Ergodic Properties of Randomly Coloured Point Sets
Ergodic Properties of Randomly Coloured Point Sets
复制标题
随机着色点集的遍历性质
DOI:
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发表时间:
2010
期刊:
影响因子:
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通讯作者:
C. Richard
中科院分区:
文献类型:
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作者:
P. Müller;C. Richard
Abstract We provide a framework for studying randomly coloured point sets in a locally compact second-countable space on which a metrizable unimodular group acts continuously and properly. We first construct and describe an appropriate dynamical system for uniformly discrete uncoloured point sets. For point sets of finite local complexity, we characterize ergodicity geometrically in terms of pattern frequencies. The general framework allows us to incorporate a random colouring of the point sets. We derive an ergodic theorem for randomly coloured point sets with finite-range dependencies. Special attention is paid to the exclusion of exceptional instances for uniquely ergodic systems. The setup allows for a straightforward application to randomly coloured graphs