Approximation by Smooth Functions in Sobolev Spaces, a Counterexample

DOI10.1112/blms/13.2.167zbMath0426.46023OpenAlexW2006835217WikidataQ124969309 ScholiaQ124969309MaRDI QIDQ3861947

Torbjoern Kolsrud

Publication date: 1981

Published in: Bulletin of the London Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1112/blms/13.2.167

zbMATH Keywords

Sobolev spaceboundary behaviourapproximation by smooth functions

Mathematics Subject Classification ID

Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Boundary behavior of harmonic functions in higher dimensions (31B25)

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