Tree-Walking Automata Cannot Be Determinized

  • Mikołaj Bojańczyk
  • Thomas Colcombet
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3142)


Tree-walking automata are a natural sequential model for recognizing tree languages. It is shown that deterministic tree-walking automata are weaker than nondeterministic tree-walking automata.


Unary Pattern Regular Language Search Behaviour Tree Language Deterministic Automaton 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Mikołaj Bojańczyk
    • 1
  • Thomas Colcombet
    • 1
  1. 1.Uniwersytet Warszawski, Wydział MIMWarszawaPoland

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