Some Varieties of Finite Tree Automata Related to Restricted Temporal Logics

  • Authors:
  • Zoltán Ésik;Szabolcs Iván

  • Affiliations:
  • Department of Computer Science, University of Szeged, Hungary and GRLMC, Rovira i Virgili University, Tarragona, Spain. E-mail: ze@inf.u-szeged.hu;Department of Computer Science, University of Szeged, Hungary. E-mail: szabivan@inf.u-szeged.hu

  • Venue:
  • Fundamenta Informaticae
  • Year:
  • 2008

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Abstract

We provide structural descriptions of certain varieties of finite tree automata closed under a version of the cascade product, called the Moore product. As a byproduct, we obtain decidable characterizations of the expressive power of certain fragments of CTL on finite trees.