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arXiv 1105.4725cs.FLmath.GR
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关于自动机(半)群的连续性问题

On the Finiteness Problem for Automaton (Semi)groups

Ali Akhavi, Ines Klimann, Sylvain Lombardy, Jean Mairesse, Matthieu Picantin

摘要:

本文讨论了Grigorchuk,Nekrashevich和Sushchanskii强调的一个决策问题,即自动机(半)群的有限性问题。对于半群,我们给出了有限性的一个有效的充分但非必要条件,对于群,我们给出了一个有效的必要但非充分条件。通过对所有具有小状态集和小字母表的Mealy自动机的测试,证明了新准则的有效性。最后,对于群体,我们提供了一个不直接导致决策过程的充分必要条件。

英文摘要:

This paper addresses a decision problem highlighted by Grigorchuk, Nekrashevich, and Sushchanskii, namely the finiteness problem for automaton (semi)groups. For semigroups, we give an effective sufficient but not necessary condition for finiteness and, for groups, an effective necessary but not sufficient condition. The efficiency of the new criteria is demonstrated by testing all Mealy automata with small stateset and alphabet. Finally, for groups, we provide a necessary and sufficient condition that does not directly lead to a decision procedure.

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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