Non-linear approximation and interpolation spaces
Date
2001Source
Journal of Approximation TheoryVolume
113Issue
1Pages
110-126Google Scholar check
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We study n-term wavelet-type approximations in Besov and Triebel Lizorkin spaces. In particular, we characterize spaces of functions which have prescribed degree of n-term approximation in terms of interpolation spaces. These results are applied to identify interpolation spaces between Triebel Lizorkin and Besov spaces. © 2001 Academic Press.