Regulated nondeterminism in pushdown automata : the non-regular case

Result code in IS VaVaI
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Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Regulated nondeterminism in pushdown automata : the non-regular case
Original language description
We continue the investigation of pushdown automata which are allowed to make a non-deterministic decision if and only if their pushdown content forms a string belonging to a given control language. We prove that if the control language is linear and non-regular, then the power of pushdown automata regulated in this way is increased to the power of Turing machines. From a practical point of view, however, it is inefficient to check the form of the pushdown content in each computational step. Therefore, we prove that only two checks of the pushdown content are of interest for these machines to be computationally complete. Based on this observation, we introduce and discuss a new model of regulated pushdown automata.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BA - General mathematics
OECD FORD branch
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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