bijective commutative $\mathbb{Z}^{d}$ substitutions. Moreover, we provide a simple algorithm to determine the spectrum of aperiodic $\mathbf{q}$ -substitutions, and use this to show singularity of Queffélec’s non-commutative bijective substitution, as well as the Table tiling, answering an open question of Solomyak. Finally, we show that every ergodic matrix of measures on a compact metric space can be diagonalized, which we use in the proof of the main result.