Collapsible pushdown automata and labeled recursion schemes: Equivalence, safety and effective selection

Arnaud Carayol, Olivier Serre

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Higher-order recursion schemes are rewriting systems for simply typed terms and they are known to be equi-expressive with collapsible pushdown automata (CPDA) for generating trees. We argue that CPDA are an essential model when working with recursion schemes. First, we give a new proof of the translation of schemes into CPDA that does not appeal to game semantics. Second, we show that this translation permits to revisit the safety constraint and allows CPDA to be seen as Krivine machines. Finally, we show that CPDA permit one to prove the effective MSO selection property for schemes, subsuming all known decidability results for MSO on schemes.

Original languageEnglish
Title of host publicationProceedings of the 2012 27th Annual ACM/IEEE Symposium on Logic in Computer Science, LICS 2012
Pages165-174
Number of pages10
DOIs
Publication statusPublished - 11 Oct 2012
Externally publishedYes
Event2012 27th Annual ACM/IEEE Symposium on Logic in Computer Science, LICS 2012 - Dubrovnik, Croatia
Duration: 25 Jun 201228 Jun 2012

Publication series

NameProceedings of the 2012 27th Annual ACM/IEEE Symposium on Logic in Computer Science, LICS 2012

Conference

Conference2012 27th Annual ACM/IEEE Symposium on Logic in Computer Science, LICS 2012
Country/TerritoryCroatia
CityDubrovnik
Period25/06/1228/06/12

Keywords

  • Collapsible Pushdown Automata
  • MSO Effective Selection
  • Recursion Schemes
  • Safety Constraint

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