Definability Results for Top-Down Tree Transducers

Autor: Helmut Seidl, Sebastian Maneth, Martin Vu
Rok vydání: 2021
Předmět:
Zdroj: Developments in Language Theory ISBN: 9783030815073
DLT
DOI: 10.1007/978-3-030-81508-0_24
Popis: We prove that for a given deterministic top-down transducer with look-ahead it is decidable whether or not its translation is definable (1) by a linear top-down tree transducer or (2) by a tree homomorphism. We present algorithms that construct equivalent such transducers if they exist.
Databáze: OpenAIRE