Skip to main content

On the complexity of random strings

Extended abstract

  • Conference paper
  • First Online:
STACS 96 (STACS 1996)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1046))

Included in the following conference series:

Abstract

We show that the set R of Kolmogorov random strings is truth-table complete. This improves the previously known Turing completeness of R and shows how the halting problem can be encoded into the distribution of random strings rather than using the time complexity of non-random strings. As an application we obtain that Post's simple set is truth-table complete in every Kolmogorov numbering. We also show that the truth-table completeness of R cannot be generalized to size-complexity with respect to arbitrary acceptable numberings. In addition we note that R is not frequency computable.

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

Access this chapter

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. R. Beigel, M. Kummer, F. Stephan. Approximable sets. Information and Computation, 120:304–314, 1995.

    Article  Google Scholar 

  2. H. Buhrman, E. Mayordomo. An excursion to the Kolmogorov random strings. In: Proceedings Structure in Complexity Theory, Tenth Annual Conference, pp. 197–203, 1995.

    Google Scholar 

  3. H. Buhrman, P. Orponen. Random strings make hard instances. In: Proceedings Structure in Complexity Theory, Ninth Annual Conference, pp. 217–222, 1994.

    Google Scholar 

  4. C. Calude. Information and randomness. Springer-Verlag, Berlin, 1994.

    Google Scholar 

  5. G. J. Chaitin. On the number of n-bit strings with maximum complexity. Applied Mathematics and Computation, 59:97–100, 1993.

    Google Scholar 

  6. G. J. Chaitin, A. Arslanov, C. Calude. Program-size complexity computes the halting problem. Bulletin of the EATCS, 57:198–200, 1995.

    Google Scholar 

  7. R. Freivalds, S. Jain. Kolmogorov numberings and minimal identification. In: Proceedings EuroCOLT'95, Lecture Notes in Computer Science, 904:182–195, 1995.

    Google Scholar 

  8. C. G. Jockusch, R. I. Soare. Post's problem and his hypersimple set. In: Journal of Symbolic Logic, 38:446–452, 1973.

    Google Scholar 

  9. S. Kaufmann, M. Kummer. On a quantitative notion of uniformity. In: Proceedings MFCS'95, Lecture Notes in Computer Science, 969:169–178, 1995.

    Google Scholar 

  10. A. N. Kolmogorov. Three approaches to the quantitative definition of information. Problems Inform. Transmission, 1:1–7, 1965.

    Google Scholar 

  11. M. Kummer, F. Stephan. Recursion theoretic properties of frequency computation and bounded queries. Information and Computation, 120:59–77, 1995.

    Google Scholar 

  12. A. H. Lachlan. wtt-complete sets are not necessarily tt-complete. Proc. Amer. Math. Soc., 48:429–434, 1975.

    Google Scholar 

  13. M. Li, P. Vitányi. An Introduction to Kolmogorov Complexity and its Applications. Springer-Verlag, New York, 1993.

    Google Scholar 

  14. N. Lynch. Approximations to the halting problem. Journal of Computer and System Sciences, 9:143–150, 1974.

    Google Scholar 

  15. P. Odifreddi. Classical recursion theory. North-Holland, Amsterdam, 1989.

    Google Scholar 

  16. E. L. Post. Recursively enumerable sets of positive integers and their decision problems. Bull. Amer. Math. Soc., 50:284–316, 1944.

    Google Scholar 

  17. G. F. Rose. An extended notion of computability. In Abstr. Intern. Congr. for Logic, Meth., and Phil. of Science, Stanford, CA, 1960.

    Google Scholar 

  18. C. P. Schnorr. Optimal enumerations and optimal Gödel numberings. Mathematical Systems Theory, 8:182–191, 1974.

    Article  Google Scholar 

  19. R. I. Soare. Recursively enumerable sets and degrees. Springer-Verlag, Berlin, 1987.

    Google Scholar 

  20. P. Vitányi. E-mail to the author. September 15, 1995.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Claude Puech Rüdiger Reischuk

Rights and permissions

Reprints and permissions

Copyright information

© 1996 Springer-Verlag Berlin Heidelberg

About this paper

Cite this paper

Kummer, M. (1996). On the complexity of random strings. In: Puech, C., Reischuk, R. (eds) STACS 96. STACS 1996. Lecture Notes in Computer Science, vol 1046. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-60922-9_3

Download citation

  • DOI: https://doi.org/10.1007/3-540-60922-9_3

  • Published:

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-60922-3

  • Online ISBN: 978-3-540-49723-3

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics