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Publication:3480676
zbMath0702.41035MaRDI QIDQ3480676
Publication date: 1987
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Maximal functions, Littlewood-Paley theory (42B25) Multidimensional problems (41A63) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46)
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Order estimates of the \(L_q\)-norms of generalized derivatives of the Dirichlet-type kernels with an arbitrary choice of harmonics ⋮ The best \(M\)-term trigonometric approximations of the classes of periodic multivariate functions with bounded generalized derivative in the space \(L_q\) ⋮ Estimates of the best orthogonal trigonometric approximations and orthoprojective widths of the classes of periodic functions of many variables in a uniform metric ⋮ Bernstein-Nikol'skii-type inequalities for trigonometric polynomials with an arbitrary choice of harmonics ⋮ Estimation of the best bilinear approximations for the classes of \((\psi, \beta)\)-differentiable periodic multivariable functions
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