Skip to main content
Log in

Constructing a –ω-Regular Expression Specified by a Graph of Elementary Extensions

  • CYBERNETICS
  • Published:
Cybernetics and Systems Analysis Aims and scope

Abstract

In synthesis of a Σ-automaton specified in the LP language, the problem arises how to represent the set of –ω-words defined by a formula F (t ) in the form of a –ω-regular expression. Constructing this representation is based on the correspondence between structural components of formulas and –ω-regular expressions. To provide such a correspondence, two additional operations on –ω-regular sets relating to the operation of quantification in the formulas are introduced. The problem is reduced to calculating the –ω-regular expressions defined by these operations. This calculation relies on the construction of a graph of elementary extensions, in which certain set of infinite paths corresponds to all –ω-words that belong to the –ω-set to be calculated. A method for constructing a –ω-regular expression specified by such a graph is proposed in the paper. This method is based on solving a system of linear equations over –ω-regular sets.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. A. N. Chebotarev, “From LP formulas of the form F (t ) to –ω-regular expressions,” Cybern. Syst. Analysis, Vol. 56, No. 5, 689–700 (2020). https://doi.org/https://doi.org/10.1007/s10559-020-00286-x.

  2. P. Thiemann and M. Sulzmann, “From ω-regular expressions to Buchi automata via partial derivatives,” in: A. H. Dediu, E. Formenti, C. Martín-Vide, and B. Truthe (eds.), Language and Automata Theory and Applications, LATA 2015; Lecture Notes in Computer Science, Vol. 8977, Springer, Cham (2015), pp. 287–298. https://doi.org/https://doi.org/10.1007/978-3-319-15579-1_22.

  3. A. N. Chebotarev, “Intersection of –ω-regular expressions,” Cybern. Syst. Analysis, Vol. 57, No. 5, 676–684 (2021). https://doi.org/https://doi.org/10.1007/s10559-021-00393-3.

  4. L. Staiger, “On ω-power languages,” in: G. Păun and A. Salomaa (eds.), New Trends in Formal Languages; Lecture Notes in Computer Science, Vol. 1218, Berlin–Heidelberg, Springer (1997), pp. 377–394. https://doi.org/https://doi.org/10.1007/3-540-62844-4_27.

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to A. N. Chebotarev.

Additional information

Translated from Kibernetyka ta Systemnyi Analiz, No. 2, March–April, 2022, pp. 3–9.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chebotarev, A.N. Constructing a –ω-Regular Expression Specified by a Graph of Elementary Extensions. Cybern Syst Anal 58, 165–170 (2022). https://doi.org/10.1007/s10559-022-00447-0

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10559-022-00447-0

Keywords

Navigation