Multiple Context-Free Tree Grammars: Lexicalization and Characterization

  title={Multiple Context-Free Tree Grammars: Lexicalization and Characterization},
  author={Joost Engelfriet and Andreas Maletti and Sebastian Maneth},
  journal={Theor. Comput. Sci.},
Multiple (simple) context-free tree grammars are investigated, where "simple" means "linear and nondeleting". Every multiple context-free tree grammar that is finitely ambiguous can be lexicalized; i.e., it can be transformed into an equivalent one (generating the same tree language) in which each rule of the grammar contains a lexical symbol. Due to this transformation, the rank of the nonterminals increases at most by 1, and the multiplicity (or fan-out) of the grammar increases at most by… Expand
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  • Lecture Notes in Computer Science
  • 1980
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