On ω-sets associated with context-free languages
✍ Scribed by M. Linna
- Book ID
- 118530907
- Publisher
- Elsevier Science
- Year
- 1976
- Weight
- 845 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0019-9958
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📜 SIMILAR VOLUMES
We prove that each context-free language possesses a test set of size \(O\left(m^{6}\right)\), where \(m\) is the number of productions in a grammar-producing the language. A context-free grammar generating the test set can be found in polynomial time by a sequential algorithm. It improves the doubl
This paper is a continuation of the study of topological properties of omega context free languages (!-CFL). We proved in (Topological properties of omega context free languages, Theoretical Computer Science, 262 (1-2) (2001) 669-697) that the class of !-CFL exhausts the ÿnite ranks of the Borel hie