Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Expressive power of LL(k) boolean grammars. / Okhotin, Alexander.
Fundamentals of Computation Theory - 16th International Symposium, FCT 2007, Proceedings. Springer Nature, 2007. стр. 446-457 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Том 4639 LNCS).Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
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TY - GEN
T1 - Expressive power of LL(k) boolean grammars
AU - Okhotin, Alexander
N1 - Funding Information: The author is grateful to the anonymous reviewers for careful reading and numerous valuable comments, and particularly for noticing a serious error in the earlier ad hoc proof of Example 8. The work was supported by the Academy of Finland under grants 118540 and 134860.
PY - 2007
Y1 - 2007
N2 - The family of languages generated by Boolean grammars and usable with recursive descent parsing is studied. It is demonstrated that Boolean LL languages over a unary alphabet are regular, while Boolean LL subsets of Σ* a* obey a certain periodicity property, which, in particular, makes the language {anb2n | n ≥ 0} nonrepresentable. It is also shown that {anbncs | n ≥ 0, s ∈ {a, b}} is not generated by any linear conjunctive LL grammar, while linear Boolean LL grammars cannot generate {anb nc* |n ≥S 0}.
AB - The family of languages generated by Boolean grammars and usable with recursive descent parsing is studied. It is demonstrated that Boolean LL languages over a unary alphabet are regular, while Boolean LL subsets of Σ* a* obey a certain periodicity property, which, in particular, makes the language {anb2n | n ≥ 0} nonrepresentable. It is also shown that {anbncs | n ≥ 0, s ∈ {a, b}} is not generated by any linear conjunctive LL grammar, while linear Boolean LL grammars cannot generate {anb nc* |n ≥S 0}.
UR - http://www.scopus.com/inward/record.url?scp=38149008756&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-74240-1_39
DO - 10.1007/978-3-540-74240-1_39
M3 - Conference contribution
AN - SCOPUS:38149008756
SN - 9783540742395
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 446
EP - 457
BT - Fundamentals of Computation Theory - 16th International Symposium, FCT 2007, Proceedings
PB - Springer Nature
T2 - 16th International Symposium on Fundamentals of Computation Theory, FCT 2007
Y2 - 27 August 2007 through 30 August 2007
ER -
ID: 78926537