ALGORITHMIC PROPERTIES OF BASIC CATEGORIAL GRAMMARS WITH UNIQUE CATEGORY ASSIGNMENT

Cover Page

Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

The work is devoted to basic categorial grammars with unique type assignment (BCGUTA). For this class, a number of algorithmic properties are examined. It is proven that, for an arbitrary context-free language L, the problem of verifying whether is generated by a grammar from the BCGUTA class is algorithmically undecidable. Furthermore, it is proven that for any two BCGUTA grammars, the problem of determining the emptiness of the intersection of the languages generated by these grammars is also algorithmically undecidable.

About the authors

M. E Vishnikin

Lomonosov Moscow State University

Email: maksim.vishnikin@math.msu.ru
Moscow, Russia

References

  1. Ajdukiewicz K. Die syntaktische konnexitat // Studia philosophica. 1935. P. 1-27.
  2. Bar-Hillel Y. A quasi-arithmetical notation for syntactic description // Language. 1953. V. 29. № 1. P. 47-58.
  3. Bar-Hillel Y., Gaijman H., Shamir E. On categorial and phrase structure grammars // Bulletin of the Research Council of Israel. 1960. 9F. P. 155-166.
  4. Вишникин М.Е. Базовые категориальные грамматики с однозначным присвоением типов // Вестник Московского университета. Серия 1. Математика. Механика. 2022. № 2. C. 64-67.
  5. Post E. A variant of a recursively unsolvable problem // Bull. Amer. Math. Soc. 1946. V. 52. № 4. P. 264-269.
  6. Пентус А.Е., Пентус М.Р. Теория формальных языков: Учебное пособие. Москва: Изд-во ЦПИ при механико-математическом ф-те МГУ. 2004. 80 стр.
  7. Neary T. Undecidability in binary tag systems and the Post correspondence problem for five pairs of words // Proceedings of the 32nd International Symposium on Theoretical Aspects of Computer Science. 2015. V. 30. P. 649-661.
  8. Foret A. The emptiness of intersection problem for languages of k-valued categorial grammars (classical and Lambek) is undecidable // Electronic Notes in Theoretical Computer Science. 2004. V. 53. P. 81-93.
  9. Kanazawa M. Identification in the limit of categorial grammars // Journal of Logic, Language and Information. 1996. V. 5. P. 115-155.

Supplementary files

Supplementary Files
Action
1. JATS XML

Note

In the print version, the article was published under the DOI: 10.31857/S2686954325030044


Copyright (c) 2025 Russian Academy of Sciences

Согласие на обработку персональных данных

 

Используя сайт https://journals.rcsi.science, я (далее – «Пользователь» или «Субъект персональных данных») даю согласие на обработку персональных данных на этом сайте (текст Согласия) и на обработку персональных данных с помощью сервиса «Яндекс.Метрика» (текст Согласия).