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arXiv 0907.5111cs.FLcs.DM
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关于单词的Shuffle自动机大小

On the Shuffle Automaton Size for Words

Franziska Biegler, Mark Daley, Ian McQuillan

摘要:

我们研究的状态大小的DFAs接受两个字的洗牌。我们提供单词u和v,使得u与v混洗的最小DFA需要指数数量的状态。我们还展示了一些条件的话u和v,确保二次上限的状态大小的u洗牌与v。此外,切换只有两个字母内的u或v是足以触发的变化,从二次指数。

英文摘要:

We investigate the state size of DFAs accepting the shuffle of two words. We provide words u and v, such that the minimal DFA for u shuffled with v requires an exponential number of states. We also show some conditions for the words u and v which ensure a quadratic upper bound on the state size of u shuffled with v. Moreover, switching only two letters within one of u or v is enough to trigger the change from quadratic to exponential.

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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