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Divergence (Runge Phenomenon) for least-squares polynomial approximation on an equispaced grid and Mock-Chebyshev subset interpolation.
John P. Boyd
Fei Xu
Published in:
Appl. Math. Comput. (2009)
Keyphrases
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polynomial approximation
least squares
robust estimators
pointwise
robust estimation
lower bound
image interpolation
grid computing
facet model
optical flow
linear interpolation
sparse linear
weighted sum
interpolation method
grid structure