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Asynchronous PC Systems of Pushdown Automata

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Language and Automata Theory and Applications (LATA 2013)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 7810))

Abstract

We introduce asynchronous variants of the PC systems of pushdown automata of Csuhaj-Varjú et. al. These are obtained by using a response symbol in addition to the usual query symbols. Our main result states that centralized asynchronous PC systems of pushdown automata of degree n that work in returning mode have exactly the same expressive power as n-head pushdown automata. This holds in the nondeterministic as well as in the deterministic case.

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References

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Otto, F. (2013). Asynchronous PC Systems of Pushdown Automata. In: Dediu, AH., Martín-Vide, C., Truthe, B. (eds) Language and Automata Theory and Applications. LATA 2013. Lecture Notes in Computer Science, vol 7810. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-37064-9_40

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  • DOI: https://doi.org/10.1007/978-3-642-37064-9_40

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-37063-2

  • Online ISBN: 978-3-642-37064-9

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