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We introduce the concept of average best m-term approximation widths with respect to a probability measure on the unit ball or the unit sphere of . We estimate these quantities for the embedding $id:\ell_{p}^{n}\to\ell_{q}^{n}$ with 0<p≤q≤∞ for the normalized cone and surface measure. Furthermore, we consider certain tensor product weights and show that a typical vector with...
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