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Hierarchies of weakly monotone restarting automata

Published online by Cambridge University Press:  15 April 2005

František Mráz  and
Friedrich Otto
František Mráz
Affiliation:
Department of Computer Science, Charles University, Malostranské nám. 25, 118 00 Praha 1, Czech Republic; mraz@ksvi.ms.mff.cuni.cz
Friedrich Otto
Affiliation:
Fachbereich Mathematik/Informatik, Universität Kassel, 34109 Kassel, Germany; otto@theory.informatik.uni-kassel.de
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Abstract

It is known that the weakly monotone restarting automata acceptexactly the growing context-sensitive languages. We introduce ameasure on the degree of weak monotonicity and show that thelanguage classes obtained in this way form strict hierarchies forthe various types of deterministic and nondeterministic restartingautomata without auxiliary symbols.

Keywords

Restarting automataweak monotonicityhierarchies
Type
Research Article
Information
RAIRO - Theoretical Informatics and Applications , Volume 39 , Issue 2 , April 2005 , pp. 325 - 342
Copyright
© EDP Sciences, 2005

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References

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