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arXiv 0801.0537cs.LOmath.LO
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具有极大拓扑复杂性的无穷实迹有理语言

On Infinite Real Trace Rational Languages of Maximum Topological Complexity

Olivier Finkel, Jean-Pierre Ressayre, Pierre Simonnet

摘要:

我们考虑无限实迹的集合,在一个依赖字母表(Gamma,D)没有孤立的字母,配备了前缀度量诱导的拓扑。然后,我们证明了所有无限实迹的有理语言都是解析集,并且存在一些无限实迹的有理语言是解析的但不是博雷尔集,甚至是Sigma^1_1-完备的,因此具有最大可能的拓扑复杂性。

英文摘要:

We consider the set of infinite real traces, over a dependence alphabet (Gamma, D) with no isolated letter, equipped with the topology induced by the prefix metric. We then prove that all rational languages of infinite real traces are analytic sets and that there exist some rational languages of infinite real traces which are analytic but non Borel sets, and even Sigma^1_1-complete, hence of maximum possible topological complexity.

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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