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arXiv 1809.10022math.DS
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非紧集上熵的上半连续性

Upper semi-continuity of entropy in non-compact settings

Godofredo Iommi, Mike Todd, Aníbal Velozo

摘要:

证明了有限熵的可数马氏位移的熵映射在遍历测度下是上半连续的。注意,相空间是非紧的。应用程序的系统,可以编码这些移位,如正熵紧流形上的同态,给出。并讨论了极大熵测度存在性的相关问题。

英文摘要:

We prove that the entropy map for countable Markov shifts of finite entropy is upper semi-continuous at ergodic measures. Note that the phase space is non-compact. Applications to systems that can be coded by these shifts, such as positive entropy diffeomorphisms on compact manifolds, are given. We also discuss the related problem of existence of measures of maximal entropy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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