Abstract (EN):
The problem considered in this paper is whether an inequality of omega-terms is valid in a given level of a concatenation hierarchy of star-free languages. The main result shows that this problem is decidable for all (integer and half) levels of the Straubing-Therien hierarchy.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
17