In this paper we consider languages of labelled N-free posets over countable and scattered linear orderings. We prove that a language of such posets is series-rational if and only ...
ing Complex Languages through Transformation and Composition Jendrik Johannes, Steffen Zschaler, Miguel A. Fernández, Antonio Castillo, Dimitrios S. Kolovos and Richard F. Paige ...
Jendrik Johannes, Steffen Zschaler, Miguel A. Fern...