Talks given at NuHAG events

N-term approximation by nonseparable wavelet bi-frames

  Martin Ehler

  given at  strobl07 (21.06.07 15:15)
  id:  577
  length:  25min
  status:  accepted
  type:  talk
First, we derive equivalences between the Besov norm and the sequence norm of wavelet bi-frame coefficients. Then, we determine the best n-term approximation spaces of multivariate wavelet bi-frame dictionaries. This talk generalizes dyadic results to isotropic dilation matrices.

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