Abstract
We introduce the notion of syntactic nuclei of languages and give a new formulation of Kleene's theorem in terms of syntactic nuclei. We prove that a language is rational if and only if its syntactic nucleus is finitary.
Original language | English |
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Pages (from-to) | 221-226 |
Number of pages | 6 |
Journal | Information Processing Letters |
Volume | 67 |
Issue number | 5 |
Publication status | Published - 15 Sept 1998 |
Keywords
- Automata
- Formal languages
- Formal series
- Semirings
- Syntactic congruences
- Syntactic nuclei