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Reversal on Regular Languages and Descriptional Complexity

机译:逆转常规语言和描述复杂性

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We study the problem stated as follows: which values in the range from log n to 2~n may be obtained as the state complexity of the reverse of a regular language represented by a minimal deterministic automaton of n states? In the main result of this paper we use an alphabet of size 2n - 2 to show that the entire range of complexities may be produced for any n. This considerably improves an analogous result from the literature that uses an alphabet of size 2~n. We also provide some partial results for the case of a binary alphabet.
机译:我们研究如下所述的问题:可以获得从log n到2〜n的范围内的值作为由n个状态的最小确定性自动机表示的常规语言的反向的状态复杂度?在本文的主要结果中,我们使用大小2n-2的字母表来表明可以为任何n产生整个复杂程度。这大大改善了使用大小2〜n的字母表的文献的类似结果。我们还为二进制字母表提供了一些部分结果。

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