2008 | OriginalPaper | Buchkapitel
On the Recognizability of Arrow and Graph Languages
verfasst von : H. J. Sander Bruggink, Barbara König
Erschienen in: Graph Transformations
Verlag: Springer Berlin Heidelberg
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In this paper we give a category-based characterization of recognizability. A recognizable subset of arrows is defined via a functor into the category of relations on sets, which can be seen as a straightforward generalization of a finite automaton. In the second part of the paper we apply the theory to graphs, and we show that our approach is a generalization of Courcelle’s recognizable graph languages.