On optimal approximation

  • Arthur Sard
Conference paper
Part of the Lecture Notes in Mathematics book series (LNM, volume 501)


This note presents a new instance of spline approximation in which the observation of a function is its value on an interior contour or hypersurface and the coobservation is its gradient. There follow three comments relevant to the application of the theory of optimal approximation.


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Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • Arthur Sard
    • 1
  1. 1.Department of MathematicsUniversity of CaliforniaLa Jolla

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