Two-sided Pushdown Automata over Free Groups

نویسندگان

  • Petr BLATNÝ
  • Alexander Meduna
چکیده

In the two-sided pushdown automata discussed in this paper, their two-sided pushdowns are introduced over free groups rather than free monoids. It is demonstrated that these automata with pushdowns introduced in this way characterize the family of recursively enumerable languages.

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تاریخ انتشار 2006