On density of \(C^\infty(\Omega)\) in Orlicz-Sobolev space \(W^k_M(\Omega)\) for every open set \(\Omega\subset R^n\)

zbMath0348.46026MaRDI QIDQ1234462

Henryk Hudzik

Publication date: 1977

Published in: Functiones et Approximatio. Commentarii Mathematici (Search for Journal in Brave)

Mathematics Subject Classification ID

Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35)

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