Abstract
We review several algebraic formalisms used for characterizing families of regular tree languages. A theory based on syntactic algebras and varieties of congruences is presented in detail, including the Variety Theorem that establishes the correspondences between varieties of tree languages, varieties of finite algebras and varieties of congruences on the finitely generated term algebras. Several examples of varieties of tree languages are given. Also generalizations of this theory as well as some alternative approaches are considered.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.