Grammar Schemata

@article{Gabrielian1974GrammarS,
  title={Grammar Schemata},
  author={A. Gabrielian and S. Ginsburg},
  journal={J. ACM},
  year={1974},
  volume={21},
  pages={213-226}
}
A solution is presented for the following problem: Determine a procedure that produces, for each full trio L of context-free languages (more generally, each trio of r.e. languages), a family of context-free (phrase structure) grammars which (a) defines L, (b) is simple enough for practical and theoretical purposes, and (c) in most cases is a subfamily of a well-known family of context-free (phrase structure) grammars for L if such a well-known family exists. (A full trio (trio) is defined to be… 
9 Citations
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