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When such a space is principal (i.e., generated by a single function), then this characterization is in terms of the Fourier transform of the generator. As a special case, we obtain the classical Strang-Fix conditions, but without requiring the generating function to decay at infinity. 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Approximation from shift-invariant subspaces of 𝐿₂(𝐑^{𝐝}) 论文

Approximation from shift-invariant subspaces of 𝐿₂(𝐑^{𝐝}) · 相关文章