We define weakly commutative languages and periodic languages. We show that a language is regular if and only if it is simultaneously weakly commutative and periodic.
CITATION STYLE
Reutenauer, C. (1981). A new characterization of the regular languages. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 115 LNCS, pp. 177–183). Springer Verlag. https://doi.org/10.1007/3-540-10843-2_14
Mendeley helps you to discover research relevant for your work.