Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.02 vteřin. 
Deep Pushdown Automata and Their Restricted Versions
Charvát, Lucie ; Kučera, Jiří (oponent) ; Meduna, Alexandr (vedoucí práce)
For a positive integer n, n-expandable deep pushdown automata always contain no more than n occurrences of non-input symbols in their pushdowns during any compilation. As its main result, the present thesis demonstrates that those automata are as powerful as the same automata with #, which always appears solely as the pushdown bottom, and a single pushdown non-input symbol. An infinite hierarchy of language families follows from this result.
Deep Pushdown Automata and Their Restricted Versions
Charvát, Lucie ; Kučera, Jiří (oponent) ; Meduna, Alexandr (vedoucí práce)
For a positive integer n, n-expandable deep pushdown automata always contain no more than n occurrences of non-input symbols in their pushdowns during any compilation. As its main result, the present thesis demonstrates that those automata are as powerful as the same automata with #, which always appears solely as the pushdown bottom, and a single pushdown non-input symbol. An infinite hierarchy of language families follows from this result.

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