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arXiv 1806.11005math.DS
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秩一子移位的拓扑混合性质

Topological Mixing Properties of Rank-One Subshifts

Su Gao, Caleb Ziegler

摘要:

研究了作为拓扑动力系统的秩一子移位的拓扑混合性质和最大等度连续因子。我们证明了秩一子移位的最大等度连续因子是有限的。我们还确定了所有的有限因素的秩一移位的条件涉及的切割和间隔参数。对于具有有界间隔参数的秩一子移位,我们完全刻画了弱混合和混合。对于具有无界间隔参数的秩一子移位,我们证明了弱混合和混合的几个充分条件。我们还构造了一些例子,表明有界间隔参数的情况下的特征不推广到无界间隔参数的情况下。

英文摘要:

We study topological mixing properties and the maximal equicontinuous factor of rank-one subshifts as topological dynamical systems. We show that the maximal equicontinuous factor of a rank-one subshift is finite. We also determine all the finite factors of a rank-one shift with a condition involving the cutting and spacer parameters. For rank-one subshifts with bounded spacer parameter we completely characterize weak mixing and mixing. For rank-one subshifts with unbounded spacer parameter we prove some sufficient conditions for weak mixing and mixing. We also construct some examples showing that the characterizations for the bounded spacer parameter case do not generalize to the unbounded spacer parameter case.

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