• Title of article

    Orthogonal Concatenation: Language Equations and State Complexity, In Honor of Derick Wood’s 70th Birthday

  • Author/Authors

    Daley, Mark University of Western Ontario - Department of Computer Science and Department of Biology, Canada , Domaratzki, Michael University of Manitoba - Department of Computer Science, Canada , Salomaa, Kai Queen’s University - School of Computing, Canada

  • From page
    653
  • To page
    675
  • Abstract
    A language L is the orthogonal concatenation of languages L1 and L2 if every word of L can be written in a unique way as a concatenation of a word in L1 and a word in L2. The notion can be generalized for arbitrary language operations. We consider decidability properties of language orthogonality and the solvability of language equations involving the orthogonal concatenation operation. We establish a tight bound for the state complexity of orthogonal concatenation of regular languages.
  • Keywords
    language operations , language equations , regular languages , state com , plexity , decidability
  • Journal title
    International Journal of Universal Computer Sciences
  • Journal title
    International Journal of Universal Computer Sciences
  • Record number

    2574732