About: Descriptional Complexity of Three-Nonterminal Scattered Context Grammars: An Improvement     Goto   Sponge   NotDistinct   Permalink

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  • Recently, it has been shown that every recursively enumerable language can be generated by a scattered context grammar with no more than three nonterminals. However, in that construction, the maximal number of nonterminals simultaneously rewritten during a derivation step depends on many factors, such as the cardinality of the alphabet of the generated language and the structure of the generated language itself. This paper improves the result by showing that the maximal number of nonterminals rewritten during any derivation step can be limited by a small constant regardless of other factors.<br>
  • Recently, it has been shown that every recursively enumerable language can be generated by a scattered context grammar with no more than three nonterminals. However, in that construction, the maximal number of nonterminals simultaneously rewritten during a derivation step depends on many factors, such as the cardinality of the alphabet of the generated language and the structure of the generated language itself. This paper improves the result by showing that the maximal number of nonterminals rewritten during any derivation step can be limited by a small constant regardless of other factors.<br> (en)
Title
  • Descriptional Complexity of Three-Nonterminal Scattered Context Grammars: An Improvement
  • Descriptional Complexity of Three-Nonterminal Scattered Context Grammars: An Improvement (en)
skos:prefLabel
  • Descriptional Complexity of Three-Nonterminal Scattered Context Grammars: An Improvement
  • Descriptional Complexity of Three-Nonterminal Scattered Context Grammars: An Improvement (en)
skos:notation
  • RIV/00216305:26230/09:PU82608!RIV10-MSM-26230___
http://linked.open...avai/riv/aktivita
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  • P(GA201/07/0005), Z(MSM0021630528)
http://linked.open...vai/riv/dodaniDat
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  • 309616
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  • RIV/00216305:26230/09:PU82608
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  • Scattered context grammars, descriptional complexity, generative power<br> (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [EB74B3DDB92C]
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  • Magdeburg
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  • Magdeburg
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  • Proceedings of 11th International Workshop on Descriptional Complexity of Formal Systems
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  • Masopust, Tomáš
  • Meduna, Alexandr
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http://linked.open...n/vavai/riv/zamer
number of pages
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  • Otto-von-Guericke-University of Magdeburg
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  • 978-3-940961-31-0
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  • 26230
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