Context-Free Tree languages for Descendants


The preservation of regular tree languages through rewriting, has already been studied. In this paper, we study the preservation of context-free tree languages through rewriting, for constructor-based term rewrite systems. We give positive and negative results. Positive results are effective since we give algorithms to build context-free grammars. 


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Cite this paper

@inproceedings{Rty2008ContextFreeTL, title={Context-Free Tree languages for Descendants}, author={Pierre R{\'e}ty and Julie Vuotto}, year={2008} }