Skip to main content
Log in

Informativeness of functionals

  • Published:
Ukrainian Mathematical Journal Aims and scope

Abstract

We introduce the concept of informativeness of a continuous functional on a metric spaceX with respect to a setMX and a metric ρx. We pose the problem of finding the most informative functional. For some sets of continuous functions, this problem is solved by reduction to a subset of functionals given by the value of a function at a certain point.

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. G. G. Lorentz,Approximation of Functions, Holt, Rinehart, and Winston, New York (1966).

    Google Scholar 

  2. V. M. Tikhomirov,Some Problems in the Theory of Approximation [in Russian], Moscow University, Moscow (1976).

    Google Scholar 

  3. N. P. Korneichuk,Extremum Problems in the Theory of Approximation [in Russian], Nauka, Moscow (1976).

    Google Scholar 

  4. A. Pinkus,N-widths in Approximation Theory, Springer, Berlin (1985).

    Google Scholar 

  5. N. P. Korneichuk,Exact Constants in the Theory of Approximation [in Russian], Nauka, Moscow (1987).

    Google Scholar 

  6. J. Traub and H. Wozniakowski,General Theory of Optimal Algorithms [Russian translation], Mir, Moscow (1983).

    Google Scholar 

  7. J. Traub, G. Wasilkowski, and H. Wozniakowski,Information, Uncertainty, and Complexity [Russian translation], Mir, Moscow (1988).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 46, No. 9, pp. 1156–1163, September, 1994.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Korneichuk, N.P. Informativeness of functionals. Ukr Math J 46, 1272–1279 (1994). https://doi.org/10.1007/BF01059418

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01059418

Keywords

Navigation