Higher-order recursion schemes and higher-order pushdown automata are closely related methods for generating infinite hierarchies of infinite structures. Subsuming well-known classes of models of computation, these rich hierarchies (of word languages, trees, and graphs respectively) have excellent model-checking properties. In this extended abstract, we survey recent expressivity and decidability results about these infinite structures. © Springer-Verlag Berlin Heidelberg 2007.
CITATION STYLE
Ong, C. H. L. (2007). Hierarchies of infinite structures generated by pushdown automata and recursion schemes. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 4708 LNCS, pp. 15–21). Springer Verlag. https://doi.org/10.1007/978-3-540-74456-6_4
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