Nonlinear wavelet approximation in anisotropic Besov spaces
Nonlinear wavelet approximation in anisotropic Besov spaces
复制标题
各向异性贝索夫空间中的非线性小波逼近
DOI:
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
Christopher John Leisner
中科院分区:
文献类型:
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作者:
Christopher John Leisner
Given anisotropic wavelet decompositions associated with the smoothness β, β = (β 1 ,...,β d ),β 1 ,...,β d > 0 of multivariate functions as measured in anisotropic Besov spaces B β , we give the rate of nonlinear approximation with respect to the L p -norm, 1 ≤ p < ∞, of functions f ∈ B β by these wavelets. We also prove that, among a general class of anisotropic wavelet decompositions of a function f E B β , the anisotropic wavelet decomposition associated with β gives the optimal rate of compression of the wavelet decomposition of f.