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abstract:
We consider the problem of m-term approximation with respect to tensor product function spaces, which can be characterized by tensor product wavelet systems. In particular, we deal with Sobolev and Besov spaces of dominating mixed smoothness.
m-term approximation is a type of nonlinear approximation much discussed in recent years. Furthermore, we shall compare the approximation rates with those for (linear) approximation from sparse grids. |
