Log in

Linear best approximation using a class ofk-majorl p norms

  • Published:
Numerical Algorithms Aims and scope Submit manuscript

Abstract

Consideration is given to problems of linear best approximation using a variant of the usuall p norms referred to ask-majorl p norms, for the cases when 1<p<∞. The underlying problem is the minimization of a piecewise smooth function. Best approximations are characterized, and a descent algorithm is developed.

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

Access this article

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price includes VAT (Brazil)

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. A. Alzameh and J.M. Wolfe, Best multipoint locall p approximation, J. Approx. Theory 62 (1990) 243–256.

    Google Scholar 

  2. R.H. Bartels, A.R. Conn and J.W. Sinclair, Minimization techniques for piecewise differentiable functions: thel 1 solution to an overdetermined linear system, SIAM J. Numer. Anal. 15 (1978) 224–241.

    Google Scholar 

  3. J. Bergh and J. Löftström,Interpolation Spaces, An Introduction, (Springer, Berlin, 1976).

    Google Scholar 

  4. M. Fang, The Chebyshev theory of a variation ofl p (1<p<∞) approximation, J. Approx. Theory 62 (1990) 94–109.

    Google Scholar 

  5. R.A. Horn and C.R. Johnston,Topics in Matrix Analysis, (Cambridge University Press, Cambridge, 1991).

    Google Scholar 

  6. E. Lapidot and J.T. Lewis, Best approximation using a peak norm, J. Approx. Theory 67 (1991) 174–186.

    Google Scholar 

  7. C. Li and G.A. Watson, On approximation using a peak norm, J. Approx. Theory 77 (1994) 266–275.

    Google Scholar 

  8. Z. Ma and Y.-G. Shi, A variation of rationalL 1 approximation, J. Approx. Theory 62 (1990) 262–273.

    Google Scholar 

  9. J.K. Merikoski and G. De Oliveira, Onk-major norms andk-minor antinorms, Lin. Alg. Appl. 176 (1992) 197–209.

    Google Scholar 

  10. A. Pinkus,On L 1-approximation (Cambridge University Press, Cambridge, 1989).

    Google Scholar 

  11. A. Pinkus and O. Shisha, Variations on the Chebyshev andL q theories of best approximation, J. Approx. Theory 35 (1982) 148–168.

    Google Scholar 

  12. R.T. Rockafellar,Convex Analysis (Princeton University Press, Princeton, NJ, 1970).

    Google Scholar 

  13. Y.-G. Shi, The Chebyshev theory of a variation ofL approximation, J. Approx. Theory 67 (1991) 239–251.

    Google Scholar 

  14. G.A. Watson, Linear best approximation using a class of polyhedral norms, Numer. Algor. 2 (1992) 321–336.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Communicated by C. Brezinski

Rights and permissions

Reprints and permissions

About this article

Cite this article

Watson, G.A. Linear best approximation using a class ofk-majorl p norms. Numer Algor 8, 135–146 (1994). https://doi.org/10.1007/BF02145701

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02145701

Keywords

AMS subject classification

Navigation