Annali di Matematica Pura ed Applicata

, Volume 54, Issue 1, pp 1–12 | Cite as

On the unicity of solutions of problems of best approximation

  • I. J. Schoenberg
  • C. T. Yang


J. C. Mairhuber has given a topological characterization of those compact spaces in which Haar's problem of best approximation may have a unique solution. Under certain restrictive conditions a similar characterization is given here for the case of the complex field investigated by Kolmogroff.


Unique Solution Compact Space Restrictive Condition Complex Field Similar Characterization 
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Copyright information

© Nicola Zanichelli Editore 1961

Authors and Affiliations

  • I. J. Schoenberg
    • 1
  • C. T. Yang
    • 1
  1. 1.The Universities of Pennsylvania and South CarolinaUSA

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