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A closure property of regular languages

โœ Scribed by Thomas Kretschmer


Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
412 KB
Volume
61
Category
Article
ISSN
0304-3975

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๐Ÿ“œ SIMILAR VOLUMES


Closure properties of slender languages
โœ Gheorghe Paลญn; Arto Salomaa ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 576 KB
Squares of regular languages
โœ Gerhard Lischke ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 127 KB

The square of a language L is the set of all words pp where p โˆˆ L. The square of a regular language may be regular too or context-free or none of both. We give characterizations for each of these cases and show that it is decidable whether a regular language has one of these properties.

A note on ฯ‰-regular languages
โœ Masako Takahashi; Hideki Yamasaki ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 647 KB