scientific article; zbMATH DE number 3640251

zbMath0412.42011MaRDI QIDQ4200661

G. Wilmes

Publication date: 1979

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

best approximation by trigonometric polynomialsRiesz potentialsPeetre K-functionaltrigonometric polynomials of several variables

Mathematics Subject Classification ID

Singular and oscillatory integrals (Calderón-Zygmund, etc.) (42B20) Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Fourier series and coefficients in several variables (42B05)

Related Items (4)

Sharp Ul'yanov-type inequalities using fractional smoothness ⋮ Embeddings and characterizations of Lipschitz spaces ⋮ Ulyanov-type inequalities between Lorentz-Zygmund spaces ⋮ Function Spaces of Logarithmic Smoothness: Embeddings and Characterizations

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