IBP-Litp
1994/06:
Rapport de Recherche Litp /
Litp research reports
25 pages - Décembre/December 1994 -
French document.
PostScript : Ko /Kb
Titre / Title: Décidabilité de l'appartenance à la variété de langages engendrée par les langages testables par morceaux et les langages de bandes
Abstract : The aim of this article is to prove that the variety generated by the piecewise testable languages and the band languages est décidable. In other words, we show that the pseudovariety generated par J»B, that is to say, the join of the pseudovariety of J-trivial semigroups and of the one of idempotent semigroups, is decidable. The techniques used were treated by Almeida and are based on the study of the study of the topological semigroup of implicit operations.
Publications internes Litp 1994 / Litp research reports 1994