On the exact values of widths of classes of functions in \(L_ 2\)

zbMath0881.43003MaRDI QIDQ1363289

Vladimir M. Tikhomirov, Gregorij G. Magaril-Il'yaev

Publication date: 2 February 1998

Published in: Doklady Mathematics (Search for Journal in Brave)

zbMATH Keywords

Fourier transformconvolutionlocally compact Abelian groupKolmogorov \(\nu\)-width

Mathematics Subject Classification ID

Approximation by arbitrary nonlinear expressions; widths and entropy (41A46) (L^p)-spaces and other function spaces on groups, semigroups, etc. (43A15)

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