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arXiv 1012.0023cs.FL
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线性和非线性上下文无关语言的泵引理

Pumping lemmas for linear and nonlinear context-free languages

Géza Horváth, Benedek Nagy

摘要:

为了证明给定的语言不属于特定的语言类,提出了泵引理。有几个已知的泵引理的整个类和一些特殊类的上下文无关语言。在本文中,我们证明了新的,有趣的泵引理特殊的线性和上下文无关的语言类。其中一些可以用来同时在两个地方抽取正则语言。其他引理可以用来在任意多个地方抽取上下文无关语言。

英文摘要:

Pumping lemmas are created to prove that given languages are not belong to certain language classes. There are several known pumping lemmas for the whole class and some special classes of the context-free languages. In this paper we prove new, interesting pumping lemmas for special linear and context-free language classes. Some of them can be used to pump regular languages in two place simultaneously. Other lemma can be used to pump context-free languages in arbitrary many places.

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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