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arXiv 1902.00975cs.CC
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关于实时的图灵机的几点注记

Some Remarks on Real-Time Turing Machines

Holger Petersen

摘要:

研究了利用次线性空间的实时的【形】图灵机的性能。与文献中出现的声明相反,这种机器可以接受非正则语言,即使工作在确定性模式下。虽然保持一个标准的二进制计数器似乎是不可能的实时的【形】,我们提出了一个猜测和检查的方法,产生一个二进制表示的输入长度。基于这种技术,我们表明,在指数时间接受的语言的一元编码可以识别的非确定性实时的【形】图灵机。

英文摘要:

The power of real-time Turing machines using sublinear space is investigated. In contrast to a claim appearing in the literature, such machines can accept non-regular languages, even if working in deterministic mode. While maintaining a standard binary counter appears to be impossible in real-time, we present a guess and check approach that yields a binary representation of the input length. Based on this technique, we show that unary encodings of languages accepted in exponential time can be recognized by nondeterministic real-time Turing machines.

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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