On the approximation numbers of Sobolev embeddings on singular domains and trees

DOI10.1093/qjmath/55.3.267zbMath1079.46020OpenAlexW4241257424MaRDI QIDQ4652171

D. J. Harris, Yoshimi Saito, W. Desmond Evans

Publication date: 24 February 2005

Full work available at URL: https://doi.org/10.1093/qjmath/55.3.267

zbMATH Keywords

Sobolev embeddingsapproximation numberssingular domains

Mathematics Subject Classification ID

Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Riesz operators; eigenvalue distributions; approximation numbers, (s)-numbers, Kolmogorov numbers, entropy numbers, etc. of operators (47B06) Linear operators on function spaces (general) (47B38) Variational methods for second-order elliptic equations (35J20)

Related Items (6)

Operators of Hardy type ⋮ Approximation numbers = singular values ⋮ Behaviour of the approximation numbers of a Sobolev embedding in the one-dimensional case. ⋮ On the approximation numbers and spectral eigenvalues ⋮ Sobolev Embeddings and Hardy Operators ⋮ Unnamed Item

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