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Neil Strickland
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Approximation theory on the disc

Chebyshev theory provides a very effective method for approximating continuous real valued functions on the unit interval. Is there something similar for continuous real valued functions on the closed unit disc? I can only find papers which discuss analytic complex valued functions, which is not what I need.

Neil Strickland
  • 56.9k
  • 7
  • 142
  • 262